Spessartite
Spessartite is an uncommon gemstone (garnet) composed of manganese aluminum silicate. [1]
Spessartite: Quick Facts and Characteristics
Some quick facts for Spessartite:- Transparency: Spessartite is transparent.
- Luster: In terms of luster, spessartite is adamantine.
- Streak: Spessartite streaks white.
- Hardness: Spessartite's hardness is 7 on the Moh's scale.
Spessartite: Background and Summary
Spessartite is a type of garnet mineral that is often found in granite and pegmatite rocks. It is known for its bright orange to reddish-brown color and is sometimes referred to as "mandarin garnet" due to its resemblance to the fruit. Spessartite is a rare mineral and is often found in small quantities, which makes it highly valued by collectors.To identify spessartite, one can look for its distinctive color and crystal structure. It has a vitreous luster and a hardness of 7 to 7.5 on the Mohs scale. It also has a high refractive index, which means it can reflect light in a way that gives it a sparkling appearance. Spessartite can be found in various locations around the world, including Brazil, Madagascar, Nigeria, and the United States.
Spessartite has several uses, including as a gemstone and in the manufacturing of abrasive materials. Its bright color and high refractive index make it an attractive gemstone for use in jewelry. It is also used as an abrasive material in sandpaper and other abrasive products due to its hardness and durability.
Spessartite: Table of Properties
Attribute | Spessartite (src) |
---|---|
Transparency | transparent |
Chemical Formula | Mn3Al2Si3O12 |
Chemical Composition | manganese aluminum silicate |
Hardness | 7 |
Streak | white |
Hydrous | No |
Colors | common: red, pink, brown, orange, yellow |
Spessartite: FAQ
Q: Is spessartite a rare mineral?A: Yes, spessartite is a rare mineral and is often found in small quantities.
Q: What is spessartite used for?
A: Spessartite is used as a gemstone and in the manufacturing of abrasive materials.
Q: Where can spessartite be found?
A: Spessartite can be found in various locations around the world, including Brazil, Madagascar, Nigeria, and the United States.
Q: What color is spessartite?
A: Spessartite is typically a bright orange to reddish-brown color.
Sources
- "Spessartite." Mindat.org. https://www.mindat.org/min-3743.html- "Spessartite Garnet." Gem Society. https://www.gemsociety.org/article/spessartite-garnet-jewelry-and-gemstone-information/
- Spessartite: https://en.wikipedia.org/wiki/Lamprophyre#Species
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