Pinolite is a metamorphic rock that is a mixture of dolomite, graphite, and magnesite. The dolomite and graphite give the stone a gray and black color, while the magnesite appears in whitish clumps that look like the edible seeds of the pine tree, Pinus pinea.
Because of the white clumps, the stone has also sometimes been called Pinolith or Pine Stone, or Pine Nuts Pinolith.
It was discovered in 1873 in the Styria region of Austria.
In a metaphysical sense, the stone is said to have a calming and grounding effect, channeling energy from the ground through the body to the heavens.
We have a number of Pinolite cabochons on our Heart of Stone Studio website, www.heartofstonestudio.com.