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Chromite Gemstone: Properties, Meanings, Value & More
鉻鐵礦寶石:屬性、含義、價值等
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chromite gemstoneIt’s easy to confuse chromite with any old rock, but this mineral is far from ordinary! 

Chromite is a metallic, black to gray oxide mineral and a variety of spinel. It’s even referred to as “chrome spinel,” but we’ll stick to “chromite” for the sake of this guide. 

Is chromite a rare mineral? Yes and no. Chromite itself is widely abundant, but you won’t usually find it in crystallized form. This makes chromite gemstones a bit harder to come by.

Metaphysically, chromite is considered a powerful stone of protection used for fortifying your physical, emotional, and spiritual bodies. 

Curious to learn more about this understated stone? 

Join us as we break down all that there is to know about what chromite is, how it forms, its meanings, uses, and more in our Chromite Gemstone Guide!

chromite gemstoneImage credit: Rob Lavinsky, iRocks.com – CC-BY-SA-3.0

About Chromite Stone

Chromite is the only economic ore of chromium, an important element for many industrial uses. In fact, that’s how chromite got its name! It’s also derived from Greek chroma, meaning “color.”

So what kind of industrial uses does chromite boast? It can be used:

  • As a ballistic modifier in defense weapons and space vehicles.

  • To harden and manufacture steel.

  • In plating to produce hard, corrosion-free surfaces.

  • For tanning leather.

  • As mordants in textiles.

  • For anodizing aluminum in aircraft and other industries.

  • To form bricks and shapes in the refractory industry.

  • As pigment in paint.

But that’s not all it’s known for. If you’re a fan of the cult-favorite “Final Fantasy” video game series, chromite may be ringing some bells in your head. That’s because the semi-precious gemstone appears in “Final Fantasy XIV.” Players get a chance to mine for chromite ore as they level up in the game. 

Outside of Japanese sci-fi fantasy, how does one identify chromite in the real world? 

Chromite Specifications & Characteristics

Chromite is a member of the spinel group, along with minerals like franklinite, gahnite, magnetite, and spinel. Crystals are usually small, forming as granules, nodules, or in a mass.

Although chromite isn’t usually magnetic, some specimens can show slight magnetism — making it easy to confuse for magnetite. Knowing what to observe in terms of hardness, streak, and density are necessary to tell hand specimens apart.

Here’s an overview of chromite’s mineral data:

  • Chromite formula: FeCr2O4

  • Mineral family: Spinel group 

  • Composition: Chromium, iron, oxygen

  • Mohs hardness: 5.5 to 6

  • Color: Dark gray to black, reddish brown, rarely brownish black 

  • Crystal structure: Isometric

  • Luster: Metallic to submetallic

  • Transparency: Translucent to opaque

  • Refractive index: 2.08 to 2.16

  • Density: 4.0 to 5.1

  • Cleavage: None

  • Fracture: Conchoidal

  • Tenacity: Brittle

  • Streak: Dark brown

  • Luminescence: None

  • Pleochroism: None

  • Treatments: Naturally untreated but can be heat-treated

How many different kinds of chromite are there, anyway? 

microchromite1.jpgImage credit: Northwestern University

Types of Chromite

Chromite has a few varieties differing primarily in composition: 

Aluminum Chromite

This is an aluminum variety of chromite in the chromite-hercynite series.

Alumoberezovite

Alumoberezovite is a magnesian aluminian chromite.

Berezovskite

Berezovskite is a magnesian variety of chromite found mainly in Germany.

Ferrian Chromite

This is a ferrian variety of chromite within the chromite-magnetite series.

Leopardenerz

Leopardenerz is a variety that displays leopard-like chromite patches in a brighter matrix.

Titaniferous Chromite

This is a titanium-bearing chromite variety found mainly in France.

Chromite varieties? Check! Next up, history! 

