Please submit only sites related to minerals and mineralogy in this category. Sites selling minerals should be listed under Science:Earth Sciences:Geology:Rocks and Minerals:Shop or Science:Earth Sciences:Geology:Rocks and Minerals:Minerals:Dealers. Gemstone related sites or sites selling gemstones should be listed under Science:Earth Sciences:Geology:Rocks and Minerals:Gemstone or Shopping:Jewelry:Supplies:Gemstones.
Commercial websites of dealers in mineral specimens.
For dealers offering a wider range of rocks and minerals, see Science:Earth Sciences:Geology:Rocks and Minerals:Shop.
Optical mineralogy, the microscopic study of minerals (primarily in thin section), is one subfield of the science of mineralogy. This category contains web sites about thin-section preparation, the characteristics of minerals in thin section, and other aspects of optical mineralogy.