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Milk Opal

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Milk Opal

Belas City Council, Luanda Province, Angola
Milk Opal

Ósva Valley, Telkibánya, Zemplén Mts, Borsod-Abaúj-Zemplén Co., Hungary
Milk Opal

Hosszú Hill, Megyaszó, Zemplén Mts, Borsod-Abaúj-Zemplén Co., Hungary
Milk Opal

Belas City Council, Luanda Province, Angola
Milk Opal

Ósva Valley, Telkibánya, Zemplén Mts, Borsod-Abaúj-Zemplén Co., Hungary
Milk Opal

Hosszú Hill, Megyaszó, Zemplén Mts, Borsod-Abaúj-Zemplén Co., Hungary
Milk Opal

Belas City Council, Luanda Province, Angola
Milk Opal

Ósva Valley, Telkibánya, Zemplén Mts, Borsod-Abaúj-Zemplén Co., Hungary
Formula:
SiO2 · nH2O
A variety of Opal

A white Opal.

Visit gemdat.org for gemological information about Milk Opal.


Classification of Milk Opal

Chemical Properties of Milk Opal

Formula:
SiO2 · nH2O
Elements listed in formula:
H, O, Si - search for minerals with similar chemistry

Other Names for Milk Opal

Synonyms:

Porcelain Opal

Name in Other Languages:
German:Milchopal

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.

References for Milk Opal

Reference List:
Jones, J.B. and E.R. Segnit (1971), The nature of opal. I Nomenclature and constituent phases. Journal of the Geological Society of Australia: 18: 57-68.

Anal. Chem. Acta (1994): 286: 107.

Lapis Extra No. 10, Opal (1996).

Internet Links for Milk Opal

mindat.org URL:
https://www.mindat.org/min-9798.html
Please feel free to link to this page.
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    • Localities for Milk Opal

    This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.
    (TL) indicates type locality for a valid mineral species. (FRL) indicates first recorded locality for everything else. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
    Angola
     
    • Luanda Province
    		Martins da Pedra collection
    Argentina
     
    • Córdoba
      • San Alberto Department
        • Mina Clavero
    		C. Lemanski, Jr. (re-entry of lost Mindat data).
    Australia
     
    • South Australia
      • Central North
      • North West Province
        • Mintabie district
    Austria
     
    • Lower Austria
      • Waldviertel
        • Mühldorf
    		Natural History Museum Vienna collection
        • St Leonhard am Hornerwald
          • Dürrenberg (Dürnberg)
    		R. Exel: Die Mineralien und Erzlagerstätten Österreichs (1993)
    • Styria
      • Bad Gleichenberg
        • Gossendorf
    		Meixner, H. (1958)
        • Klause
    		Aufschluss 1972(SB), 52-55
    Bulgaria
     
    • Yambol Oblast
      • Tundzha Obshtina
    		Marcus Vau Collection
    Colombia
     
    Daniel S Yunis
    Germany
     
    • Saxony
      • Erzgebirge
        • Eibenstock
          • Blauenthal
    		Tröger, S. (2009): Der Steinbruch Fahsel im Eibenstocker Granit, Westerzgebirge. Lapis 34 (6), 49-52.
    Hungary
     
    • Borsod-Abaúj-Zemplén Co.
      • Zemplén Mts (Tokaj Mts)
        • Gönc
    Koch: Minerals of Hungary, 1985
        • Megyaszó
        • Monok
    		Szakáll: Topographia Mineralogica Hungariae III.
        • Sárospatak
        • Tállya
        • Telkibánya
    		Szakáll-Weiszburg: Telkibánya
    Romania
     
    • Hunedoara Co.
    		Primics, G. (1886): Das Vorkommen der derben Quarzvarietäten bei Tekerő. Földtani Közlöny, 16, 347-353.
    Slovakia
     
    • Banská Bystrica Region
      • Banská Bystrica Co.
        • Hrochoť
    		Koděra, M. et al., 1986 a 1990 : Topografická mineralógia Slovenska, diel 1- 3, Veda – Vydavateľstvo SAV, Bratislava, 1990, 1 – 1590k
        • Poniky
    		Koděra, M. et al., 1986 a 1990 : Topografická mineralógia Slovenska, diel 1- 3, Veda – Vydavateľstvo SAV, Bratislava, 1990, 1 – 1590k
    Koděra, M. et al., 1986 a 1990 : Topografická mineralógia Slovenska, diel 1- 3, Veda – Vydavateľstvo SAV, Bratislava, 1990, 1 – 1590
    Koděra, M. et al., 1986 a 1990 : Topografická mineralógia Slovenska, diel 1- 3, Veda – Vydavateľstvo SAV, Bratislava, 1990, 1 – 1590
      • Detva Co.
    		Koděra, M., Andrusovová-Vlčeková, G., Belešová, O., Briatková, D., Dávidová, Š., Fejdiová, V., Hurai, V., Chovan, M., Nelišerová, E., Ženiš, P. (1986-1990): Topografická mineralógia Slovenska. I-III. Veda, Bratislava, 1592 p.
      • Krupina Co.
        • Hontianske Nemce
    		Koděra, M. et al., 1986 a 1990 : Topografická mineralógia Slovenska, diel 1- 3, Veda – Vydavateľstvo SAV, Bratislava, 1990, 1 – 1590k
      • Žiar nad Hronom Co.
    		Koděra, M. et al., 1986 a 1990 : Topografická mineralógia Slovenska, diel 1- 3, Veda – Vydavateľstvo SAV, Bratislava, 1990, 1 – 1590
    • Košice Region
      • Košice Co.
    		Koděra, M. et al., 1986 a 1990 : Topografická mineralógia Slovenska, diel 1- 3, Veda – Vydavateľstvo SAV, Bratislava, 1990, 1 – 1590
    Koděra, M. et al., 1986 a 1990 : Topografická mineralógia Slovenska, diel 1- 3, Veda – Vydavateľstvo SAV, Bratislava, 1990, 1 – 1590
    • Prešov Region
      • Prešov Co.
        • Červenica
          • Dubník
    		Koděra, M. et al., 1986 a 1990 : Topografická mineralógia Slovenska, diel 1- 3, Veda – Vydavateľstvo SAV, Bratislava, 1990, 1 – 1590
    Koděra, M. et al., 1986 a 1990 : Topografická mineralógia Slovenska, diel 1- 3, Veda – Vydavateľstvo SAV, Bratislava, 1990, 1 – 1590
    USA
     
    • California
      • Kern Co.
        • Mojave-Rosamond District (Mojave District)
          • Rosamond
    		Lewis, W. Scott (1933), Occurrences of opal in California: Rocks & Minerals: 8: 36-37; Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 282.
    • Nevada
      • Humboldt Co.
        • Virgin Valley
    		NBMG files No. 50600003; Nevada Bureau of Mines and Geology NBMG Open-File Report 96-3 By Stephen B. Castor, Christopher D. Henry, Lisa A. Shevenell
    Mineral and/or Locality  
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