Leopard_chromite.JPGImage credit: Geologicharka | Creative Commons Attribution-Share Alike 3.0 Unported license

Chromite History

Chromite was officially discovered in 1845 in France by Austrian mineralogist Wilhelm Karl Ritter von Haidinger. He named the mineral for its chromium content. 

Although the mineral is cited as having been discovered in 1845, it was actually described a few decades prior. In 1798, P. Meder named it chromian-säure eisen (German for “chromic acid iron”) and wrote about finding the mineral along river banks in Northern Russia. 

Over time, chromite has been known by a few different names, such as:

  • Chromian-säure eisen (early 1798)

  • Eisenchrom (late 1798)

  • Fer chromaté aluminé (1800)

  • Chromeisenstein (1832)

  • Siderochrome (1841)

  • Chromoferrite (1843)

Finally, in 1844, the mineral garnered its final name change. Since then, we’ve recognized it as “chromite.” 

With regards to healing, what is special about chromite?

ChromitePictured above: Crystals picked out of a chromite concentrate from the Rustenburg mine, Western Bushveld, South Africa | Image credit: Sandatlas

Chromite Healing Properties

Most gems have specific characteristics allowing crystal healers to use them as healing stones to support overall wellness.

Like other black and brown gemstones, the chromite crystal’s meaning is one of protection, grounding, and balance. Its vibrations are said to fortify your physical, emotional, and spiritual bodies on a deeper level.

First, let’s see how chromite can support your physical wellbeing.

Physical Healing

Chromite supports your physical wellness on a cellular level by purportedly helping your body absorb nutrients, mainly vitamins A and D. 

It’s also thought to treat eye disorders and alleviate lung problems.

Emotionally, what is chromite used for?

Emotional Healing

Do you tend to jump the gun? Maybe you let your impulses get the best of you sometimes. If so, chromite can foster a state of non-reaction to unpleasant or stressful situations. 

Chromite doesn’t make you apathetic, though. Instead, it brings you a deeper awareness and enhances your perceptiveness. This way, you’re better equipped to make wise decisions based on logic and strategy instead of letting your emotions take the driver’s seat. 

Chakra Healing

Chakra stones are crystals that help activate and balance your chakras or energy points along the center of your body.  

Like spinel, chromite uses its vibrations to balance your root chakra. You can find this chakra at the base of your spine. As the name implies, this chakra roots your body and soul to the earth. It’s responsible for governing your survival, instincts, and stability.

As a powerful grounding stone, chromite stabilizes your chakral root — centering you, calming you, and making you feel safer. In turn, it allows you to focus on personal growth, boosting your quality of life. 

What is the value of chromite? That depends on grading!

Chromite-783965.jpgImage credit: John Sobolewski (JSS)

Chromite Gemstone Properties

Every gem has characteristics that help experts determine what they’re worth. The chromite properties experts assess to determine its value are color, cut, and size. 

Color

Most chromite is black to gray, but some specimens can also appear reddish-brown to brown. This is a result of their iron-oxide composition.

Inclusions within the mineral, like serpentine, calcite, or olivine, can alter chromite’s color and luster. 

With chromite, the more metallic a specimen is, the more sought-after and valuable it becomes.

Cut

Chromite is mainly sold rough (or uncut), which is also its most affordable form. 

The mineral’s metallic, black appearance makes for some interesting gemstones. It can be faceted into popular gemstone shapes like round, oval, octagon, or trillion-cuts. 

Along with cabochons, chromite is mostly cut for collective purposes only. However, because of its abundance, cut gems tend to be quite inexpensive compared to other minerals on the market. 

Size

Chromite is widely abundant, with many deposits producing large specimens. As a result, finding large chromite specimens isn’t hard. These large pieces are also sold at very accessible prices.

Crystal-quality specimens aren’t as easy to come by, earning them higher prices (especially for larger-sized crystals). 

But before chromite makes it to grading, it first has to form, of course! 

