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Gemstone Cabochons As - B

Astrophyllite Cabochons

Astrophyllite crystallizes in the form of stars stretched into thin plate crystals. Named from the greek words "aster" (star) and "filon" (leaf). From Chibine on the Kola peninsula in the far north of Russia.

Astrophyllite Gemstone Cabochon
Item
1831
Astrophyllite Cabochon
Item 1763
   

Aventurine Cabochons

Aventurine is a form of quartz translucent with platy mineral inclusions that give a shimmering effect called aventurescence. Most commonly green in color, it may also be orange, brown, yellow, blue, or gray.  Fuchsite is the typical inclusion, and gives a silvery green or blue sheen. The majority of green and blue-green aventurine originates in India.

Aventurine Gemstone Cabochon
Item
1815
     

Azurite Malachite Cabochons

Azurite Malachite is a combination of two minerals azurite and malachite.  Azurite can undergo a chemical change that will cause it to become malachite, this results in stone with the properties and colors of both minerals.  Azurite is a brilliant blue and Malachite a brilliant green resulting is a beautiful stone.  This stone can also contain other minerals such as Cuprite, Calcite, Chrysocolla, and Copper.

Azurite Malachite Gemstone Cabochon
Item
2053

Azurite Malachite Gemstone Cabochon

Item 2032

   

Bertrandite / Tiffany Stone

Bertrandite or Tiffany Stone is composed of many minerals, that vary from sample to sample. It is rare, because it comes from an area in the west desert of Utah where beryllium is mined and is crushed during the mining process. The name bertrandite is misleading as it is not the major mineral in the stone. The name tiffany stone came from the patterns in the stone resembling tiffany glass. It is an opalized stone that forms in nodules, composed mostly of opalized fluorite with other minerals such as quartz, chalcedony, dolomite, rhodonite, manganese oxides, bertrandite, beryl, opal, and others. Most commonly patterned in purple, blue, white and black it is an unusual and beautiful gemstone.

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Tiffany Stone or Bertrandite Gemstone Cabochon

Item 2104

Tiffany Stone or Bertrandite Gemstone Cabochon

Item 2105

Tiffany Stone or Bertrandite Gemstone Cabochon
Item
1184
 

Bloodstone Cabochons

Bloodstone is the mineral heliotrope and is a form of chalcedony. The "classic" bloodstone is green jasper with red inclusions. Sometimes other colors are also present, but these multi-colored gemstones are referred to as "fancy jasper".  The primary source of the stone is India. It is also found in Brazil, China, Australia, and the United States. In the Middle Ages the red spots were said to be the blood of Jesus, and the stone was believed to have miraculous powers.

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Bloodstone Gemstone Cabochon
Item
1718

     
   

 

 

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