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Magnified 35x
Magnified 35x
Peridot from the Kilbourne Hole area of the US state of New Mexico often contains a smoke-like inclusion. - Photo by John I. Koivula/GIA
Peridot can contain “lily pads,” which are disk-shaped inclusions surrounding a tiny crystal, named for their unusual shape. - Photo by John I. Koivula/GIA
Small, dark objects seem to float in this magnified peridot. They are spinel crystals. Can you point out the one that is shaped like an octahedron? - Photo by John I. Koivula/GIA

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