Amethyst Pocket StoneAmethyst is a variety of quartz which occurs [throughout the world] either in crystalline or massive form. The associated colour ranges from deep purple to pale lavender. The presence of manganese in clear quartz produces amethyst, while additional a… $0.99 |
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Natural Quartz Crystal Pocket StoneQuartz, as silicon dioxide, crystallizes in the form of masses, grains, druses, and prismatic hexagonal crystals. It is also known as rock crystal. ...
Quartz has both piezoelectric (pronounced pie-ee-zo) and pyroelectric properties; the polarity of… $0.99 |
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Tiger Eye Pocket StoneTiger eye is a quartz replacement of crocidolite [blue asbestos] or of gold asbestos. It differs from cat's eye with respect to the configuration of the fibers; the fibers are twisted or crumpled instead of straight. It exhibits the quality of ch… $0.99 |
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Tumbled Quartz Pocket StoneQuartz, as silicon dioxide, crystallizes in the form of masses, grains, druses, and prismatic hexagonal crystals. It is also known as rock crystal. ...
Quartz has both piezoelectric (pronounced pie-ee-zo) and pyroelectric properties; the polarity of… $0.99 |