Name | TOPAZ | Variety | TOPAZ WITH INCLUSION OF GOETHITE | Origin | Minas Geraes (Brazil) | Hardness | 8 | Composition | Al2SiO4(F,OH)2 | Crystaline sys. | RHOMBIC
| Size | 3,8x1,5x1 cm | Weight | 8,5 g |
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. |
|
TOPAZ
VARIETY TOPAZ WITH INCLUSION OF GOETHITE
|