Grossmanite
A variety of Minerals
What is Grossmanite?
Grossmanite is a very rare mineral of the pyroxene group, with formula CaTiAlSiO6. It is the titanium-dominant member. Grossmanite is unique in being a mineral with trivalent titanium, a feature shared with tistarite, Ti2O3. Titanium in minerals is almost exclusively tetravalent. Grossmanite stands for titanium-analogue of davisite, esseneite and kushiroite - other members of the pyroxene group. Both grossmanite and tistarite come from the famous Allende meteorite.
Market Value Factors
Pricing varies for every rock and mineral, so use these universal factors to gauge Grossmanite 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.
Grossmanite Localities Map
See where Grossmanite is found with a localities map, collecting zones, and geology context. Generate a sample map preview below.
Quick Facts
Physical Properties
- Color
- Light gray
- Density
- 3.41 g/cm³
Chemical Properties
- Chemical Formula
- CaTi3+ AlSiO6
- Elements
- Al, Ca, O, Si, Ti
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Grossmanite FAQs
How do I identify Grossmanite?
Grossmanite can be identified by its Light gray color. Look for these key characteristics when examining specimens.
What color is Grossmanite?
Grossmanite typically appears in Light gray. Color can vary depending on impurities and formation conditions.
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