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ATHENA

MINERALOGY

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Mineral: TOPAZ
Formula: Al2SiO4(F,OH)2
Crystal System: Orthorhombic
IMA Number: ?
References: MM 43 (1980), 943; HB2/2 (1995); L2 (2014), 7; Sc. Reports 11 (2021), 2666
Topaz (2 x 0.7 cm)
Minas Gerais, Brazil
Coll. and Photo © John Veevaert, Trinity Minerals
See also: athena.unige.ch -> mineral pictures

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