Topaz (var. Imperial)
-
Al2SiO4(F,OH)2
Description
Intact, transparent, orange sharp crystal with very few inclusions.
Mina Antônio Péreira, Dom Bosco, Minas Gerais
Collection of origin
Perkins & Ann Sams (USA), Houston Museum (USA)
Probable extraction year
1979
For the type locality, Topasos (Zabargad), the Red Sea, Egypt, and the adjective imperial for its beautiful orange color.
Class
Dimensions (length x with x height in cm)
2x3.5x12
Hardness (Mohs)
8
Density (G/cm3)
3.6
Publication
"Mineralogical Record: Jan-Feb 1984", "Mineralogical Record: Jan-Feb 1992", "Masterpieces of the Mineral World: Treasures From the Houston Museum of Natural Science", "Minéraux - Le Guide des Passionnés&quo
