This is a thumbnail specimen of the diamond-bearing mineral known as Kimberlite. This rock originates from deep within the Earth's mantle zone and is the host rock for diamond deposits around the world. This specimen comes from a locality in New York state in the USA. It has a polished face and a natural face. It weighs approx. .230g.
Refer to the photo. The black centimeter cube is shown for scale and is not included. You are purchasing the specimen shown. Your purchase will include an ID label and gemjar.