Verwerken...
October’s Birthstones: Exploring Opal & Tourmaline
Oktober Birthstone: geschiedenis, betekenissen, symboliek en meer
Deze tekst is automatisch vertaald. Toon origineel?

Verwerken...

Those born in October have two traditional birthstones: tourmaline and opal. Both unique gemstones have a beautiful, diverse range of colors and optical effects.

Like September, the month of October was named from the Latin octo, meaning “eight,” for its original place in the 10-month early Roman calendar. Anglo-Saxons called October Winterfylleth, meaning “winter full moon,” because they believed winter began during October’s full moon.

One interesting Roman October holiday was Mundus Patet, where the realms of the living and dead were open to each other.

Today, similar holidays like Dia de Los Muertos and Halloween are celebrated in October. October symbolizes fulfillment, reaping what you’ve sown, and the life cycle.

Let’s see if that symbolism matches the October birthstones! Today, we’ll go over all the tourmaline and opal history, properties, meanings, and uses as October birthstones.

october birthstones opal and tourmalinePictured above: Precious opal ring

Historical & Cultural Significance of October Birthstones

What is the official birthstone for October? There are two official semi-precious gemstones designated as October birthstones: opal and tourmaline.

But why are there 2 birthstones for October? Well, there weren’t always two.

The first birthstone lists, created in the 1st to 5th century AD and inspired by Biblical gemstone lists, had October’s birthstone as beryl (or aquamarine specifically).

Modern formalized lists began in 1870, when Tiffany & Co published a pamphlet of “Gregorian Birthstone Poems.” October’s poem was about opal.

The first standardized list came from the National Association of Jewellers (now Jewellers of America) in 1912, who designated opal as the primary October birthstone and tourmaline as the alternative.

In the 1950s, the Jewellery Industry Council of America amended the 1912 list, naming specifically pink tourmaline as the October alternative.

The most recent 2016 American list has opal and pink tourmaline in equal priority for October. The 2013 UK list only has opal.

Surprisingly, the two gems that honor the “dark and spooky” month of October are largely rooted in rainbow-related lore.

antique peacock corsage ornament with opals, gold, diamonds, and enamelPictured above: René Lalique (1860-1945); ‘Peacock’ corsage ornament, circa 1898-1900 with gold, opals, diamonds and enamel; Calouste Gulbenkian Museum | Image credit: © José Luiz Bernardes Ribeiro / CC BY-SA 3.0

Opal’s Mythical Origins & Ancient Folklore

Ancient Greeks believed opals formed from tears of joy shed by the sky god Zeus after defeating the Titans.

Ancient Romans considered opal the queen of gems. One Roman scholar, Pliny the Elder, wrote about opals having all the best qualities of other valuable gemstones like ruby, emerald, and amethyst.

Indigenous Australian (sometimes called “Aboriginal”) opal lore dates back centuries.

One myth about opal origins is of the Rainbow Serpent, a powerful being that flew between water holes, and its iridescent scales fell to the earth as opals.

Another Australian opal origin myth says that an ancestral Creator spirit, went to earth by traveling by rainbow, and opals emerged where their feet touched the ground.

An ancient Indian myth says the Mother Goddess turned the Virgin Goddess of the Rainbow into an opal to help her escape the unwanted affections of multiple gods pursuing her.

antique owl pendant with tourmaline ruby diamond and pearlPictured above: Gold owl pendant with tourmaline, ruby, diamond, and pearl; Dated to 19th century, formerly thought to be from the 16th century;  Displayed at Walters Art Museum | Image credit: Walters Art Museum, Public domain

Tourmaline’s Diverse Historical Connections

Tourmaline has a slightly shorter history than opal, but it’s equally fascinating.

The name for this October birthstone comes from the Singalese (Sri Lankan) word turmali, meaning “mixed gems.” Dutch merchants coined the name for colorful stones in Sri Lankan gem parcels.

Dutch trading of “schorl” (black tourmaline) dates to at least the 1400s, if not earlier.

