mineral

Raw greenish crystal/mineral fragment

Uncertain from image; possibly olivine (forsterite-rich), epidote, or green tourmaline

AI-generated identification · may be incorrect

Small translucent olive-green fragment with a vitreous luster and irregular fracture; apparent hardness is roughly 6–7 Mohs, but color and scale are insufficient for reliable identification. No clear cleavage or crystal habit is visible.

Identified August 13, 2026More mineral →

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Physical properties

Formation & geological history

Could form in magnesium-rich igneous rocks, metamorphic zones, or hydrothermal veins; geological age depends on its host deposit and cannot be determined visually.

Uses & applications

Potentially a mineral specimen or gem rough; transparent, well-formed material might be cut, while ordinary fragments have little commercial use.

Geological facts

Green color alone is non-diagnostic: olivine, epidote, tourmaline, peridot, and several other minerals can appear similar. A scratch, streak, refractive-index, and specific-gravity test would help distinguish them.

Field identification & locations

Common possibilities occur in basaltic and ultramafic rocks, metamorphic belts, and mineral veins worldwide. Check crystal shape, cleavage, streak, magnetism, and whether it scratches glass; avoid destructive testing if valuable.