Rock Identifier
Red polished gemstone, possibly ruby or garnet (Uncertain from the blurred image; likely corundum (ruby, Al₂O₃) or garnet-group silicate) — gemstone
gemstone

Red polished gemstone, possibly ruby or garnet

Uncertain from the blurred image; likely corundum (ruby, Al₂O₃) or garnet-group silicate

AI-generated identification · may be incorrect

Small, dark red, translucent-to-opaque, glassy polished surface; hardness is about Mohs 9 for ruby or 6.5–7.5 for garnet. Crystal structure and cleavage cannot be determined visually here.

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Physical properties

Small, dark red, translucent-to-opaque, glassy polished surface; hardness is about Mohs 9 for ruby or 6.5–7.5 for garnet. Crystal structure and cleavage cannot be determined visually here.

Formation & geological history

Ruby forms in metamorphic rocks and some igneous deposits; garnet commonly forms during metamorphism. Ages range from millions to billions of years depending on locality.

Uses & applications

Used as a gemstone, jewelry accent, or collector specimen; ruby also has industrial abrasive and laser applications. Value depends strongly on identity, transparency, color, treatment, and carat weight.

Geological facts

The image is too out-of-focus and lacks scale for reliable species identification. Strong red color alone cannot distinguish ruby from garnet, spinel, glass, or dyed material.

Field identification & locations

Test with a loupe for inclusions, facet geometry, and bubbles; hardness, refractive index, specific gravity, and spectroscopy are needed for confirmation. Common sources include Myanmar, Mozambique, Sri Lanka, India, Brazil, and East Africa.