Name QUARTZ
Variety QUARTZ FUMÉ
Origin Virgen da Lapa (Minas Geraes) Brazil
Hardness 7
Composition SiO2
Crystaline sys. TRIGONAL
Size   31x20x18 cm
Weight




Description:
Quartz was chosen by the geologist Friedrich Mohs to represent grade 7 in his famous scale of hardness dating back to 1825, and which is still valid nowadays. Here we show a group crystal of smoky quartz of good dimensions. It is a "floating" group crystal which means that it is finished on all sides. The upper end of the crystals is very interesting and natural.


Back Home


QUARTZ



VARIETY QUARTZ FUMÉ