Zincochromite
A variety of Spinel Subgroup
What is Zincochromite?
Zincochromite is a zinc chromium oxide mineral with the formula ZnCr2O4. It is the zinc analogue of chromite, hence the name. It was first described in 1987 as an occurrence in a uranium deposit near Lake Onega, Russia. It has also been reported from Dolo Hill, New South Wales, Australia, and from the Tarkwa Mine in the Ashanti gold belt of Ghana.
Market Value Factors
Pricing varies for every rock and mineral, so use these universal factors to gauge Zincochromite 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.
Quick Facts
Physical Properties
- Color
- Brown, brownish-grey in reflected light
- Hardness (Mohs)
- 5.5 - 6
- Rock tumbling
- With care
Chemical Properties
- Chemical Formula
- ZnCr2O4
- Elements
- Cr, O, Zn
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Zincochromite FAQs
How do I identify Zincochromite?
Zincochromite can be identified by its hardness of 5.5 - 6 on the Mohs scale, Brown color. Look for these key characteristics when examining specimens.
What color is Zincochromite?
Zincochromite typically appears in Brown, brownish-grey in reflected light. Color can vary depending on impurities and formation conditions.
How hard is Zincochromite?
Zincochromite has a hardness of 5.5 - 6 on the Mohs scale. This gives it moderate hardness.
