Nioboholtite
A variety of Minerals
What is Nioboholtite?
Nioboholtite is an extremely rare mineral with the formula (Nb0.6[]0.4)Al6BSi3O18. It is niobium-rich member of dumortierite supergroup, and niobium-analogue of holtite of the holtite group. It is one of three quite recently found minerals of this group, the other two being titanoholtite and szklaryite, all coming from the Szklary village near Ząbkowice Śląskie in Poland. They occur in a unique pegmatite. Nioboholtite and schiavinatoite are both minerals with essential niobium and boron.
Nioboholtite Market Value Calculator
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Nioboholtite Localities Map
See where Nioboholtite is found with a localities map, collecting zones, and geology context. Generate a sample map preview below.
Quick Facts
Physical Properties
- Color
- Creamy-white to brownish-yellow or gray-yellow
- Density
- 3.72 g/cm³
- Streak
- White
Chemical Properties
- Chemical Formula
- (Nb0.6◻0.4)Al6BSi3O18
- Elements
- Al, B, Nb, O, Si
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