WebGreen, or yellowish green chalcedony. Plasma. A dark green variety, frequently found with white or yellowish spots. Plasma is opaque due to densely packed actinolite crystals. Bloodstone, or heliotrope, is plasma … WebJade is the name used to describe either of two hard, dense, usually green gemstones. The more highly prized of the two is Jadeite -- the other is Nephrite. Both jadestones take a high polish. Both have been carved into jewelry, ornaments, small sculptures and tools from the earliest recorded times.
US Gemstone Mines: Arizona Oregon Idaho Montana …
WebArizona State Gemstone or Gem Turquoise (Hydrated Copper Aluminum Phosphate) Adopted in 1974. Turquoise is a blue-green, waxy-surfaced stone used for centuries in Native American jewelry. It can be found … WebThe stone’s vivid green color comes from nickel silicate. It is usually cut into cabachons. This stone is mined exclusively in Australia and is sometimes confused with jade and called "Australian jade”. ... Kingman and Morenci turquoise from Arizona was a popular trade item and has been found in archaeological sites hundreds of miles away ... easy file search software
Azurmalachite: A rock composed of azurite and …
WebOct 9, 2013 · These four greenstones are from gold deposits located all around the world, and show how common this type of deposit is. The piece on the lower left is from … WebChrysoprase is apple-green chalcedony that derives its color from nickel. Its hardness and striking color make it a popular gemstone for jewelry as well as carvings. Hand-carved chrysoprase tree frog figurine. Photo by Jessa and Mark Anderson. Licensed under CC By 2.0. Start an IGS Membership today WebIt forms where the local geochemical environment alternates between the conditions required to form azurite and those required to form malachite. A slice through a piece of azurmalachite reveals this geochemical history in … easy file sharing http server