Kosmochlor
A variety of Minerals
What is Kosmochlor?
Kosmochlor is a rare chromium sodium clinopyroxene with the chemical formula NaCrSi2O6. The name is from German kosmisch, for its occurrence in meteorites, and the Greek chlor, for green. It was first reported in 1897 from the Toluca meteorite, Jiquipilco, Mexico. It occurs as a major constituent of some jadeitites and as an accessory mineral of some iron meteorites. Associated minerals include cliftonite (graphite), chromian diopside, troilite at Toluca; daubreelite, krinovite, roedderite, high albite, richterite, chromite (Canyon Diablo); and jadeite, chromite and chlorite (Burma).
Market Value Factors
Pricing varies for every rock and mineral, so use these universal factors to gauge Kosmochlor before comparing listings or appraisals.
Size & Weight
Larger, intact specimens usually command higher prices.
Rarity & Demand
Scarce material or popular varieties sell at a premium.
Condition & Finish
Chips, repairs, and heavy wear lower value; clean prep helps.
Treatment & Provenance
Untreated specimens with documented locality are prized.
Kosmochlor Localities Map
See where Kosmochlor is found with a localities map, collecting zones, and geology context. Generate a sample map preview below.
Quick Facts
Physical Properties
- Color
- emerald green
- Hardness (Mohs)
- 6
- Streak
- pale green
Chemical Properties
- Chemical Formula
- NaCrSi2O6
- Elements
- Cr, Na, O, Si
Also Known As
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Kosmochlor FAQs
How do I identify Kosmochlor?
Kosmochlor can be identified by its hardness of 6 on the Mohs scale, emerald green color. Look for these key characteristics when examining specimens.
What color is Kosmochlor?
Kosmochlor typically appears in emerald green. Color can vary depending on impurities and formation conditions.
How hard is Kosmochlor?
Kosmochlor has a hardness of 6 on the Mohs scale. This gives it moderate hardness.
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