Metallic

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Metallic luster is the highest luster. Found on gems with a refractive index of 2.5 or higher. Equivalent to the polish on a metal object. Example: Hematite (marcasite)

Submetallic luster is slightly less lustrous than metallic.

These antique style hematite earrings are a perfect example of metallic luster. Photo courtesy of Lang Antiques
Lang Antiques
Lang Antiques