usageology
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Amethyst by usageology on Flickr.Amethyst
Fluorite by usageology on Flickr.Fluorite Locality: Elmwood Mine, Smith County, Tennessee
Copper by usageology on Flickr.Copper Locality: Ray Mine, Pinal County, AZ Size: Specimen is 3.63 inches wide.
Schorl by usageology on Flickr.Schorl (Tourmaline) Locality: Erongo Massif, Omaruru District, Namibia Size: Crystal is 1.88 inches tall.
Fluorite by usageology on Flickr.Fluorite Locality: Rosiclare, Illinois Size: Specimen is 6.3 inches wide. usa geology
Corundum variety Ruby in Zoiesite by usageology on Flickr.Corundum Ruby Locality: Longido, Arusha, Tanzania Size: Specimen is 2.63 inches tall
Stilbite “BowTie” by usageology on Flickr.Stilbite “BowTie” Locality: Lonavala Pune India Size: Specimen is 2.38 inches wide.
libutron: Dioptase by usageology on Flickr. Locality: Tantara Mine, Kakounde, Likasi, Shaba Congo D.R. Size: Specimen is 1.2 inches tall.
libutron: Quartz with Spessartine by usageology on Flickr. Locality: Yunxiau, Funian Province, China Size: Quartz crystal is 1.7 inches tall.
