Log In
Unnamed (Cu-S-Si-O-H)
This page is currently not sponsored. Click here to sponsor this page.
About Unnamed (Cu-S-Si-O-H)
Formula:
Cu-S-Si-O-H
Cu:S:Si ratio is roughly 10:1:1, sometimes also ~5:1:1, and somewhat variable.
May contain very minor to trace amounts of Al, As, P, Sb, Fe, Cl, Mg.
May contain very minor to trace amounts of Al, As, P, Sb, Fe, Cl, Mg.
Colour:
Turquois to greenish blue
Lustre:
Vitreous, Pearly
Anthropogenic phase found in ancient slags (Kolitsch & Brandstätter, 2012; Kolitsch, unpublished analyses).
Tiny hexagonal plates, forming rosettes or crusts. A turquoise to very pale turquoise colour (depending on crystal thickness) appears to be characteristic. The lustre is slightly pearly to glassy.
SXRD studies reveal apparent stacking disorder.
Visually similar to chalcophyllite. May be more wide-spread.
Tiny hexagonal plates, forming rosettes or crusts. A turquoise to very pale turquoise colour (depending on crystal thickness) appears to be characteristic. The lustre is slightly pearly to glassy.
SXRD studies reveal apparent stacking disorder.
Visually similar to chalcophyllite. May be more wide-spread.
Unique Identifiers
Mindat ID:
42938
Long-form identifier:
mindat:1:1:42938:0
Physical Properties of Unnamed (Cu-S-Si-O-H)
Chemistry of Unnamed (Cu-S-Si-O-H)
Mindat Formula:
Cu-S-Si-O-H
Cu:S:Si ratio is roughly 10:1:1, sometimes also ~5:1:1, and somewhat variable.
May contain very minor to trace amounts of Al, As, P, Sb, Fe, Cl, Mg.
Cu:S:Si ratio is roughly 10:1:1, sometimes also ~5:1:1, and somewhat variable.
May contain very minor to trace amounts of Al, As, P, Sb, Fe, Cl, Mg.
Element Weights:
Common Associates
Associations Based on Photo Data:
| 6 photos of Unnamed (Cu-S-Si-O-H) associated with Connellite | Cu19(SO4)(OH)32Cl4 · 3H2O |
| 3 photos of Unnamed (Cu-S-Si-O-H) associated with Brochantite | Cu4(SO4)(OH)6 |
| 1 photo of Unnamed (Cu-S-Si-O-H) associated with Cerussite | PbCO3 |
| 1 photo of Unnamed (Cu-S-Si-O-H) associated with Parnauite | Cu9(AsO4)2(SO4)(OH)10 · 7H2O |
| 1 photo of Unnamed (Cu-S-Si-O-H) associated with Anglesite | PbSO4 |
| 1 photo of Unnamed (Cu-S-Si-O-H) associated with Malachite | Cu2(CO3)(OH)2 |
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 (Cu-S-Si-O-H)
mindat.org URL:
https://www.mindat.org/min-42938.html
Please feel free to link to this page.
Please feel free to link to this page.
Search Engines:
Mineral Dealers:
References for Unnamed (Cu-S-Si-O-H)
Reference List:
Localities for Unnamed (Cu-S-Si-O-H)
Showing 6 localities.
symbol to view information about a locality.
The 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.
Austria | |
| Kolitsch (2016) |
| Kolitsch et al. (2014) |
| Kolitsch et al. (2012) |
France | |
| Chollet Pascal Collection +1 other reference |
Germany | |
| Anneliese Schwarz collection (visually identified by Uwe Kolitsch) +1 other reference |
Portugal | |
| Uwe Kolitsch (SXRD and EDS analyses) +1 other reference |
Les Rats Mine slag dumps, Le Crozet, Roanne, Loire, Auvergne-Rhône-Alpes, France