:: SUWA/Dictionary-Gemstones,Quality and Value::

Name of Mineral : Quartz
Mohs Hardness : 7
Refractive Index : 1.544~1.553
Specific Gravity : 2.66

Weight : 40.14 ct
Size (mm) : L 23.4 x W 19.4 x D 13.06
Goias, Brazil
Untreated
Gem Quality
us $1,200