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⇱ Gold Opal: Mineral information, data and localities.

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Gold Opal

A variety of Opal
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About Gold OpalHide

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Formula:
SiO2 · nH2O
Name:
E.F.Glocker (1947) Gen. Spec. Min. Sec. Ord. Nat. Dig. Synopsis p.131
A name for yellow or gold-coloured opal. See also Honey Opal.


Unique IdentifiersHide

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Mindat ID:
7540 (as Gold Opal)
3004 (as Opal)
Long-form identifier:
mindat:1:1:7540:0 (as Gold Opal)
mindat:1:1:3004:1 (as Opal)

Chemistry of Gold OpalHide

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Mindat Formula:
SiO2 · nH2O
Element Weights:
Element% weight
O61.458 %
Si35.961 %
H2.581 %

Calculated from ideal end-member formula.

Other InformationHide

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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 Gold OpalHide

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mindat.org URL:
https://www.mindat.org/min-7540.html
Please feel free to link to this page.

References for Gold OpalHide

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Reference List:

Localities for Gold OpalHide

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ⓘ - Click for references and further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. 👁 Image
- Good crystals or important locality for species. 👁 Image
- World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (e.g. from pseudomorphs).

All localities listed without proper references should be considered as questionable.
Hungary
  • Borsod-Abaúj-Zemplén County
    • Sárospatak District
Quick NavTopAbout Gold OpalUnique IdentifiersChemistry Other InformationInternet Links References Localities
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To cite: Ralph, J., Von Bargen, D., Martynov, P., Zhang, J., Que, X., Prabhu, A., Morrison, S. M., Li, W., Chen, W., & Ma, X. (2025). Mindat.org: The open access mineralogy database to accelerate data-intensive geoscience research. American Mineralogist, 110(6), 833–844. doi:10.2138/am-2024-9486.
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