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Isolated garnierite specimen from the USGS mineral collection.
Garnierite Specimen
Garnierite Specimen
Garnierite Specimen

Isolated garnierite specimen from the USGS mineral collection. High-definition image showing greenish hue and fibrous texture.

Isolated garnierite specimen from the USGS mineral collection. High-definition image showing greenish hue and fibrous texture.

Isolated germanium specimen from the USGS mineral collection.
Germanium Sample
Germanium Sample
Germanium Sample

Isolated germanium specimen from the USGS mineral collection. High-definition image showing metallic luster and smooth surface.

Isolated germanium specimen from the USGS mineral collection. High-definition image showing metallic luster and smooth surface.

High-definition image of refined germanium metal specimen.
Germanium Metal Sample
Germanium Metal Sample
Germanium Metal Sample

High-definition image of refined germanium metal specimen showing shiny surface and silvery color.

High-definition image of refined germanium metal specimen showing shiny surface and silvery color.

High-definition image of gold ore specimen with visible mineral inclusions and rough surface.
Gold Ore Sample 2
Gold Ore Sample 2
Gold Ore Sample 2

High-definition image of gold ore specimen with visible mineral inclusions and rough surface.

High-definition image of gold ore specimen with visible mineral inclusions and rough surface.

Isolated gold ore specimen from Carlin-type deposit.
Gold Ore – Carlin Type
Gold Ore – Carlin Type
Gold Ore – Carlin Type

Isolated gold ore specimen from Carlin-type deposit. High-definition image showing fine-grained texture and subtle gold content.

Isolated gold ore specimen from Carlin-type deposit. High-definition image showing fine-grained texture and subtle gold content.

High-definition image showing varied textures and mineral compositions.
Gold Ores Collection
Gold Ores Collection
Gold Ores Collection

Group of gold ore specimens from the USGS mineral collection. High-definition image showing varied textures and mineral compositions.

Group of gold ore specimens from the USGS mineral collection. High-definition image showing varied textures and mineral compositions.

Graphite in Pegmatite, USGS mineral specimen of graphite crystals in pegmatite rock.
Graphite in Pegmatite
Graphite in Pegmatite
Graphite in Pegmatite

USGS mineral specimen of graphite crystals in pegmatite rock. High-definition image showing flaky texture and contrasting matrix.

USGS mineral specimen of graphite crystals in pegmatite rock. High-definition image showing flaky texture and contrasting matrix.

Isolated hafnium specimen from the USGS mineral collection.
Hafnium Sample
Hafnium Sample
Hafnium Sample

 Isolated hafnium specimen from the USGS mineral collection. High-definition image showing metallic luster and smooth surface.

 Isolated hafnium specimen from the USGS mineral collection. High-definition image showing metallic luster and smooth surface.

 Isolated kyanite specimen from the USGS mineral collection.
Kyanite Specimen
Kyanite Specimen
Kyanite Specimen

Isolated kyanite specimen from the USGS mineral collection. High-definition image showing bladed crystal structure and blue color.

Isolated kyanite specimen from the USGS mineral collection. High-definition image showing bladed crystal structure and blue color.

USGS mineral specimen featuring kyanite and pyrite.
Kyanite with Pyrite
Kyanite with Pyrite
Kyanite with Pyrite

USGS mineral specimen featuring kyanite and pyrite. High-definition image highlighting fibrous structure and metallic inclusions.

USGS mineral specimen featuring kyanite and pyrite. High-definition image highlighting fibrous structure and metallic inclusions.

USGS mineral specimen of lead-zinc-copper ore. High-definition image showing layered texture and varied coloration.
Lead-Zinc-Copper Ore 3
Lead-Zinc-Copper Ore 3
Lead-Zinc-Copper Ore 3

USGS mineral specimen of lead-zinc-copper ore. High-definition image showing layered texture and varied coloration.

USGS mineral specimen of lead-zinc-copper ore. High-definition image showing layered texture and varied coloration.

High-definition image of ore specimen with visible lead, zinc, and copper minerals.
Lead-Zinc-Copper Ore 4
Lead-Zinc-Copper Ore 4
Lead-Zinc-Copper Ore 4

High-definition image of ore specimen with visible lead, zinc, and copper minerals. Isolated USGS sample.

High-definition image of ore specimen with visible lead, zinc, and copper minerals. Isolated USGS sample.

Isolated USGS mineral specimen featuring almandite garnet and calcite.
Almandite and Calcite Specimen
Almandite and Calcite Specimen
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.

High-definition image of magnesite specimen with earthy texture and white-gray tones.
Magnesite (Magnesium Ore) 2
Magnesite (Magnesium Ore) 2
Magnesite (Magnesium Ore) 2

High-definition image of magnesite specimen with earthy texture and white-gray tones.

USGS mineral specimen of nickel-copper matte.
Nickel-Copper Matte
Nickel-Copper Matte
Nickel-Copper Matte

USGS mineral specimen of nickel-copper matte. High-definition image showing granular texture and metallic luster.

USGS mineral specimen of nickel-copper matte. High-definition image showing granular texture and metallic luster.

Isolated brown obsidian specimen from the USGS mineral collection.
Brown Obsidian
Brown Obsidian
Brown Obsidian

Isolated brown obsidian specimen from the USGS mineral collection. High-definition image showing glassy texture and conchoidal fracture.

Isolated brown obsidian specimen from the USGS mineral collection. High-definition image showing glassy texture and conchoidal fracture.

USGS mineral specimen showing chromite band in gabbro with platinum content.
Platinum-Bearing Chromite in Gabbro 1
Platinum-Bearing Chromite in Gabbro 1
Platinum-Bearing Chromite in Gabbro 1

USGS mineral specimen showing chromite band in gabbro with platinum content. High-definition image highlighting layered structure and dark coloration.

USGS mineral specimen showing chromite band in gabbro with platinum content. High-definition image highlighting layered structure and dark coloration.

High-definition image of platinum-bearing chromite band in gabbro.
Platinum-Bearing Chromite in Gabbro 2
Platinum-Bearing Chromite in Gabbro 2
Platinum-Bearing Chromite in Gabbro 2

High-definition image of platinum-bearing chromite band in gabbro. Isolated USGS mineral specimen showing granular texture and metallic inclusions.

High-definition image of platinum-bearing chromite band in gabbro. Isolated USGS mineral specimen showing granular texture and metallic inclusions.

USGS mineral specimens used in scratch test.
Scratch Test – Malachite, Copper, Galena, Pyrite,
Scratch Test – Malachite, Copper, Galena, Pyrite,
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.

High-definition image of silicon specimen with smooth surface and silvery-gray color.
Silicon Sample 2
Silicon Sample 2
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.

Isolated USGS mineral specimen of vesicular basalt.
Vesicular Basalt – Top View
Vesicular Basalt – Top View
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.

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