Minerals identify

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Moganite

Tectosilicate group

Moganite is an oxide mineral with the chemical formula Si ) that was discovered in 1984. It crystallises in the monoclinic crystal system. Moganite is considered a polymorph : it has the same chemical composition as quartz, but a different crystal structure.

In 1994, the International Mineralogical Association (IMA) had disapproved it as being a separate mineral because it was not clearly distinguishable from quartz. It has only recently (1999) been approved as a valid mineral by the CNMNC, the Commission on New Minerals, Nomenclature and Classification (part of the IMA). Its IMA number is (CNMMN, No. 99-035).

This mineral has been mainly found in dry locales such as Gran Canaria It has been reported from a variety of locations in Europe, India and the United States. It was named for the municipality of Mogán Physically, it has a Mohs hardness of about 6, a dull luster and appears as a semitransparent gray in color.

Identification

Color of mineral

Grey

Mohs scale ( mineral hardness )

6

Density ( specific gravity )

1.524
1.531

Luster ( interacts light )

Dull

Crystal ( diaphaneity )

Monoclinic