http://webmineral.com/help/Composition.shtml

Chemical composition of mineral species. ... Mineral formulas are based on the relationship to unit cell volume and the positions of atoms within the unit cell.

https://en.wikipedia.org/wiki/Mineral

The majority of minerals observed are derived from the Earth's crust. ... The chemical composition may vary between end member ...

https://link.springer.com/content/pdf/10.1007/978-3-642-78523-8_1.pdf

The Chemical Nature of Minerals. 1.1 Chemical Composition of Minerals, Crystallochemical. Constraints and the Nature of Impurities. R.H. MITCHELL, M.1.

https://link.springer.com/chapter/10.1007/978-3-642-78523-8_1

Minerals are defined as any naturally occurring crystalline substance. While over 1 million compounds have been synthesized in the laboratory, only about 3500 ...

http://www.physicalgeography.net/fundamentals/10d.html

Minerals are defined by geologists as naturally occurring inorganic solids that have a crystalline structure and a distinct chemical composition. Of course, the ...

https://www.microscopy-uk.org.uk/mag/artdec13macro/Atwater_MineralArticle.pdf

All minerals also have a specific chemical composition, where most are made up of two or more elements. However, some minerals are made up of a single.

https://www.minerals.net/resource/chemical_properties.aspx

For example, the hydrous mineral Opal has a loosely defined composition with an inconsistent amount of water in its structure, thus its chemical formula is written ...

https://www.mindat.org/chemsearch.php

Search Minerals by Chemical Composition. To use the chemical search form click on an element to select it (matches MUST INCLUDE this element.) It will turn  ...

https://www.britannica.com/science/mineral-chemical-compound

May 3, 2019 ... Mineral, naturally occurring homogeneous solid with a definite chemical composition and a highly ordered atomic arrangement; it is usually ...

http://www.geologyin.com/2015/01/the-chemical-composition-of-various.html

Jan 7, 2015 ... The chemical composition of various gemstones, The chemical properties of minerals mainly reflect the chemical properties of the atoms ...