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Rare Andesine (Sunstone) 3.29 ct aka Reddish Labradorite SKU-11
- UGS
- Dimensions (mm)
- 11.060 x 9.060 x 6.140mm
- Poids (cts)
- 3.290
- Treatment
- No Treatment
- Clarity
- VS
- Taper
- Faceted
- Couleurs
-
You Can check our other Andesine Collection at;
https://www.gemrockauctions.com/stores/gemsmine/andesine-feldspar/
You can check our other Stones Collection at;
https://www.gemrockauctions.com/stores/gemsmine
Andesine is a mineral that belongs to the feldspar group. It is a tectosilicate mineral and is a member of the plagioclase solid solution series, which also includes minerals such as albite and anorthite. The chemical formula of andesine is (Na,Ca)(Si,Al)4O8, indicating its composition of sodium (Na), calcium (Ca), silicon (Si), aluminum (Al), and oxygen (O).
Andesine typically occurs in igneous rocks, particularly in intermediate to high silica content volcanic rocks, such as andesite. It forms as a result of the cooling and crystallization of magma. Andesine can also be found in some metamorphic rocks that have experienced high temperatures and pressures.
One notable characteristic of andesine is its ability to exhibit a range of colors, including white, gray, red, brown, and green. The color variation is due to the presence of different impurities and trace elements in the mineral structure. In particular, red andesine, known as "red labradorite" or "sunstone," is highly valued as a gemstone and is often used in jewelry.
Andesine is named after the Andes Mountains in South America, where it was first discovered. It has also been found in other locations around the world, including the United States, Canada, Russia, and China.
As a gemstone, andesine is valued for its color play and luster. However, it's worth noting that there has been controversy surrounding some commercial forms of andesine gemstones. Certain orange to red-colored andesine gemstones that have appeared on the market were claimed to be from the Congo, but subsequent analysis revealed that they were likely treated labradorite or andesine-labradorite feldspar. Authentic red labradorite, which is a naturally occurring variety of andesine, is rare and highly sought after by collectors and gem enthusiasts.
In summary, andesine is a feldspar mineral found in volcanic and metamorphic rocks. It can exhibit a range of colors, with red andesine being particularly valuable as a gemstone. It is important to be aware of potential imitations and ensure the authenticity of any red labradorite or andesine gemstones being purchased.
Feel free to to “make an offer” on our other items :)
We Accept Payment through
Paypal
Direct Deposit
Credit Cards
- UGS
- Dimensions (mm)
- 11.060 x 9.060 x 6.140 mm
- Poids (cts)
- 3.290
- Treatment
- No Treatment
- Clarity
- VS
- Taper
- Faceted
- Couleurs
-
You Can check our other Andesine Collection at;
https://www.gemrockauctions.com/stores/gemsmine/andesine-feldspar/
You can check our other Stones Collection at;
https://www.gemrockauctions.com/stores/gemsmine
Andesine is a mineral that belongs to the feldspar group. It is a tectosilicate mineral and is a member of the plagioclase solid solution series, which also includes minerals such as albite and anorthite. The chemical formula of andesine is (Na,Ca)(Si,Al)4O8, indicating its composition of sodium (Na), calcium (Ca), silicon (Si), aluminum (Al), and oxygen (O).
Andesine typically occurs in igneous rocks, particularly in intermediate to high silica content volcanic rocks, such as andesite. It forms as a result of the cooling and crystallization of magma. Andesine can also be found in some metamorphic rocks that have experienced high temperatures and pressures.
One notable characteristic of andesine is its ability to exhibit a range of colors, including white, gray, red, brown, and green. The color variation is due to the presence of different impurities and trace elements in the mineral structure. In particular, red andesine, known as "red labradorite" or "sunstone," is highly valued as a gemstone and is often used in jewelry.
Andesine is named after the Andes Mountains in South America, where it was first discovered. It has also been found in other locations around the world, including the United States, Canada, Russia, and China.
As a gemstone, andesine is valued for its color play and luster. However, it's worth noting that there has been controversy surrounding some commercial forms of andesine gemstones. Certain orange to red-colored andesine gemstones that have appeared on the market were claimed to be from the Congo, but subsequent analysis revealed that they were likely treated labradorite or andesine-labradorite feldspar. Authentic red labradorite, which is a naturally occurring variety of andesine, is rare and highly sought after by collectors and gem enthusiasts.
In summary, andesine is a feldspar mineral found in volcanic and metamorphic rocks. It can exhibit a range of colors, with red andesine being particularly valuable as a gemstone. It is important to be aware of potential imitations and ensure the authenticity of any red labradorite or andesine gemstones being purchased.
Feel free to to “make an offer” on our other items :)
We Accept Payment through
Paypal
Direct Deposit
Credit Cards
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PositifA very nice stone.
Pourquoi les utilisateurs se surenchérissent-ils ?
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The Verified Seller has provided accurate and complete information for this item including weight, dimensions, and treatment.
