Name | TOPAZ | Variety | IMPERIAL TOPAZ | Origin | Ouro Preto, Minas Gerais (Brazil) | Hardness | 8 | Composition | Al2SiO4(F,OH)2 | Crystaline sys. | RHOMBIC
| Size | 12,2 x 11,5 x 6 cm | Weight | 1.142 gr |
Description:
Topaz was chosen by the geologist Friedrich Mohs to represent grade 8 in his famous scale first published in 1825 and which is still valid today. Without doubt it is one of the great gems and a mineral that stands out in any collection due to the beauty, colour and size, sometimes of gigantic proportions, of its crystals. It is rare to find specimens of imperial topaz in a matrix. This one is even more exceptional, as the quality is good enough to be cut. |
|
TOPAZ
VARIETY IMPERIAL TOPAZ
|