Magnetite
Magnetite is a major iron ore and is best known for its magnetic properties. All magnetite can be attracted by a
Read morePink crystalline masses found in India, Madagascar, and Brazil. History and Folklore Ares wounded Adonis in combat. As Aphrodite rushed
Read moreBloodstone, or heliotrope, is green chalcedony with flecks of red due to the presence of iron oxide. Yellow or red jasper may also
Read moreTourmaline Description and Natural History Tourmaline is a semi-precious crystal composed of boron and silica with the addition of various
Read moreChalcedony is a form of silica (silicon dioxide) made up of quartz and moganite. It may be semi-transparent or translucent
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