USGS mineral specimens used in scratch test. High-definition image showing malachite, copper, galena, and pyrite with varied textures and colors.
Images
Images from the Geology, Energy and Minerals Mission Area
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Scratch Test – Malachite, Copper, Galena, Pyrite,
USGS mineral specimens used in scratch test. High-definition image showing malachite, copper, galena, and pyrite with varied textures and colors.
Silicon Sample 2
High-definition image of silicon specimen with smooth surface and silvery-gray color.
High-definition image of silicon specimen with smooth surface and silvery-gray color.
Silver-Bismuth Ore 2
High-definition image of silver-bismuth ore specimen with dark matrix and metallic flecks.
High-definition image of silver-bismuth ore specimen with dark matrix and metallic flecks.
Sphalerite with Serpentine 2
High-definition image of sphalerite and serpentine specimen with layered structure and greenish hue.
High-definition image of sphalerite and serpentine specimen with layered structure and greenish hue.
Sphalerite with Serpentine 3
USGS mineral specimen of sphalerite with serpentine. High-definition image showing granular texture and color contrast.
USGS mineral specimen of sphalerite with serpentine. High-definition image showing granular texture and color contrast.
Vesicular Basalt – Top View
Isolated USGS mineral specimen of vesicular basalt. High-definition image showing porous top texture and dark volcanic color.
Isolated USGS mineral specimen of vesicular basalt. High-definition image showing porous top texture and dark volcanic color.
Argentiferous Tetrahedrite
Isolated tetrahedrite specimen with silver content. High-definition image showing granular texture and metallic luster.
Isolated tetrahedrite specimen with silver content. High-definition image showing granular texture and metallic luster.
Zinc Sample
Isolated zinc specimen from the USGS mineral collection. High-definition image showing metallic luster and smooth surface.
Isolated zinc specimen from the USGS mineral collection. High-definition image showing metallic luster and smooth surface.
Zirconium Metal Tubing
USGS mineral specimen of zirconium tubing. High-definition image showing cylindrical structure and metallic sheen.
USGS mineral specimen of zirconium tubing. High-definition image showing cylindrical structure and metallic sheen.
Beryllium Ore
Beryllium ore specimen from the USGS mineral collection. High-definition image showing granular structure and pale color.
Beryllium ore specimen from the USGS mineral collection. High-definition image showing granular structure and pale color.
Calcite and Sphalerite Specimen
High-definition image of calcite and sphalerite specimen from the USGS mineral collection. Image shows layered structure and metallic inclusions.
High-definition image of calcite and sphalerite specimen from the USGS mineral collection. Image shows layered structure and metallic inclusions.
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.