Another historical discovery of tourmaline came in 1554. Spanish conquistador Francisco Spinoza found a green tourmaline in Brazil that he dubbed “Brazilian emerald.”.

Another notable tourmaline misidentification is “Caesar’s ruby,” a red stone with history among French to Russian royalty going back to the 1500s. It was discovered to be a rubellite tourmaline in the 1920s.

In fact, merchants likely called colored tourmalines other gemstones until the first species (schorl) was analyzed in 1785. The species wasn’t fully recognized until after the discovery of boron in 1808.

After tourmaline was discovered in California in 1892, much of the state’s pink tourmaline was sold to Chinese Dowager Empress Tz’u Hsi, who favored the gem.

polished matrix opal gemstonePictured above: Polished matrix opal

Geological Marvel: The Formation of Opals and Tourmalines

Starting with opals, these gems are amorphous mineraloids, lacking crystalline structure. They’re composed of silica and varied water content.

An opal forms when water containing dissolved silica settles into an area like an ironstone crevice, or rhyolitic geode (“thunderegg”). When the water evaporates, the gel solidifies into opal.

The gem can also form around fossils like ancient sea creatures (e.g. opal belemnite) or wood.

But opal is also a space stone! Opals have been found on Mars in both 2015 and 2023, proving the planet holds water.

The October birthstone tourmaline forms somewhat similarly.

In very deep, high-temperature hydrothermal deposits, tourmaline forms when water containing dissolved boron and silica settles into magma cracks. The magma gradually hardens into rock, the water evaporates, and the elements crystallize.

Mining Locations

Around 95 percent of the world’s precious opal comes from Australia.

Most tourmaline gems come from Brazil or countries in Africa. California, USA, is famous for its pink tourmaline.

orange colored fire opal common opal without play of colorPictured above: Common orange fire opal, faceted

precious opal with play of colorPictured above: Precious opal from Lightning Ridge, Australia exhibiting vivid play of color

Opal's Playful Colors: Unveiling the Magic Within

The broadest opal categories are common opal vs. precious opal.

The opal October birthstone’s composition is made up of silica spheres surrounded by water. If the spheres are disorganized with uneven sizes, you get common opal. Uniformly sized and arranged spheres (like a Buckyball) results in precious opal.

Only “precious opal” displays play-of-color, where iridescent-like colors flash from its surface.

NOTE: Some gemologists use “play-of-color” synonymously with “opalescence.” Others define opalescence as the milky or near-pearly look of some common opals.

Different types of opals are mostly categorized by their body tone (background color), transparency, and play-of-color.

The main types of opal body tones are white opal, gray opal, and black opal. These are distinguished using a body tone chart.

Opals with other body colors include:

Colorless opal varieties include crystal opal, contraluz opal, and jelly opal. Hyalite opal can be colorless. Hydrophane opal turns transparent and colorless in water.

faceted colored tourmaline october birthstone varietiesPictured above: Various colors and varieties of faceted tourmalines

The Many Faces of Tourmaline

“Tourmaline” is actually a complex, varied group of over 30 minerals. The most common species are:

  1. Schorl: Most common species, around 95 percent of all natural tourmalines; Brown to black

  2. Dravite: Relatively common; Nicknamed “brown tourmaline” but can be other colors

  3. Elbaite: Most common gem-quality species, best-known, and most valuable; Can be virtually any color or multi-colored

Each species can produce varieties with different colors. The most commonly sold tourmaline varieties:

  • Black Tourmaline: Only schorl variety; Most common tourmaline; Always opaque

  • Chrome Tourmaline: Dravite; Rare vivid-green

  • Indicolite: Elbaite; Predominantly blue

  • Paraiba Tourmaline: Elbaite; Intensely saturated neon-blue to blue-green or violet

  • Rubellite: Usually elbaite; Saturated pink to ruby-red variety, possible purple, brown, or orange undertones

  • Verdelite: Elbaite; Green variety often called “Brazilian emerald” or “Ceylonese peridot

  • Watermelon Tourmaline: Elbaite; Bi-colored pink and green, typically with a pink center and green border, sometimes separated by a colorless layer

  • Siberite: Elbaite, sometimes considered rubellite sub-type; Nicknamed “purple tourmaline” though it’s usually reddish-violet or violet-red

The pink tourmaline birthstone is an elbaite variety, often falling under rubellite or siberite. Multi-colored options include pink and green watermelon tourmaline and pink and orange “sunset tourmaline.”

