How diamond is made - material, history, used, processing, parts .It is found in a type of igneous rock known as kimberlite. The diamond itself is essentially a chain of carbon atoms that have crystallized. The stone's unique.processing stone into usable materials,How tin is made - material, used, processing, steps, product, industry .In addition to the ores themselves, several other materials are often used to process . onboard the dredge to separate the soil, sand, and stones from the tin ore.
processing stone into usable materials