Chromite-551552.jpgImage credit: Leon Hupperichs

Chromite Formation & Sources

It takes a little magmatic action to form chromite — usually alongside other minerals like magnetite or dolomite

Chromite is one of the first minerals to crystallize in ultramafic magmas. It typically occurs in olivine-rich igneous rocks and serpentinized rocks (formed by the transformation of igneous rocks).

Chromite is resistant to weathering; therefore, it’s often distributed in alluvial placers (gravel or sand deposits within lakes or river beds). However, in localities where temperatures are very high, the mineral is oxidized and destroyed.

Geographically, where is chromite found?

Mining Locations

There are chromite localities scattered all over the world. The largest deposit is found in South Africa. Other well-known localities include:

  • Canada

  • Cuba

  • France

  • India

  • Norway

  • Philippines

  • Russia

  • Turkey

  • United States (sparingly)

…to name a few.

Some chromites even have interstellar roots. It’s been found in meteorites, asteroids, and on the moon! Far out, right?

Ready to add some chromite to your crystal collection? Let’s see how much this curious mineral costs.

Chromite_ore.jpgImage credit: IbrZulya | Creative Commons Attribution-Share Alike 4.0 International license

Chromite Stone Price & Value

Fortunately, thanks to chromite’s abundance, stones are fairly affordable — especially in comparison to more popular gems.

Rough chromite is usually the most common form of the mineral you’ll find sold. Rough chromite price per gram ranges between $0.04 to $0.06. High-quality specimens can garner as much as $0.19 per gram.

Faceted chromite fetches higher prices, costing around $10 to $20 per carat. Some higher-end pieces can cost as much as $59 per carat. 

Chromite carvings and chromite cut en cabochon are mostly sold as curiosities with little special attraction, so prices will vary by individual seller. 

In jewelry, chromite is more often used as a master alloy than a gem. Instead, jewelry-makers use it to coat metal and keep it from rusting. Well-formed crystals are rare, making chromite jewelry hard to find. However, it does exist — you’ll just have to do some hunting!

If you’re lucky enough to find chromite jewelry for sale, prices can vary. Chromite rings generally retail for about $30 to $125. Prices increase depending on what kinds of metal and gems are incorporated within the designs. The same goes for bracelets and necklaces.

Now that you have a better idea of what chromite is worth, it’s time to master caring for your gemstones!

Chromite Care and Maintenance

With a hardness of about 6 on the Mohs scale, chromite is a fairly durable gem, but some attention to care is necessary to maintain its appearance.

Firstly, you’ll want to avoid high heat and store it in a cool, dry place. This is because high temperatures can cause chromite’s color and luster to fade. 

Opt for chromite jewelry with protective settings, and be sure to remove it before partaking in impact-prone or rigorous activities, like washing dishes or exercising. 

When cleaning your chromite, use mild soap, water, and a soft-bristled brush or non-abrasive rag. Make sure you remove all soapy residue and dry it thoroughly before storing your chromite.

Declutter Your Mind with Chromite!

Finding your center in times of uncertainty is never easy. Perhaps chromite can be your eye in the storm of it all — bringing you perseverance, serenity, and insight when you need it most. 

Even if you’re living on Easy Street, chromite’s dark, metallic appearance makes it a unique and otherworldly addition to any crystal display. 

Ready to make a home for it in your gem collection?

Buy chromite and other obscure gemstones today!

鉻鐵礦寶石很容易將鉻鐵礦與任何古老的岩石混淆,但這種礦物絕非普通!

鉻鐵礦是一種黑色至灰色的金屬氧化物礦物和各種尖晶石。它甚至被稱為“鉻尖晶石”,但為了本指南,我們將堅持使用“鉻鐵礦”。

鉻鐵礦是稀有礦物嗎?是和不是。鉻鐵礦本身儲量廣泛,但您通常不會發現它呈結晶形式。這使得鉻鐵礦寶石更難獲得。

從形而上學的角度來看,鉻鐵礦被認為是一種強大的保護石,用於強化您的身體、情感和精神體。

想了解更多關於這種低調石頭的信息嗎?

