Rock Identifier
Small blue cut gemstone, possibly synthetic spinel or glass; species cannot be determined from the photo (Undetermined; blue synthetic spinel (MgAl₂O₄) is one possibility) — gemstone
gemstone

Small blue cut gemstone, possibly synthetic spinel or glass; species cannot be determined from the photo

Undetermined; blue synthetic spinel (MgAl₂O₄) is one possibility

AI-generated identification · may be incorrect

A tiny, square step-cut blue stone with a bright, glassy luster. The image is too blurred to assess inclusions, crystal structure, hardness, or whether it is natural; color alone is not diagnostic.

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Physical properties

A tiny, square step-cut blue stone with a bright, glassy luster. The image is too blurred to assess inclusions, crystal structure, hardness, or whether it is natural; color alone is not diagnostic.

Formation & geological history

If synthetic spinel, it was lab-grown rather than formed naturally; if natural, blue gemstones can form in several different geological settings. The specimen’s origin and age cannot be established from the photograph.

Uses & applications

Cut stones are used in jewelry and collecting; synthetic stones are also used as affordable jewelry simulants.

Geological facts

Blue glass and several natural or synthetic gemstones can look very similar in a small, low-resolution image.

Field identification & locations

Confirm identity with magnification and gem tests such as refractive index, specific gravity, and hardness; do not scratch-test a valuable stone. The reported Ethiopian location does not identify a loose cut stone’s source.