Gemstone Cabochons As - B

• Aventurine

• Bertrandite

• Bloodstone

• See Gemstone Pendants

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.

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.

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.

Item 1184

Bloodstone Cabochons

• See Gemstone Pendants

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.

Item 1718