Featured this weekMineral
Hematite
Fe2O3
Hematite is one of the most common minerals. The color of most red and brown rock, such as sandstone, is caused by small amounts of Hematite. It is also be responsible for the red color of many minerals.
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Luzonite is a rare mineral that is dimorphous with Enargite.
Mineral
Luzonite
Mimetite is a member of the Apatite group, a group of isomorphous hexagonal minerals.
Mineral
Mimetite
Celestine is an attractive mineral that forms in well-shaped crystals with a distinctive soft blue color.
Mineral
Celestine
Stellerite is an uncommon member of the zeolite group, and is very similar in structure and formation to Stilbite.
Mineral
Stellerite
Uvite is an uncommon form of Tourmaline, and it forms different
crystal formations than the most of the other Tourmalines.
Mineral
Uvite
Below is an image for each one of the members of the Plagioclase group.
Mineral
Plagioclase
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The Mineral and Gemstone Kingdom is a free informational and educational guide to rocks, minerals, gemstones, and jewelry. This site has been providing detailed information and photos of hundreds of minerals and gemstones since 1997 and is one of the leading education resources on minerals and gemstones. More →