How to Identify Gemstones & Minerals: Specific Gravity

http://www.MoreGems.com -- Steve Moriarty discusses how to identify a mineral or gemstone using a specific gravity test. He shows you the equation and equipment you will need to narrow down the results when trying to identify a mineral or gemstone. This test is particularly useful when he is looking at or purchasing rough gemstones. You can use this test along side a dichroscope and scratch test equipment to give you a more definitive idea of what the material could be. The one thing that he did not mention in this video, is that heavily included pieces could skew the results of a specific gravity test.

Equation to find Specific Gravity:
(Weight of material in air) / (Weight in Air - Weight in Water) = Specific Gravity

A / (A-B) = C

A= Weight of Mineral in Air
B= Weight of Mineral in Water
C= Specific Gravity of Mineral
Also available to see in person at Moriarty's Gem Art Store at 126 South Main Street, Crown Point, Indiana. We're located in the hub of Northwest Indiana on the downtown Square.

#SpecificGravity #Gemstones #Science

Видео How to Identify Gemstones & Minerals: Specific Gravity канала MoreGems.com