Amber Amber is a fossil of a tree called a resin or a tree that has been buried under the earth, and has undergone chemical changes and loss of many elements. The stone of amber or so-called amber stone in the form of nodules irregular or bars or in the form of drops, The color … Read more What are the benefits of amber?
Metal Diamond Diamonds are known as a rare mineral, carbon. The carbon atom surrounds four other carbon atoms connected to strong covalent bonds. Diamonds are considered to be the hardest known natural materials. They are also chemically resistant, have excellent thermal conductivity and are characterized by special optical properties such as refractive index height , … Read more What is the source of the diamond metal