Capped Quartz
A variety of Quartz
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About Capped Quartz
Formula:
SiO2
Quartz crystals made of loosely connected or easily separable parts that correspond to different growth phases. This is caused by the deposition of thin continuous layers of, for example, clay minerals, on the crystal during growth. The typical result is a crystal tip that can be taken off of the crystal and that is shaped like a little cap.
ID requirements: A crystal with zones separated by inclusions, however dense they are, is not a capped quartz. To be called a capped quartz on mindat, the crystal has to show its "cap" detached. It is sufficient to show only the cap, if the cap shows an imprint of a crystal tip on its bottom side.
ID requirements: A crystal with zones separated by inclusions, however dense they are, is not a capped quartz. To be called a capped quartz on mindat, the crystal has to show its "cap" detached. It is sufficient to show only the cap, if the cap shows an imprint of a crystal tip on its bottom side.
Unique Identifiers
Mindat ID:
888 (as Capped Quartz)
3337 (as Quartz)
3337 (as Quartz)
Long-form identifier:
mindat:1:1:888:6 (as Capped Quartz)
mindat:1:1:3337:0 (as Quartz)
mindat:1:1:3337:0 (as Quartz)
Pronunciation of Capped Quartz
Pronunciation:
| Play | Recorded by | Country |
|---|---|---|
| Jolyon Ralph | United Kingdom |
Chemistry of Capped Quartz
Mindat Formula:
SiO2
Elements listed:
Other Language Names for Capped Quartz
German:Kappenquarz
Common Associates
Associated Minerals Based on Photo Data:
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 Capped Quartz
mindat.org URL:
https://www.mindat.org/min-888.html
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References for Capped Quartz
Reference List:
Localities for Capped Quartz
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.
Australia | |
| Ralph Bottrill collection |
Austria | |
| Niedermayr et al. (1995) |
| Strasser (1989) |
| Strasser (1989) |
Germany | |
| Lapis 1980 (3) |
| Weiß (1990) |
| Weiß (1990) |
| Weiß (1990) |
| Weiß (1990) |
| Schnorrer-Köhler (1988) |
| Lapis 1988 (1) |
| Weiß (1990) |
| Weiß (1990) |
| Matthias Kahl collection |
UK | |
| Chris Popham Collection |
|
Virtuous Lady Mine, Buckland Monachorum, West Devon, Devon, England, UK