加入我們,我們將在我們的鉻鐵礦寶石指南中詳細介紹什麼是鉻鐵礦、它是如何形成的、它的含義、用途等等!

鉻鐵礦寶石圖片來源:Rob Lavinsky,iRocks.com – CC-BY-SA-3.0

關於鉻鐵礦

鉻鐵礦是唯一經濟的鉻礦石,是許多工業用途的重要元素。事實上,鉻鐵礦就是這樣得名的!它也源自希臘語chroma ,意思是“顏色”。

那麼鉻鐵礦有哪些工業用途呢?它可以用於:

  • 作為防禦武器和太空飛行器的彈道改進劑。

  • 硬化和製造鋼。

  • 在電鍍中產生堅硬、無腐蝕的表面。

  • 用於鞣革。

  • 作為紡織品的媒染劑。

  • 用於飛機和其他行業的陽極氧化鋁。

  • 在耐火工業中形成磚和形狀。

  • 在油漆中用作顏料。

但這還不是它的全部知名度。如果您是最受歡迎的“最終幻想”視頻遊戲系列的粉絲,鉻鐵礦可能會在您的腦海中敲響警鐘。那是因為半寶石出現在“最終幻想 XIV”中。玩家在遊戲中升級時有機會開採鉻鐵礦。

在日本科幻幻想之外,人們如何識別現實世界中的鉻鐵礦?

鉻鐵礦規格和特性

鉻鐵礦是尖晶石族的一員,其他礦物還有富蘭克林石、鋅錳礦、 磁鐵礦和尖晶石。晶體通常很小,形成顆粒、結節或塊狀。

雖然鉻鐵礦通常不具有磁性,但一些標本會顯示出輕微的磁性 - 很容易將其與磁鐵礦混淆。了解在硬度、條紋和密度方面要觀察的內容對於區分手部標本是必要的。

以下是鉻鐵礦礦物數據的概述:

  • 鉻鐵礦分子式:FeCr2O4

  • 礦物族: 尖晶石族

  • 成分:鉻、鐵、氧

  • 莫氏硬度:5.5 至 6

  • 顏色: 深灰色至黑色,紅棕色,很少有棕黑色

  • 晶體結構: 等距

  • 光澤:金屬至亞金屬

  • 透明度: 半透明到不透明

  • 折射率:2.08 至 2.16

  • 密度:4.0 至 5.1

  • 乳溝:無

  • 斷口: 貝殼狀

  • 韌性:脆

  • 條痕:深棕色

  • 發光: 無

  • 多色性:無

  • 處理:自然未經處理,但可以熱處理

到底有多少種不同的鉻鐵礦?

微鉻鐵礦1.jpg圖片來源: 西北大學

鉻鐵礦的種類

鉻鐵礦有幾個主要成分不同的品種:

鉻酸鋁

這是鉻鐵礦-八方鐵礦系列中的鉻鐵礦鋁變種。

鋁鈣鐵礦

Alumoberezovite 是一種鎂鋁鉻鐵礦。

別列佐夫礦

Berezovskite 是一種鎂質鉻鐵礦,主要產於德國。

鐵鉻鐵礦

這是鉻鐵礦-磁鐵礦系列中的一種鉻鐵礦變體。

豹豹

Leopardenerz 是一種在更亮的矩陣中顯示豹狀鉻鐵礦斑塊的品種。

鈦鉻鐵礦

這是一種主要產於法國的含鈦鉻鐵礦品種。

鉻鐵礦品種?查看!接下來,歷史!

