Green Quartz / Chrysoprase / Sea Glass

Hardness of 7 on the Mohs scale, pale to vibrant green color, vitreous to waxy luster, conchoidal fracture, specific gravity of 2.65.

Formed in hydrothermal veins, pegmatites, or as tumbled beach/river pebbles through weathering and erosion over millions of years.

Used in jewelry making, ornamental carvings, crystal healing, and lapidary arts.

Green varieties of quartz often get their color from inclusions of minerals such as green-fuchsite or nickel (in chrysoprase). If this is sea glass, it is man-made glass weathered by wave action.

Found worldwide in alluvial deposits, beaches, or mineral veins. Given the location near Las Vegas (Nevada), quartz and jasper varieties are common in the surrounding deserts and mountains.