Larvikite, Heishi, 4x2mm, Strands are 15 to 16 inches long.
4x2mm strands have 145 to 150 pieces
Larvikite is an igneous rock that is notable for the presence of thumbnail-sized crystals of feldspar. Labradorite and Moonstone are feldspathic minerals. These small crystals inside of Larvikite have the same sheen effect or chatoyancy that Labradorite and Moonstone have. So, many times it is misleadingly called "Black Labradorite or Moonstone".
Prized for its high polish and the labradorescence of its feldspar crystals, Larvikite is used as dimension stone, often cladding the facades of commercial buildings and corporate headquarters.
Larvikite is one of the world's most exquisite and unique natural stones, mostly found in the Norwegian mountains surrounding Larvik. It is also found in China. In 2008 Larvikite became the official national stone of Norway.
Hardness 6-6.5
This is a natural stone that has had no treatment other than cutting, drilling, and polishing.
The source of these beads is China and they are cut, drilled and polished in China.