Howlite

Howlite is mostly found in California, USA, but was first discovered in Canada. Howlite is composed of hydrous calcium borate and is opaque.

Howlite is known to be a very calming stone and helps with anger, stress and rage.

Howlite is associated with the throat chakra.

Chemical formula: Ca2B5SiO9(OH)5

Hardness: 3.5