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Chrome-Chalcedony
A variety of 'Chalcedony' [Quartz]
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About Chrome-Chalcedony
Formula:
SiO2
A variety of chalcedony colored deep green by Cr compounds. (Compare with the more common chrysoprase variety of chalcedony, which is colored by nickel.) Chrome chalcedony found in an ancient Roman gem collection may have come from one of the chromium deposits in what is now Turkey. Present commercial production comes from Zimbabwe under the trade name "mtorolite", and from Bolivia under the trade name "chiquitanita".
Visit gemdat.org for gemological information about Chrome-Chalcedony.
Visit gemdat.org for gemological information about Chrome-Chalcedony.Unique Identifiers
Mindat ID:
39291 (as Chrome-Chalcedony)
3337 (as Quartz)
3337 (as Quartz)
Long-form identifier:
mindat:1:1:39291:6 (as Chrome-Chalcedony)
mindat:1:1:3337:0 (as Quartz)
mindat:1:1:3337:0 (as Quartz)
Chemistry of Chrome-Chalcedony
Mindat Formula:
SiO2
Elements listed:
Common Impurities:
Cr,Fe,Ni
Synonyms of Chrome-Chalcedony
Common Associates
Associations Based on Photo Data:
| 1 photo of Chrome-Chalcedony associated with 'Agate' | SiO2 |
| 1 photo of Chrome-Chalcedony associated with 'Chromite-Magnesiochromite Series' |
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 Chrome-Chalcedony
mindat.org URL:
https://www.mindat.org/min-39291.html
Please feel free to link to this page.
Please feel free to link to this page.
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Mineral Dealers:
References for Chrome-Chalcedony
Reference List:
Localities for Chrome-Chalcedony
Showing 8 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.
Australia | |
| Fetherston et al. (2013) |
| Fetherston et al. (2013) |
Bolivia | |
| Hyršl et al. (1998) |
Turkey | |
| www.mindat.org (n.d.) |
| Cigdem Lule-Whipp (2006) |
Zimbabwe | |
| Bartholomew (1990) |
| Bartholomew (1990) |
| Lapidary Journal +2 other references |
Mutorashanga, Zvimba District, Mashonaland West, Zimbabwe