Mineralape
Rankamaite
David Hospital·CC BY-SA 4.0·Wikimedia

Rankamaite

(Na,K)3(Ta,Nb,Al)11(O,OH)31
Ortorombico third eye IMA approved

Komposisi

Composizione (% in peso)
Ta
O
  • TaTantalum77.9%
  • OOxygen19.4%
  • NaSodium2.7%

Etimologi

Dinamai dari Kalervo Rankama.

Chakra sekunder

crown