Glittering Stones >> Semi precious stones >> Feldspar

Semi Precious Stone Feldspar

Feldspar was collected by Apollo 16 from the Lunar Highlands near Descartes Crater. This sample is currently on display at the National Museum of Natural History in Washington, DC. Feldspar is the name of a very important group of rock-forming minerals that make up perhaps as much as 65% of the Earth's crust. Feldspars crystallize from magma in the both intrusive and the extrusive rocks; they occur as compact minerals, as veins, and are normally present in many types of metamorphic rock. Rock formed entirely of plagioclase feldspar (see below) is called as anorthosite. Feldspars are also found in most types of sedimentary rock.

Historical Facts of Feldspar Hardness 6 on Mohs scale Mineralogical composition Orthoclase, Albite and Anorthite Groups Plagioclase feldspars, Alkali feldspars Color Off-white,yellowish, flesh pink, brown or green Uses Thermoluminescence dating and optical dating in earth sciences and archaeology

Gemstone Feldspar Jewelry

Feldspar Bracelet

Feldspar Earrings

Feldspar Necklace

Feldspar Rings