mineral
Likely galena (lead ore)
Galena, PbS (lead sulfide)
AI-generated identification · may be incorrectSmall, dark gray metallic specimen with bright silver-gray reflective faces, consistent with galena’s cubic cleavage. Mohs hardness 2.5; specific gravity about 7.4–7.6. The photo is not detailed enough to confirm identification.
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Physical properties
Small, dark gray metallic specimen with bright silver-gray reflective faces, consistent with galena’s cubic cleavage. Mohs hardness 2.5; specific gravity about 7.4–7.6. The photo is not detailed enough to confirm identification.
Formation & geological history
Forms in hydrothermal veins and sedimentary-hosted ore deposits, often alongside sphalerite, quartz, or calcite. Such deposits formed at many geological ages.
Uses & applications
Historically the principal ore of lead, used in lead-acid batteries, shielding, and alloys; attractive crystals are collected, though lead-bearing material should be handled carefully.
Geological facts
Galena commonly breaks into cubic fragments and is unusually heavy for its size, useful clues for distinguishing it from many dark minerals.
Field identification & locations
Look for high heft, metallic luster, and right-angle cleavage; common deposits occur worldwide, including the United States, Australia, and parts of Europe. Avoid creating dust or ingesting it because lead is toxic.
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