mineral

Small dark mineral/rock fragment

Indeterminate; possibly magnetite-bearing basalt or iron-rich slag

AI-generated identification · may be incorrect

Black to dark gray, irregular and granular, with a dull to submetallic luster; hardness likely about 5–6.5 Mohs. The image is insufficient to determine crystal structure, cleavage, or specific gravity.

Identified August 9, 2026More mineral →

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Physical properties

Formation & geological history

Could be a natural volcanic fragment containing magnetite, formed from cooling basaltic magma, or anthropogenic iron-rich slag; geological age and formation cannot be established visually.

Uses & applications

No practical use at this size; larger basalt is used as aggregate and magnetite as an iron ore. A distinctive crystal or confirmed meteorite origin could add collecting interest.

Geological facts

Its dark color alone does not indicate a meteorite; most suspected meteorites are terrestrial slag or ordinary basalt. A strong magnet response would support magnetite or metallic iron, but is not diagnostic by itself.

Field identification & locations

Test magnetism, streak, density, and fresh fracture; magnetite leaves a black streak, while hematite leaves reddish-brown. A laboratory analysis or polished cross-section is needed for reliable identification; common basalt/magnetite fragments occur worldwide.