Author: mitchelln08

    MIAMI BEACH, FL, July 10, 2021 /24-7PressRelease/ — The tourmaline group includes a very broad colour spectrum caused by different types of minerals and mineralisation processes. Tourmaline is particularly popular as a very versatile design gemstone. The many different colour ranges are particularly prized by jewelers as allowing a life of creative freedom for fabulous designs. The technical side of tourmaline Tourmaline is technically a “crystalline boron silicate”. The colours come from combinations of other metals, like potassium, aluminium, lithium, and similar elements. Tourmaline is relatively hard, approximately 7 – 7.5 on the Mohs hardness scale. Tourmaline is also a ... Read more