豹_chromite.JPG圖片來源:Geologicharka | Creative Commons Attribution-Share Alike 3.0 Unported 許可證

鉻鐵礦歷史

鉻鐵礦於 1845 年由奧地利礦物學家 Wilhelm Karl Ritter von Haidinger 在法國正式發現。他根據其鉻含量為該礦物命名。

儘管該礦物被引用為是在 1845 年發現的,但實際上在幾十年前就已經對其進行了描述。 1798 年,P. Meder 將其命名為chromian-säure eisen (德語,意為“鉻酸鐵”),並撰寫了關於在俄羅斯北部沿河岸發現這種礦物的文章。

隨著時間的推移,鉻鐵礦有幾個不同的名稱,例如:

  • Chromian-säure eisen(1798 年初)

  • Eisenchrom(1798 年末)

  • Fer chromaté aluminé (1800)

  • 克羅米森斯坦 (1832)

  • 鐵鉻 (1841)

  • 鉻鐵氧體 (1843)

最後,在 1844 年,這種礦物獲得了最終的名稱變更。從那時起,我們就將其稱為“鉻鐵礦”。

關於治療,鉻鐵礦有什麼特別之處?

鉻鐵礦上圖:從南非西布什維爾德勒斯滕堡礦的鉻鐵礦精礦中提取的晶體 |圖片來源: Sandatlas

鉻鐵礦治療特性

大多數寶石具有特定的特性,允許水晶治療師將它們用作治療石來支持整體健康。

與其他黑色棕色寶石一樣,鉻鐵礦晶體的含義之一是保護、接地和平衡。據說它的振動可以在更深層次上強化您的身體、情感和精神體。

首先,讓我們看看鉻鐵礦如何支持您的身體健康。

身體治療

據稱,鉻鐵礦可以幫助您的身體吸收營養物質(主要是維生素 A 和 D),從而在細胞水平上支持您的身體健康。

它也被認為可以治療眼部疾病和緩解肺部問題。

從情感上講,鉻鐵礦有什麼用?

情緒療愈

你傾向於跳槍嗎?也許你有時會讓你的衝動得到最好的。如果是這樣,鉻鐵礦可以培養一種對不愉快或壓力大的情況無反應的狀態。

不過,鉻鐵礦不會讓你冷漠。相反,它會給你帶來更深刻的認識,增強你的洞察力。這樣,您就可以更好地根據邏輯和策略做出明智的決定,而不是讓您的情緒佔據主導地位。

脈輪療愈

脈輪石是有助於激活和平衡身體中心的脈輪或能量點的水晶。

與尖晶石一樣,鉻鐵礦利用其振動來平衡您的根脈輪。您可以在脊柱底部找到這個脈輪。顧名思義,這個脈輪將您的身體和靈魂植根於地球。它負責管理您的生存、本能和穩定性。

作為一種強大的接地石,鉻鐵礦可以穩定您的脈輪根——讓您集中註意力、讓您平靜並讓您感覺更安全。反過來,它可以讓您專注於個人成長,提高您的生活質量。

鉻鐵礦的價值是多少?那要看等級!

Chromite-783965.jpg圖片來源:John Sobolewski (JSS)

鉻鐵礦寶石特性

每顆寶石都具有可幫助專家確定其價值的特徵。專家評估以確定其價值的鉻鐵礦特性包括顏色、切工和尺寸。

顏色

大多數鉻鐵礦呈黑色至灰色,但一些標本也可能呈現紅棕色至棕色。這是它們的氧化鐵成分的結果。

礦物中的內含物,如蛇紋石方解石橄欖石,可以改變鉻鐵礦的顏色和光澤。

對於鉻鐵礦,標本的金屬性越強,它就越受追捧和越有價值。

鉻鐵礦主要以原石(或未切割)出售,這也是其最實惠的形式。

這種礦物的金屬黑色外觀造就了一些有趣的寶石。它可以刻面成流行的寶石形狀,如圓形、橢圓形、八角形或萬億形切割。

凸圓形寶石一起,鉻鐵礦大多只是為了集體目的而被切割。然而,由於其豐富性,與市場上的其他礦物相比,切割寶石往往非常便宜。

尺寸

鉻鐵礦儲量廣泛,許多礦床出產大型標本。因此,找到大型鉻鐵礦標本並不難。這些大件也以非常實惠的價格出售。

晶體品質的標本並不那麼容易獲得,因此價格更高(尤其是對於較大尺寸的晶體)。

但在鉻鐵礦進入分級之前,它當然必須首先形成!

