Adelite

Adelite

The rare mineral adelite, is a calcium, magnesium, arsenate with chemical formula CaMgAsO4OH. It forms a solid solution series with the vanadium bearing mineral gottlobite. Various transition metals substitute for magnesium and lead replaces calcium leading to a variety of similar minerals in the "adelite - duftite group".

Adelite forms variably colored (blue, green, yellow and grey) crystals in the orthorhombic crystal system. The form is typically massive. It has a Mohs hardness rating of 5 and a specific gravity of 3.73 to 3.79.

It was first described in 1891 from Värmland, Sweden. Its name comes from the Greek word for "indistinct".

External links

* [http://www.mindat.org/min-23.html Mindat.org]
* [http://www.webmineral.com/data/Adelite.shtml Webmineral data]


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Look at other dictionaries:

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  • adelite — noun A rare mineral, a calcium magnesium arsenate, forming blue, green, yellow or grey orthorhombic crystals …   Wiktionary

  • adelite — ad·e·lite …   English syllables

  • adelite — ˈadəlˌīt noun ( s) Etymology: International Scientific Vocabulary adel + ite : a mineral consisting of a gray or grayish yellow calcium and magnesium arsenate CaMg(OH)AsO4 (hardness 5, specific gravity 3.74) …   Useful english dictionary

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