The rarest tourmaline variety is Paraíba tourmaline. Pure yellow, orange, blue, purple, or color-changing tourmalines are also rare.

Another factor is pleochroism, which tourmaline is prized for. Specimens that display strong pleochroism are higher-value.

Speaking of value, how are the October birthstones graded?

faceted watermelon tourmaline october birthstonePictured above: Faceted watermelon tourmaline

Evaluating Quality: Opal and Tourmaline Characteristics

Tourmaline grading is much more straightforward than opal. Below, we’ll focus on the standard gemstone value factors — color, cut, clarity, carat weight, and treatments — for both opal and tourmaline. You can learn more about how opal value is graded here.

Color

Opal: The main value factors for these birthstones are the opal’s color (body tone) and the presence of play-of-color. The most common opal color by body tone is white, followed by gray and green. The rarest is black or red. Overall, precious opals are much more valuable than common opals.

The best play-of-color has flashes of red (or every color), displays unique patterns, and covers the stone’s entire surface. Darker specimens like precious black opals display brighter play-of-color, adding to their value.

Tourmaline: The rarest and most valuable tourmaline October birthstone color is Paraiba tourmaline. Black, red, and pink tourmalines are more common. Bright green and blue pleochroism, parti-coloring, or color-changing properties can boost the birthstone’s value.

Cut

Opal: Opals aren’t faceted as commonly as other gems — the one commonly faceted variety is fire opal. Most often, you’ll see opals cut into cabochons or beads. Play-of-color is best in translucent to opaque opal cabochons or fully transparent faceted opals. Many opal cabochons are composites, like opal doublets or triplets.

Tourmaline: Tourmaline gems are often faceted, often with long rectangular shapes. Brilliant cuts may be chosen for more valuable varieties like Paraiba tourmaline. Heavily-included tourmalines are often made into cabochons or carvings, while bi-colored stones may be sliced.

faceted green chrome tourmaline ringPictured above: Faceted chrome tourmaline ring

Clarity & Transparency

Clarity describes the degree of visible inclusions in a stone, which lowers its transparency and value.

Opal: Inclusions generally lower opal’s value. Some inclusions and additional material around an opal leads to distinct varieties like dendritic opal, matrix opal, and boulder opal.

Full transparency is rare and valuable in opals, though black opals are better opaque. Cloudiness will usually lower value.

Tourmaline: Most tourmalines have Type II clarity, meaning minor visible inclusions are expected. Chrome and green tourmalines are Type I (usually inclusion-free), while Paraiba, rubellite, and watermelon tourmaline are Type III (always visibly included).

More visible inclusions and lower transparency mean lower-value tourmaline. The only value-boosting inclusion is the presence of aligned tubes causing chatoyancy (“cat’s eye” effect).

Tourmaline itself is an inclusion in tourmalated quartz.

Carat Weight

Opal: Rarer opals like black or crystal opal may have price-per-carat jumps at intervals like 1-5 cts, 5-10 cts, and 10+ cts.

Tourmaline: Tourmaline birthstones range in size, but gems above 5 cts are pricier. The variety also matters — chrome tourmaline is commonly found up to 5 carats, but Paraiba tourmaline is rarely larger than 1 carat.

Treatments

Opal: Untreated opals are significantly more valuable than treated ones, especially rare varieties like black opal. You can learn how to test for opal treatments here or take your October birthstone to a lab to confirm.

Tourmaline: Treatments will also lower tourmaline’s value, but they’re common in this October birthstone. Common treatments (often to improve coloring or clarity) include irradiation, heat, and/or fracture-filling.

gold pendant with black opal birthstonePictured above: Australian black opal pendant

October Birthstones Meanings & Cultural Beliefs

What is the spiritual meaning of the October birthstones? Besides both gems’ association with rainbows, each one has their own unique symbolism and mystical properties.

