It has also been used as a gemstone

Name: Calcite Crystal

This is a superb professionally etched end cut specimen of Mundrabilla classified meteorite weighing 12

the leading theory suggests it was formed by a high-energy event

Dimensions:   70x52x34 mm / 2

Natural Quartz Cats Eye | Marquise Cabochon | Brown | 10x5mm | Brazil Hammadah al Hamra (HaH) meteorite It has also been usedProduct Type: Natural Quartz Cats Eye Approx Weight (per piece): 1. 18ct Size: 10x5mm Shape: Marquise Cabochon Color: Brown Clarity: Opaque Origin: Brazil Treatment: Untreated NOTE: There is a small imperfection on the base; see picture #4 Quartz Cats Eye is a type of gemstone that exhibits an optical phenomenon called chatoyancy, which creates a luminous band resembling a cat's eye. It is caused by fibrous inclusions within the quartz that reflect