USGS mineral specimen of silicon. High-definition image showing fine-grained texture and metallic sheen.
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Silicon Sample 3
USGS mineral specimen of silicon. High-definition image showing fine-grained texture and metallic sheen.
Silver-Bismuth Ore
Isolated silver-bismuth ore specimen from the USGS mineral collection. High-definition image showing metallic inclusions and granular texture.
Isolated silver-bismuth ore specimen from the USGS mineral collection. High-definition image showing metallic inclusions and granular texture.
Sphalerite Specimen 6
Isolated sphalerite specimen from the USGS mineral collection. High-definition image showing granular texture and dark luster.
Isolated sphalerite specimen from the USGS mineral collection. High-definition image showing granular texture and dark luster.
Covellite and Pyrite
High-definition image of covellite with pyrite, showing the deep blue iridescence of covellite alongside the brassy metallic luster of pyrite in a single specimen.
High-definition image of covellite with pyrite, showing the deep blue iridescence of covellite alongside the brassy metallic luster of pyrite in a single specimen.
Franklinite, Zincite & Calcite Specimen
Isolated USGS mineral specimen featuring franklinite, zincite, and calcite. High-definition image showing contrasting textures and colors.
Isolated USGS mineral specimen featuring franklinite, zincite, and calcite. High-definition image showing contrasting textures and colors.
Aluminum
Isolated aluminum specimen from the USGS mineral collection. High-definition image showing metallic texture and matte surface.
Isolated aluminum specimen from the USGS mineral collection. High-definition image showing metallic texture and matte surface.
Barite
Isolated barite specimen from the USGS mineral collection. High-definition image showing tabular crystal structure and pale color.
Isolated barite specimen from the USGS mineral collection. High-definition image showing tabular crystal structure and pale color.
Barite Crystal 2
High-definition image of a barite specimen showing layered structure and subtle color variations.
High-definition image of a barite specimen showing layered structure and subtle color variations.
Barite Crystal 3
Isolated USGS mineral specimen of barite with visible crystal faces and granular texture.
Isolated USGS mineral specimen of barite with visible crystal faces and granular texture.
Almandite and Calcite Specimen
Isolated USGS mineral specimen featuring almandite garnet and calcite. High-definition image showing crystal structure and contrasting color.
Isolated USGS mineral specimen featuring almandite garnet and calcite. High-definition image showing crystal structure and contrasting color.
Gold Ore – 14 oz/ton
High-definition image of gold ore specimen with 14 oz per short ton. Isolated USGS mineral sample showing granular texture and metallic highlights.
High-definition image of gold ore specimen with 14 oz per short ton. Isolated USGS mineral sample showing granular texture and metallic highlights.
Gold Ore with Pyrrhotite, Galena, Sphalerite & Pyrite
Gold Ore with Pyrrhotite, Galena, Sphalerite & PyriteUSGS mineral specimen featuring gold ore with pyrrhotite, galena, sphalerite, and pyrite. High-definition image showing complex texture and metallic inclusions.
Gold Ore with Pyrrhotite, Galena, Sphalerite & Pyrite
Gold Ore with Pyrrhotite, Galena, Sphalerite & PyriteUSGS mineral specimen featuring gold ore with pyrrhotite, galena, sphalerite, and pyrite. High-definition image showing complex texture and metallic inclusions.
Graphite Lump 2
High-definition image of graphite clump specimen showing layered texture and dark gray color.
High-definition image of graphite clump specimen showing layered texture and dark gray color.
Gypsum Specimen 2
High-definition image of gypsum specimen showing fibrous texture and pale coloration. Isolated USGS mineral sample.
High-definition image of gypsum specimen showing fibrous texture and pale coloration. Isolated USGS mineral sample.
Kyanite Specimen 2
High-definition image of kyanite specimen with fibrous texture and pale blue hue.
High-definition image of kyanite specimen with fibrous texture and pale blue hue.
Lead-Zinc-Copper Ore 2
High-definition image of lead-zinc-copper ore specimen with granular structure and metallic inclusions.
High-definition image of lead-zinc-copper ore specimen with granular structure and metallic inclusions.
Magnetite with Minnesotaite
Isolated specimen of magnetite with minnesotaite and iron. High-definition image from the USGS mineral collection showing layered texture and dark coloration.
Isolated specimen of magnetite with minnesotaite and iron. High-definition image from the USGS mineral collection showing layered texture and dark coloration.
Nickel Sample
Isolated nickel specimen from the USGS mineral collection. High-definition image showing metallic surface and smooth texture.
Isolated nickel specimen from the USGS mineral collection. High-definition image showing metallic surface and smooth texture.
Oil Shale Sample 2
High-definition image of oil shale specimen with fine-grained texture and dark coloration.
High-definition image of oil shale specimen with fine-grained texture and dark coloration.
Pyrite Crystal
Isolated pyrite specimen from the USGS mineral collection. High-definition image showing cubic structure and metallic luster.
Isolated pyrite specimen from the USGS mineral collection. High-definition image showing cubic structure and metallic luster.
Quartz Crystal 2
High-definition image of quartz specimen with visible inclusions and prismatic structure.
High-definition image of quartz specimen with visible inclusions and prismatic structure.