Featured this weekMineral
Mercury
Hg
Mercury is rare in a native state. Although it is a naturally occurring liquid substance, it is never found in "pools". It only occurs as very small blobs on top of mercury ores such as Cinnabar.
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Borax occurs in arid regions, forming from evaporation of saline lakes.
Mineral
Borax
Meionite is the calcium-rich end member of the Scapolite series.
Mineral
Meionite
Unlike most other gemstones which are of mineral origin, Coral is organic, formed by living organisms.
Gemstone
Coral
Xenotime describes a group of several closely related phosphates, arsenates, and vanadates composed of rare earth elements.
Mineral
Xenotime
Shattuckite is an uncommon copper mineral that is highly regarded for its vivid blue color.
Mineral
Shattuckite
Epistilbite is a rare member of the zeolite group.
Mineral
Epistilbite
Hastingsite is a member of the extended Hornblende group.
Mineral
Hastingsite
Additional images for the varieties {$Amethyst$}, {$Citrine$}, {$Smoky Quartz$}, {$Rose Quartz$}, {$Rutilated Quartz$}, and {$Chalcedony$} are listed separately.
Gemstone
Quartz
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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.