tr.robinson:
10,000 Carat Don Pedro Aquamarine
tr.robinson:
Mesolite and fluorapophyllite crystals
tr.robinson:
Giant fluorite crystals
tr.robinson:
1,300 lb slab o' quartz
tr.robinson:
Fontainebleau Sandstone Concretion
tr.robinson:
Wulfenite - A lead molybdnate crystal
tr.robinson:
Opal!