Log In
Webskyite
A variety of Antigorite
This page is currently not sponsored. Click here to sponsor this page.
Christian Friedrich Martin Websky
Formula:
Mg3(Si2O5)(OH)4
Colour:
Greenish black
Lustre:
Resinous, Waxy, Greasy
Name:
Named in 1887 by Reinhard Brauns in honor of Christian Friedrich Martin Websky [July 17, 1824 Nieder-WÞstegiersdorf, Schlesien, Germany - November 27, 1886 Berlin, Germany]. Websky was initially a mining engineer, but in 1868 he was an assistant professor at the University of Breslau in Poland. In 1874, he succeeded Gustav Rose as mineralogist at the University of Berlin in Germany. He gained fame as an accomplished morphological crystallographer and he developed the concept of viscinal forms and Websky invented an improved viewing slit (Websky Slit) for optical goniometers. He also authored a book on mineralogy using mineral density as a way to help identify minerals.
Greenish black fine-grained replacement of antigorite after a calcian forsterite.
Named in 1887, but soon after (1889), webskyite was believed to be picrite or antigorite. In 1954, Kourimsky and Satava found a mineral from that locality was dominantly antigorite associated with minor chrysotile, but they did not study type material nor a specimen labeled "webskyite". Faust and Fahey (1962) found that something they thought might be webskyite was a ferroan lizardite and speculated that webskyite was a (ferroan) lizardite associated with stevensite that may, or may not, have been a replacement.
Named in 1887, but soon after (1889), webskyite was believed to be picrite or antigorite. In 1954, Kourimsky and Satava found a mineral from that locality was dominantly antigorite associated with minor chrysotile, but they did not study type material nor a specimen labeled "webskyite". Faust and Fahey (1962) found that something they thought might be webskyite was a ferroan lizardite and speculated that webskyite was a (ferroan) lizardite associated with stevensite that may, or may not, have been a replacement.
Unique Identifiers
Mindat ID:
46127 (as Webskyite)
260 (as Antigorite)
260 (as Antigorite)
Long-form identifier:
mindat:1:1:46127:0 (as Webskyite)
mindat:1:1:260:6 (as Antigorite)
mindat:1:1:260:6 (as Antigorite)
Physical Properties of Webskyite
Chemistry of Webskyite
Mindat Formula:
Mg3(Si2O5)(OH)4
Element Weights:
Elements listed:
Fluorescence of Webskyite
Not fluorescent in UV
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 Webskyite
mindat.org URL:
https://www.mindat.org/min-46127.html
Please feel free to link to this page.
Please feel free to link to this page.
Search Engines:
Mineral Dealers:
References for Webskyite
Reference List:
Localities for Webskyite
symbol to view information about a locality.
The Locality List
- This locality has map coordinates listed.
- This locality has estimated coordinates.
â - 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.
Germany | |
| Faust and Hahey (1962) |
Poland | |
| Lis et al. (1986) |
