Faceting gemstones, pink tourmaline
Im cutting tourmaline in a round shape. This is beginners grade material.
hardness: Mohs 7 to 7.5
refractive index: 1.62 - 1.64
specific gravity : 3.00 to 3.10
websites i use to obtain faceting diagrams:
www.facetingdiagrams.org
www.gemologyproject.com
www.pinterest.com
www.rockhounds.com
www.united states facetersguild.org
My etsy.com store is gemsbymbk
Видео Faceting gemstones, pink tourmaline канала Gems by mbk
hardness: Mohs 7 to 7.5
refractive index: 1.62 - 1.64
specific gravity : 3.00 to 3.10
websites i use to obtain faceting diagrams:
www.facetingdiagrams.org
www.gemologyproject.com
www.pinterest.com
www.rockhounds.com
www.united states facetersguild.org
My etsy.com store is gemsbymbk
Видео Faceting gemstones, pink tourmaline канала Gems by mbk
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