Opal Meanings

According to ancient interpretations, opals symbolize purity, hope, and perspective. Romans called opals cupid paederos, or “child as beautiful as love.”

Despite opals being temporarily stained in the 1800s with superstition about being cursed, many ancient societies like China believed opals were lucky. One common superstition that persists is that it’s unlucky for anyone not born in October to wear opal.

As a healing stone, many of opals’ purported properties revolve around vision and the mind. The October birthstone’s healing powers are believed to include treating eyesight problems, boosting cognitive abilities, and letting you see the future.

Tourmaline Meanings

Overall, the tourmaline October birthstone symbolizes compassion, open-mindedness, and forgiveness. It’s sometimes called the “Stone of Reconciliation.”

Each tourmaline color has its own meaning and healing powers. Focusing on pink tourmaline, this October gem is said to boost energy, encourage love, and help smooth relationship troubles.

red coral earrings alternative october birthstonePictured above: Red coral earrings

Alternative October Birthstones

What is the most popular birthstone for October? Opal is usually the “classic,” more popular choice over tourmaline, but there are other October birthstones and crystals!

Popular October birthstone alternatives are beryl and coral.

Astrologically, what is the Libra birthstone? September-born Libras (after the 23rd) can benefit from peridot, rose quartz, and morganite.

What about Scorpio birthstones? September-born Scorpios (before the 23rd) can take advantage of black tourmaline, malachite, and coral.

Personalized October Birthstone Gifts

You have the gem, now what do you do with it? A great October birthstone gift comes from the heart and celebrates your October-born loved one.

Since October is among the most common wedding months, an October birthstone ring is a great way to celebrate too!

You could even get customized jewelry, like an October birthstone necklace with a calendula design, the month’s birth flower.

white precious opal october birthstone necklacePictured above: White precious opal pendant necklace

Overjoyed by October Birthstones?

Both tourmaline and opal are beloved for their range of colors and unique appearances. Do you prefer the recently formalized pink tourmaline, the older traditional opal, or another October birthstone? Follow your heart to which gem feels like you!

Find traditional and alternative October birthstones from our hundreds of gemstones available, or browse our extensive opal selection at Opal Auctions.

Geboortesteen oktober Oktober is het seizoen van verandering. De herfst begint officieel en de natuurlijke wereld verandert in levendige tinten oranje, geel en goud als voorbereiding op een nieuw begin. In navolging van deze kleurrijke overgang zijn twee levendige oktober-geboortestenen: opaal en toermalijn.

Wat is de kleur van de geboortesteen van oktober en waarom zijn er twee geboortestenen voor oktober? Dankzij de enorme verscheidenheid aan opalen en toermalijnen, heb je onbeperkte kleurkeuzes voor het stylen van je geboortesteensieraden.

Wat zijn de geboortestenen van oktober?

De twee geboortestenen voor oktober zijn Opaal en Toermalijn . Laten we eens kijken naar elk van de geboortestenen van oktober, hun geschiedenis, betekenis en symboliek. Eerlijke waarschuwing: je zult de wereld door kleurrijke lenzen zien nadat je over deze stralende edelstenen hebt geleerd!

De Opaal Geboortesteen

Laten we sterk beginnen met het intrigerende juweel met duizend kleuren: de opaal. Opalen zijn een van de oudste en meest geliefde edelstenen vanwege hun unieke iriserende effect. Als je naar een opaaljuweel kijkt, dansen vurige kleuren in opvallende tinten groen, blauw, oranje, rood, groen, wit en geel.

Decennia lang was opaal de originele en enige geboortesteen van oktober, totdat de American Gem Society en National Retail Jewelers Council in 1952 toermalijn als alternatief introduceerden.

Opalen zijn de enige edelstenen die dit kenmerkende kenmerk vertonen dat 'kleurenspel' wordt genoemd. Dus, wat betekent opaal?

