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Brazilianite

The mineral was first discovered by Alfredo Severino de Silva when he was plowing his field in Minas Gerais (Brazil).[1]

Brazilianite can be colorless or in different shades of brown, but the most common varieties are of lemon yellow or yellow-green colors. High level of transparency and beautiful, glassy lustre make the stone a valuable one.[1]

Brazilianite

Basic properties

CompositionNaAl3[OH2|PO4]
ClassPhosphates
Crystal systemMonoclinic
Mohs' hardness5,5
FractureConchoidal
CleavagePerfect
LustreGlassy
StreakWhite
LocalitiesBrazil, USA, Rwanda

References

  1. 1 2 Minerały i kamienie szlachetne by RBA Collecionables, S.A., ISBN 978-83-7813-150-2, 2012.
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