Unnamed (OH-analogue of Topaz)
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Formula:
Al2SiO4(OH,F)2
Unique Identifiers
Mindat ID:
39658
Long-form identifier:
mindat:1:1:39658:7
Chemistry of Unnamed (OH-analogue of Topaz)
Mindat Formula:
Al2SiO4(OH,F)2
Element Weights:
Synonyms of Unnamed (OH-analogue of Topaz)
Other Information
Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.
Internet Links for Unnamed (OH-analogue of Topaz)
mindat.org URL:
https://www.mindat.org/min-39658.html
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References for Unnamed (OH-analogue of Topaz)
Reference List:
Wunder, B., Rubie, D. C., Ii, C. R. Ross, Medenbach, O., Seifert, F., Schreyer, W. (1993) Synthesis, stability, and properties of Al2SiO4(OH)2: A fully hydrated analogue of topaz. American Mineralogist, 78 (3-4) 285-297
Zhang, Ru Y., Liou, Juhn G., Shu, Jin F. (2002) Hydroxyl-rich topaz in high-pressure and ultrahigh-pressure kyanite quartzites, with retrograde woodhouseite, from the Sulu terrane, eastern China. American Mineralogist, 87 (4) 445-453 doi:10.2138/am-2002-0408[Topaz with 35-55% substitution of F by OH]
Localities for Unnamed (OH-analogue of Topaz)
Showing 1 localities.
Locality List
- This locality has map coordinates listed.
- This locality has estimated coordinates.
ⓘ - Click for references and further information on this occurrence.
? - Indicates mineral may be doubtful at this locality.
- Good crystals or important locality for species.
- World class for species or very significant.
(TL) - Type Locality for a valid mineral species.
(FRL) - First Recorded Locality for everything else (eg varieties).
All localities listed without proper references should be considered as questionable.
China | |
| Zhang et al. (2002) |
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