Geschiedenis en betekenis

De oudste vermeldingen van deze betoverende steen komen uit India, waar de Sanskrietterm 'Upala' heel toepasselijk 'edelsteen' betekent. De oude Griekse term 'Opallos' betekent 'een verandering zien'.

We denken dat dit de meest nauwkeurige beschrijving is voor de fenomenale overgangen van de kleur van de edelsteen, die in elke kleur verschuift en danst. In de loop der jaren is de term aangepast aan "Opalus" in het Latijn en uiteindelijk "Opal" in het Engels.


De betekenis is geëvolueerd om elke laaiende kleurweergave te beschrijven met de term 'opalescentie'. Schrijvers en moderne denkers vergelijken het kleurenspel vaak met andere natuurlijke fenomenen zoals hemelstelsels, meteorenregens en vulkanen.

oktober geboortesteen opaal

Oorsprong en mijnlocaties

De primaire bron is Australië, aangezien de vele opaalvelden van het land het wereldwijde aanbod domineren. Er zijn ook opaalvelden in Ethiopië, Brazilië en Mexico. De reden hiervoor is dat elke oorsprong en elk veld zijn eigen soort opaal heeft.

Lightning Ridge is bijvoorbeeld een beroemd opaalveld in New South Wales, Australië. Hier vindt u 's werelds grootste aanbod van prestigieuze zwarte opaal . We kunnen het droge, droge klimaat bedanken voor het bakken van deze prachtige edelstenen!

De kleur van deze geboortesteen in oktober is het onderwerp van veel discussie en inspiratie, maar hoe zit het met de diepere symboliek?

Symboliek

Het is geen geheim dat opalen mysterieus en intrigerend zijn. Door de eeuwen heen ontwikkelden zich veel overtuigingen en betekenissen rond opalen, waaronder:

  • De oude Grieken geloofden dat opalen intuïtieve eigenschappen hebben die mensen vooruitzien en profeteren.

  • In Europa vertegenwoordigen opalen hoop, geloof, waarheid en zuiverheid.

  • Opals herdenken een 14e huwelijksverjaardag.

  • Tijdens de oudheid was de bijnaam van opaal "Queen of Gems", omdat mensen geloofden dat de talloze kleuren elke edelsteen omvatten.

We hebben de originele geboortesteen van oktober behandeld, maar wat als Opaal niet jouw stijl is? Geen zorgen! We hebben weer een mooie edelsteen in petto voor verjaardagen in oktober: toermalijn.

De Toermalijn Geboortesteen

Voortbordurend op het thema van verschuiving en overgang, is de tweede geboortesteen van oktober toermalijn! Terwijl opaal een mengeling van kleuren op elke steen vertoont, komt toermalijn in bijna elke kleur die er is, inclusief magenta, blauw, geel, oranje en roze!

Sommige toermalijnen hebben een mengeling van kleuren dankzij hun unieke chemische samenstelling. Toermalijn is een kristallijn silicaatmineraal en sporenelementen veranderen de kleur. De sterkste invloed op de kleur van toermalijn is de aanwezigheid van koper, een natuurlijke kleurstof.

Het is niet verrassend dat deze geboortesteennaam van oktober betrekking heeft op zijn unieke kleuring. Het Singalese woord, "toramalli", betekent "steen met gemengde kleuren", en geeft prachtig de levendige weergave van kleuren weer die te zien zijn in toermalijn-edelstenen. Zoals saffier, de geboortesteen van september,

toermalijn is er in alle kleuren van de regenboog. Dat is uitstekend nieuws voor baby's in oktober die dol zijn op gepersonaliseerde cadeaus!

oktober geboortesteen toermalijn

Geschiedenis en betekenis

Een Spaanse veroveraar ontdekte voor het eerst Toermalijn in Brazilië in de 16e eeuw. Oorspronkelijk aangezien de steen voor een smaragd werd aangezien, hield zijn fout stand tot de jaren 1800 toen mineralogen eindelijk ontdekten dat Toermalijn eigenlijk een volledig onafhankelijke minerale soort is.

