Grossmanite
(repeating unit)CaTi3+AlSiO6 Oxide minerals
Silicate minerals Other
Grossmanite is a very rare mineral of the pyroxene group,[1] with formula CaTi3+AlSiO6.[2] It is the titanium-dominant member. Grossmanite is unique in being a mineral with trivalent titanium, a feature shared with tistarite, Ti2O3.[3] 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.[1]
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Titanium minerals
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