Rock Identifier
Raw orange garnet (likely hessonite) (Grossular garnet, Ca₃Al₂(SiO₄)₃; variety hessonite) — mineral
mineral

Raw orange garnet (likely hessonite)

Grossular garnet, Ca₃Al₂(SiO₄)₃; variety hessonite

AI-generated identification · may be incorrect

Small orange, translucent rough crystal with vitreous luster; garnet hardness is 6.5–7.5 Mohs and crystals are commonly isometric, with no cleavage. The photo alone cannot confirm the variety or composition.

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Physical properties

Small orange, translucent rough crystal with vitreous luster; garnet hardness is 6.5–7.5 Mohs and crystals are commonly isometric, with no cleavage. The photo alone cannot confirm the variety or composition.

Formation & geological history

Grossular commonly forms during metamorphism of calcium-rich rocks, including skarns and marbles; deposits span many geological ages.

Uses & applications

Garnets are used as gemstones and abrasives; this small rough piece is mainly suitable for collecting unless it proves gem-quality.

Geological facts

Garnet is a mineral group rather than a single species; orange grossular is commonly called hessonite.

Field identification & locations

Its orange color and rough crystal habit are consistent with garnet, but identification needs tests such as hardness, streak, and ideally gemological analysis. Garnets occur worldwide, including Sri Lanka, India, Madagascar, and Canada.