Luster Collection

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Luster is the way in which light is reflected from the surface of a mineral. Luster can me metallic or nonmetallic. A mineral with a metallic luster shines like polished metal. Non metallic minerals are described as pearly, vitreous, resinous etc. Luster is a reliable tool for mineral identification. This collection demonstrates the property of luster with 15 rock specimens Each specimen is approximately 1.5 x 1.5" in size and keyed for identification The key also includes useful information regarding the rocks composition, structure, texture and formation Specimens Metallic: Galena, Magnetite, Pyrite Nonmetallic: Milky Quartz, Sulfur, Microcline Feldspar, Rose Quartz, Nepheline, Lepidolite, Calcite, Muscovite, Chalcedony Satin Spar Gypsum, Alabaster Gypsum, Quartz Crystal Show more