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Smithsonian National Museum of Natural History
GeoGallery
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GeoGallery
Arkose
Augen gneiss block
Basaltic cinder
Beryl ( var. trapiche emerald)
Chalk Emerald
Conchita Montana Sapphire Butterfly
Corundum (var. sapphire)
Demantoid with serpentine
Emerald Carving
Fluorites
Freedom Diamond
Gachala Emerald
Gypsum with sulphur
Hemimorphite
Hooker Emerald
Johnstown
Kyanite schist
Mackay Emerald Necklace
Manganoan calcite
Maximilian Emerald
Microcline (var. amazonite)
Migmatite
Missouri River Sapphires
Mogul Emerald Necklace
Montana Sapphires
Parisite with calcite
Phosgenite
Post Emerald Necklace
Quartz (var. agate)
Quartz (var. agate)
Quartz (var. agate)
Quartz (var. smoky quartz) with microcline
Rhodochrosite
Rock Creek Sapphires
Sokol Emerald Necklace
Sulfur
Pagination
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