|Dimensions (mm)||20 x 13 x 6mm|
|Weight (carats)||not provided|
SPOTTED QUARTZ POLISHED
This is a natural stone mined in Brazil with black /brown spots in it.These are believed to have been caused by natural radiation in the earth ions ago.Interesting collectors item.
Weight 9.85 cts app
Size 20 x 13 x 6 mm app
Quartz is the most common mineral on Earth. It is found in nearly every geological environment and is a component of almost every rock type. It makes up about 12% of the earth's crust, occurring in a wide variety of igneous, metamorphic and sedimentary rocks. It is also the most varied in terms of variety and color. Quartz is a 7 on the Mohs scale of hardness..
|Starts||26th Aug 2011 10:14pm PDT|
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