Web Results

en.wikipedia.org/wiki/Sapphire

Sapphire is a gemstone, a variety of the mineral corundum, an aluminium oxide It is typically blue in color, but natural "fancy" sapphires ...

www.gemmountainmt.com

Gem Mountain Sapphire Mine Montana | Montana Sapphires Philipsburg Montana.

www.gemmountainmt.com/sapphire-mine

Gem Mountain Montana Sapphire Mine | Hours of operation | Come hunt for your own Sapphires.

www.gemmountainmt.com/about-us

Gem Montain in Montana was first developed in the 1890's and has since produced more than 180 Million carats of Sapphires.

www.thenaturalsapphirecompany.com/education/sapphire-mining

Education customers about sapphire and jewelry.

www.gia.edu/gia-news-research/montana-gem-mountain-sapphire-mine

Jun 3, 2016 ... Join a GIA field team on an expedition to Gem Mountain, Montana, and witness the rarely seen sapphire heat treatment process and tourists ...

www.masonsmine.com

masons ruby and sapphire mine homepage.

www.gemselect.com/other-info/australian-sapphire.php

May 9, 2008 ... A major source of sapphire is Queensland in Australia's northeast. In fact sapphire has been mined commercially for more than 100 years on ...

cherokeerubymine.com

Cherokee Ruby & Sapphire Mine is the International Gem Society's Number 4 Pick ... The Yogo Gulch sapphire locality located in the State of Montana, the Gem ...