What are minerals? What kinds of minerals are considered gems
No. A gem mineral is a mineral that can be considered a gemstone if  it of a high enough quality. Garnet, for example, is a gem mineral,  but many garnets are not gem-qualit â¦ y.
A mineral is a naturally occurring crystalline substance that can  either be classified as a gem or not. A gem on the other hand, is a  valuable piece of cut and polished mi â¦ neral that is often used in  jewelry.