Net als opaal heeft toermalijn een veelvoud aan betekenissen en interpretaties; hier zijn enkele van de meest opvallende:

  • In de oudheid geloofden mystici en paranormaal begaafden dat toermalijn creativiteit en expressie inspireerde.

  • De vele kleuren van toermalijn passen bij een spectrum van stemmingen, en enkele van de meest populaire kleuren zijn rood, smaragdgroen en blauwviolet.

  • Deze geboortesteen van oktober is de feestelijke steen voor de 8e huwelijksverjaardag.

Oorsprong en mijnlocaties

De meeste toermalijn-edelstenen komen uit afzettingen in Brazilië, Oost-Afrika, Afghanistan en in de VS. De edelsteen is ook te vinden in Pakistan, India, Sri Lanka en Indonesië.

Symboliek

Dat antwoord hangt af van de kleur waar we het over hebben. Zwarte toermalijn is bijvoorbeeld een van de meest populaire selecties vanwege zijn beschermende helende eigenschappen. Groene toermalijn versterkt uithoudingsvermogen, moed en kracht. Roze toermalijn symboliseert liefde, vriendelijkheid, mededogen en een zachtaardig hart.

We zien toermalijn in elke kleur, maar wat deze steen doet opvallen, is de rijkdom van zijn verzadiging. De meeste toermalijnen zijn levendig en diep gekleurd, waardoor ze prachtige troeven zijn voor geboortesteensieraden!

Oktober Geboortesteen — Edelstenen en sieraden

Er is niets zo resonerend als een persoonlijk cadeau om iemand zich speciaal te laten voelen. Daarom zullen baby's van oktober dol zijn op geboortesteensieraden! Elk van deze juwelen is stevig genoeg voor dagelijks gebruik, maar je zult ze regelmatig willen schoonmaken om ze op de lange termijn glanzend en glanzend te houden.

Ben je op zoek naar het perfecte cadeau voor de verjaardag van oktober in je leven? Waarom verras je ze niet met oktober geboortesteen sieraden! Besteed aandacht aan hun favoriete kleuren. Houden ze van roze? Overweeg dan om ze een roze toermalijn kettinghanger cadeau te doen. Misschien is opaal meer hun snelheid? Je kunt niet fout gaan met een opaal ring!

Dankzij de twee geboortestenen van oktober kun je je cadeau op maat maken. Nu alleen nog de perfecte stenen vinden. Blader vandaag nog door opaal- en toermalijn-edelstenen !

WINKEL VOOR TOERMALIJN EN OPALEN

WINKEL OPALEN OP OPAALVEILINGEN


Deze tekst is automatisch vertaald. Toon origineel?

Was dit artikel behulpzaam?

14 mensen vonden dit artikel nuttig

Opmerkingen

Myprecious757

Great info didn’t even know the US had Tourmaline
Thanks

16th May 2022
Resonance

Very thorough.

23rd Oct 2021
Gladiator

I did learn something today! Thanks for the information.

4th Jul 2020

Zoek de Gemstone Encyclopedia

A-Z Of Gemstones

A-Z Of Gemstones

A-Z Of Gemstones
383 artikelen
Additional Gemstone Information

Additional Gemstone Information

Additional Gemstone Information
60 artikelen
Did You Know?

Did You Know?

Did You Know?
78 artikelen
Drawing Design Awards

Drawing Design Awards

Drawing Design Awards
2 artikelen
Gem Rock Auctions Verified Sellers

Gem Rock Auctions Verified Sellers

Gem Rock Auctions Verified Sellers
3 artikelen
Holistic Gemstone Information

Holistic Gemstone Information

Holistic Gemstone Information
34 artikelen
How To's

How To's

How To's is where you will find helpful articles from gem Rock Auctions on how to cut gemstones, select gemstones and buy gemstones.
9 artikelen
News

News

News and events on Gem Rock Auctions
48 artikelen
Technical Information on Gemstones

Technical Information on Gemstones

Technical Information on Gemstones
30 artikelen