Nuummite is a rare metamorphic rock that consists of the amphibole minerals gedrite and anthophyllite. It is named after the area of Nuuk in Greenland, where it was found.

Nuummite is usually black in color and opaque. It consists of two amphiboles, gedrite and anthophyllite, which form exsolution lamellae that give the rock its typical iridescence. Other common minerals in the rock are pyrite, pyrrhotite and chalcopyrite, which form shimmering yellow bands in polished specimens.

Nuummite is believed to have healing properties. It is said to help with emotional healing and provide protection against negative energy. Nuummite may also be beneficial in insulin production and regulation, in treating diabetes, low blood sugar and low blood pressure, fainting and dizziness.

In conclusion, Nuummite is a fascinating metamorphic rock that has been used for thousands of years for its healing properties. Its unique composition makes it a valuable addition to any collection.