Aquamarine is a transparent to translucent stone ranging from cerulean blue to light blue in higher grades. In lower grades it can be transparent to opaque and is commonly light...
Diopside is a calcium and magnesium silicate mineral. It is transparent or translucent, and can display a nearly emerald green color due to the presence of Chromium within the stone....
Hubei Turquoise- From the Hubei province in Northern China. Two of the finest mines in the Hubei province are the Yungai, which means, "a mountain covered with cloud" and the...
Stone meteorites were once the outer crust of a planet or asteroid and were formed at the beginning of our solar system 4.6 billion years ago. Meteorites like these are...