Name QUARTZ
Variety QUARTZ RED
Origin Ramasdrift (North Cape Province) South Africa
Hardness 7
Composition SiO2
Crystaline sys. TRIGONAL
Size   20,5x15x2,5 cm
Weight 415 gr




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.


Back Home


QUARTZ



VARIETY QUARTZ RED