Milk Opal
A variety of Opal
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About Milk Opal
Formula:
SiO2 · nH2O
Visit gemdat.org for Unique Identifiers
Mindat ID:
9798 (as Milk Opal)
3004 (as Opal)
3004 (as Opal)
Long-form identifier:
mindat:1:1:9798:3 (as Milk Opal)
mindat:1:1:3004:1 (as Opal)
mindat:1:1:3004:1 (as Opal)
Chemistry of Milk Opal
Mindat Formula:
SiO2 · nH2O
Elements listed:
Synonyms of Milk Opal
Other Language Names for Milk Opal
German:Milchopal
Common Associates
Associations Based on Photo Data:
| 6 photos of Milk Opal associated with 'Precious Opal' | SiO2 · nH2O |
| 5 photos of Milk Opal associated with 'Fire Opal' | SiO2 · nH2O |
| 2 photos of Milk Opal associated with 'Opal-AN' | SiO2 · nH2O |
| 1 photo of Milk Opal associated with 'Chrysoprase' | |
| 1 photo of Milk Opal associated with Wollastonite | Ca3(Si3O9) |
| 1 photo of Milk Opal associated with 'Chalcedony' | SiO2 |
| 1 photo of Milk Opal associated with 'Wax Opal' | SiO2 · nH2O |
| 1 photo of Milk Opal associated with 'Quartzite' | |
| 1 photo of Milk Opal associated with 'Manganese Oxides' |
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 Milk Opal
mindat.org URL:
https://www.mindat.org/min-9798.html
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References for Milk Opal
Reference List:
Jones, J. B., Segnit, E. R. (1971) The nature of opal I. nomenclature and constituent phases. Journal of the Geological Society of Australia, 18 (1) 57-68 doi:10.1080/00167617108728743
Localities for Milk Opal
Showing 36 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.
Angola | |
| Martins da Pedra collection |
Argentina | |
| Lemanski (n.d.) |
Australia | |
| |
| |
Austria | |
| - (n.d.) |
| Exel (1993) |
| Götzinger (1987) |
| Aufschluss 1972 (SB) |
| Meixner (1958) |
Bulgaria | |
| Marcus Vau Collection |
Colombia | |
| Daniel S Yunis | |
Germany | |
| Tröger (2009) |
Hungary | |
| |
| Koch (1985) | |
| Szakáll & Weiszburg: Telkibánya |
| |
| |
| Szakáll: Topographia Mineralogica ... |
| Society of Economic Geologists Student Chapter University of Miskolc (2018) |
| |
Poland | |
| Lis et al. (1986) |
Romania | |
| Primics (1886) |
Slovakia | |
| Koděra et al. (1986) |
| Koděra et al. (1986) |
| Koděra et al. (1986) |
| Koděra et al. (1986) | |
| Koděra et al. (1986) |
| Koděra et al. (1986) |
| Koděra et al. (1986) |
| Koděra et al. (1986) |
| Koděra et al. (1986) |
| Duda et al. (1992) |
| Koděra et al. (1986) | |
| Koděra et al. (1986) | |
USA | |
| Lewis (1933) +1 other reference |
| NBMG files No. 50600003 +1 other reference |
Belas, Luanda Province, Angola