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(NR) 1.58ct Exceptional Cobalt blue-like Spinel | Natural from Burma
- UGS
- Dimensions (mm)
- 6.7 x 5.9 x 4.8mm
- Poids (cts)
- 1.58
- Treatment
- No Treatment
- Shape
- Cushion
- Type
- Faceted
- Clarity
- VVS
- Couleurs
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Welcome to SuchenGems!
Spinel is a gem and mineral, typically known for its vibrant colors and hardness of 8 on the Mohs scale. It's a member of a group of rock-forming minerals that are metal oxides with the general composition ABO, where A can be magnesium, iron, zinc, manganese, or nickel, and B can be aluminum, chromium, or iron. Spinel's most common color is red, but it can also be found in shades of blue, green, brown, black, pink, and even colorless.
Here's a more detailed description:
Composition and Structure:
Spinel has a chemical formula of MgAl2O4, meaning it's composed of magnesium, aluminum, and oxygen.
It belongs to the cubic crystal system and typically forms octahedron-shaped crystals (two back-to-back pyramids).
The spinel group is divided into three series based on the element in the "B" position: aluminum-spinel, chromium-spinel (chromite), and iron-spinel (magnetite).
Color:
Spinel's color is primarily due to trace elements like chromium, iron, and cobalt.
Intense reds and pinks are often caused by chromium, while mixtures of iron and chromium can result in orange and purple stones.
Violet to blue spinel is colored by iron, and vibrant blues can be due to cobalt.
Some spinels can also appear greenish, brown, black, or even colorless.
Physical Properties:
Hardness: 8 on the Mohs scale (durable for jewelry).
Specific Gravity: 3.60.
Refractive Index: 1.718.
Transparency: Generally transparent to translucent.
Cleavage: No true cleavage (making it less likely to fracture easily).
Crystal System: Cubic.
Occurrence and Uses:
Spinel is found in various geological settings, including gravel deposits, metamorphic rocks, and some igneous rocks.
It's a popular gemstone, often used in jewelry due to its hardness and vibrant colors.
Some notable spinel locations include Sri Lanka, Afghanistan, Tajikistan, Vietnam, Tanzania, and Kenya.
Historically, red spinels were often mistaken for rubies due to their similar color.
The fine, intense red spinels from Mogok, Myanmar are known as "anyant pan" and are highly prized.
| Fournisseur d'expédition | Expédition vers Thaïlande | Expédition dans le reste du monde | Expédition combinée ( Thaïlande ) | Expédition combinée (reste du monde) |
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- UGS
- Dimensions (mm)
- 6.7 x 5.9 x 4.8 mm
- Poids (cts)
- 1.58
- Treatment
- No Treatment
- Shape
- Cushion
- Type
- Faceted
- Clarity
- VVS
- Couleurs
-
Welcome to SuchenGems!
Spinel is a gem and mineral, typically known for its vibrant colors and hardness of 8 on the Mohs scale. It's a member of a group of rock-forming minerals that are metal oxides with the general composition ABO, where A can be magnesium, iron, zinc, manganese, or nickel, and B can be aluminum, chromium, or iron. Spinel's most common color is red, but it can also be found in shades of blue, green, brown, black, pink, and even colorless.
Here's a more detailed description:
Composition and Structure:
Spinel has a chemical formula of MgAl2O4, meaning it's composed of magnesium, aluminum, and oxygen.
It belongs to the cubic crystal system and typically forms octahedron-shaped crystals (two back-to-back pyramids).
The spinel group is divided into three series based on the element in the "B" position: aluminum-spinel, chromium-spinel (chromite), and iron-spinel (magnetite).
Color:
Spinel's color is primarily due to trace elements like chromium, iron, and cobalt.
Intense reds and pinks are often caused by chromium, while mixtures of iron and chromium can result in orange and purple stones.
Violet to blue spinel is colored by iron, and vibrant blues can be due to cobalt.
Some spinels can also appear greenish, brown, black, or even colorless.
Physical Properties:
Hardness: 8 on the Mohs scale (durable for jewelry).
Specific Gravity: 3.60.
Refractive Index: 1.718.
Transparency: Generally transparent to translucent.
Cleavage: No true cleavage (making it less likely to fracture easily).
Crystal System: Cubic.
Occurrence and Uses:
Spinel is found in various geological settings, including gravel deposits, metamorphic rocks, and some igneous rocks.
It's a popular gemstone, often used in jewelry due to its hardness and vibrant colors.
Some notable spinel locations include Sri Lanka, Afghanistan, Tajikistan, Vietnam, Tanzania, and Kenya.
Historically, red spinels were often mistaken for rubies due to their similar color.
The fine, intense red spinels from Mogok, Myanmar are known as "anyant pan" and are highly prized.
| Fournisseur d'expédition | Expédition vers Thaïlande | Expédition dans le reste du monde | Expédition combinée ( Thaïlande ) | Expédition combinée (reste du monde) |
|---|---|---|---|---|
| Standard Shipping - Tracked |
|
|
|
|
| FedEx |
|
|
|
|
| DHL |
|
|
|
|
"Family-owned and operated, SuchenGems promises exceptional service, quality, and authenticity.
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Positif
EXCELLENT!
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PositifGood stone, correct photo, maybe a bit less intense color
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Positif
Good stone, correct photo, maybe a bit less intense color
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Positif
Pretty little stone, beautiful colour, thank you
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Positif
Beautiful gems as always. I love ordering from suchengems!!
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Audit
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Description Précis
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Images précises
Comments
After thorough evaluation of the Verified seller's information provided, Gem Rock Auctions has found accurate and honest pictures and details for this listing. Gem Rock Auctions is committed to holding our sellers to the highest standards of integrity and transparency. As part of this policy, we only permit the sale of natural, earth mined, gemstones. Manmade, synthetic, and imitation gemstones are not permitted on Gem Rock auctions. Many Gemstones have received treatments to enhance their color and/or clarity to further emphasize their beauty and we insist treatments are disclosed. Unless accompanied by a report from an approved laboratory, all origins or treatments declared in the listing are the sellers' opinion. There are limitations to what can be determined without physically handling the listed item.
