mogánite
Sign in to saveAlso known as moganite, IMA1999-035
Moganite is a tectosilicate mineral with the chemical formula SiO2 (silicon dioxide) that was discovered in 1976. The mineral was initially described as a new form of silica, on the basis of specimens found in the Barranco de Medio Almud ravine. This ravine is in the municipality of Mogán, on the island of Gran Canaria, in the Canary Islands region of Spain. In later work, the mineral derived its name from this locality. In 1994, the International Mineralogical Association (IMA) disapproved moganite as a valid mineral, since it was considered to be indistinguishable from quartz. Subsequent stu
Key facts
- Mineral.name
- Moganite
- Mineral.category
- Tectosilicate minerals
- Mineral.group
- Quartz group
- Mineral.image
- Moganite.jpg
- Mineral.caption
- Moganite. Medio Almud ravine, Mogán, Gran Canaria, Spain. Height 5cm.
- Mineral.formula
- SiO2
- Mineral.IMAsymbol
- Mog
- Mineral.strunz
- 4.DA.20
- Mineral.dana
- 75.01.04.02
- Mineral.system
- Monoclinic
- Mineral.class
- Prismatic (2/m) (same H–M symbol)
- Mineral.symmetry
- I2/a
- Mineral.color
- Grey
- Mineral.habit
- Massive
- Mineral.mohs
- 6
- Mineral.luster
- Earthy, dull
- Mineral.streak
- White
- Mineral.diaphaneity
- Transparent
via Wikipedia infobox
Wikidata facts
- Image
- Moganite.jpg
Show 5 more facts
- IMA Mineral Symbol
- Mog
- Commons category
- Mogánite
- chemical formula
- SiO₂·nH₂O
- Nickel-Strunz 9th edition (updated 2009)
- 4.DA.20
- Nickel-Strunz '10th ed', review of (9th ed/ 2009 update)
- 4.DA.20
Sources (2)
via Wikidata · CC0
~2 min read
Article
3 sectionsContents
- Structural information
- Structural phase transition
- References
Moganite is a tectosilicate mineral with the chemical formula SiO2 (silicon dioxide) that was discovered in 1976. The mineral was initially described as a new form of silica, on the basis of specimens found in the Barranco de Medio Almud ravine. This ravine is in the municipality of Mogán, on the island of Gran Canaria, in the Canary Islands region of Spain. In later work, the mineral derived its name from this locality. In 1994, the International Mineralogical Association (IMA) disapproved moganite as a valid mineral, since it was considered to be indistinguishable from quartz. Subsequent studies allowed the IMA to correct this in 1999, accepting moganite as a mineral species. It has the same chemical composition as quartz, but a different crystal structure.
Moganite has been mainly found in dry locales such as Gran Canaria and Lake Magadi. It has been reported from a variety of locations in Europe, India and the United States. Physically, it has a Mohs hardness of about 6, a dull luster, and a semitransparent gray color.