Quinzite Opal
A variety of Opal
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About Quinzite Opal
Formula:
SiO2 · nH2O
Name:
Originally described from Quincy-sur-Cher, Bourges, Cher, Centre, France.
The origin of the word "opal" is uncertain. It may be from the Sanskrit "upala", meaning "stone" or "precious stone" or from opalus, the ancient Latin name for the gem (Pliny the Elder, 75-79). Pliny may have also referred to the gem as paederos, but a modern commentary by Kostov (2008) questions if that name was actually applied to the opal in the modern sense.
The origin of the word "opal" is uncertain. It may be from the Sanskrit "upala", meaning "stone" or "precious stone" or from opalus, the ancient Latin name for the gem (Pliny the Elder, 75-79). Pliny may have also referred to the gem as paederos, but a modern commentary by Kostov (2008) questions if that name was actually applied to the opal in the modern sense.
Rose to pink Opal. Originally described from Quincy-sur-Cher, Bourges, Cher, Centre, France.
The colour comes from a fossil organic pigment, 2,8-dipropylxanthenoxanthene-4,10-quinone.
The colour comes from a fossil organic pigment, 2,8-dipropylxanthenoxanthene-4,10-quinone.
Unique Identifiers
Mindat ID:
9819 (as Quinzite Opal)
3004 (as Opal)
3004 (as Opal)
Long-form identifier:
mindat:1:1:9819:5 (as Quinzite Opal)
mindat:1:1:3004:1 (as Opal)
mindat:1:1:3004:1 (as Opal)
Chemistry of Quinzite Opal
Mindat Formula:
SiO2 · nH2O
Elements listed:
Synonyms of Quinzite Opal
Other Language Names for Quinzite Opal
German:Quincyt
Common Associates
Associations Based on Photo Data:
| 7 photos of Quinzite Opal associated with Sepiolite | Mg4(Si6O15)(OH)2 · 6H2O |
| 1 photo of Quinzite Opal associated with 'Chalcedony' | SiO2 |
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 Quinzite Opal
mindat.org URL:
https://www.mindat.org/min-9819.html
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References for Quinzite Opal
Reference List:
Localities for Quinzite Opal
Showing 2 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.
France | |
| Allan W. Eckert (1997) |
USA | |
|
Quincy, Vierzon, Cher, Centre-Val de Loire, France