Chromite-551552.jpg圖片來源:Leon Hupperichs

鉻鐵礦的形成和來源

形成鉻鐵礦需要一點岩漿作用——通常與磁鐵礦或白雲石等其他礦物一起形成。

鉻鐵礦是最早在超鎂鐵質岩漿中結晶的礦物之一。它通常發生在富含橄欖石的火成岩和蛇紋石岩(由火成岩轉化形成)中。

鉻鐵礦耐風化;因此,它通常分佈在沖積砂礦(湖泊或河床內的礫石或沙子沉積物)中。然而,在溫度非常高的地方,礦物會被氧化和破壞。

從地理上講,鉻鐵礦產地在哪裡?

採礦地點

世界各地都有鉻鐵礦產地。最大的礦床位於南非。其他知名地區包括:

  • 加拿大

  • 古巴

  • 法國

  • 印度

  • 挪威

  • 菲律賓

  • 俄羅斯

  • 火雞

  • 美國(謹慎)

……僅舉幾例。

有些鉻鐵礦甚至有星際根源。在隕石、小行星和月球上都發現了它!很遠,對吧?

準備好在您的水晶收藏中添加一些鉻鐵礦了嗎?讓我們看看這種奇怪的礦物要花多少錢。

鉻鐵礦_ore.jpg圖片來源:IbrZulya | 知識共享署名-相同方式共享 4.0 國際許可

鉻鐵礦價格和價值

幸運的是,由於鉻鐵礦儲量豐富,寶石價格相當實惠——尤其是與更受歡迎的寶石相比。

粗鉻鐵礦通常是您會發現出售的最常見的礦物形式。每克鉻鐵礦原石價格在 0.04 美元到 0.06 美元之間。高質量的標本每克可以賺到 0.19 美元。

刻面鉻鐵礦價格較高,每克拉成本約為 10 至 20 美元。一些高端鑽石的價格可能高達每克拉 59 美元。

鉻鐵礦雕刻品和凸圓形鉻鐵礦切工大多作為珍品出售,沒有什麼特別的吸引力,因此價格會因賣家而異。

在珠寶中,鉻鐵礦比寶石更常被用作母合金。相反,珠寶製造商用它來塗覆金屬並防止其生鏽。結構良好的晶體很少見,因此很難找到鉻鐵礦首飾。然而,它確實存在——你只需要做一些狩獵!

如果您有幸找到出售的鉻鐵礦首飾,價格可能會有所不同。鉻鐵礦戒指的零售價一般在 30 到 125 美元之間。價格上漲取決於設計中包含的金屬和寶石種類。手鐲和項鍊也是如此。

現在您對鉻鐵礦的價值有了更好的了解,是時候掌握如何保養您的寶石了!

鉻鐵礦保養和維護

鉻鐵礦的莫氏硬度約為 6,是一種相當耐用的寶石,但需要注意保養以保持其外觀。

首先,您要避免高溫並將其存放在陰涼乾燥的地方。這是因為高溫會導致鉻鐵礦的顏色和光澤褪色。

選擇帶有保護裝置的鉻鐵礦首飾,並確保在參加容易受到衝擊或劇烈活動(如洗碗或鍛煉)之前將其取下。

清潔鉻鐵礦時,請使用溫和的肥皂、水和軟毛刷或非研磨性抹布。在存放鉻鐵礦之前,請確保清除所有肥皂殘留物並徹底乾燥。

用鉻鐵礦整理您的思想!

在不確定的時期找到你的中心絕非易事。也許鉻鐵礦可以成為您在風暴中的眼睛——在您最需要的時候為您帶來毅力、平靜和洞察力。

即使您住在 Easy Street,鉻鐵礦的深色金屬外觀也使它成為任何水晶顯示器的獨特和超凡脫俗的補充。

準備好在您的寶石收藏中安家了嗎?

立即購買鉻鐵礦和其他不知名的寶石!

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