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The Mineraloids

Mineraloids is the term used for those substances that do not fit neatly into any of the eight classes of minerals. Opal, jet, amber, and mother of pearl all belong to the unofficial class called mineraloids. They are created from organic compounds or lack crystalline structure that would qualify them to be real minerals.

Amber Opal

Mineral Classification

The Gallery of Minerals

INTERESTED IN MORE? IF SO, YOU MAY WANT TO CHECK OUT OUR OTHER SITES: - Our online fossil and mineral rock shop. - An educational site about fossils.