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Black Opal

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About Black OpalHide

Formula:
SiO2 · nH2O
A variety of Precious Opal

The most precious kind of opal, this variety of precious opal has a dark background colour.

Visit gemdat.org for gemological information about Black Opal.


Chemical Properties of Black OpalHide

Formula:
SiO2 · nH2O

Synonyms of Black OpalHide

Other Language Names for Black OpalHide

Simplified Chinese:黑蛋白石

Common AssociatesHide

Associated Minerals Based on Photo Data:
11 photos of Black Opal associated with Precious OpalSiO2 · nH2O
6 photos of Black Opal associated with OpalSiO2 · nH2O
5 photos of Black Opal associated with Honey OpalSiO2 · nH2O
4 photos of Black Opal associated with Harlequin Opal

Other InformationHide

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 Black OpalHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
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 Black OpalHide

Localities for Black OpalHide

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.

Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for 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). 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 (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
Australia
Seidler, Ned (1964) Gems and jewelry. The Odyssey Press, New York, 44 pages.; Gübelin, E., Wolgensinger, M. (1976) Edelstenen. Uitgeverij Artis, Brussel (in Dutch).
  • New South Wales
    • Finch Co.
Mason, A. (1976) The world of Rocks and Minerals. New York, N.Y., Larousse & Co., 108 pages.; Clifford, J. et.al. (2007) Opal - The Phenomenal Gemstone. Mineral Monograph No.10. Lithographie, LLC. East Hampton, Connecticut, USA, 112 pages.
Cram, L. (2004): A Journey with Colour, Vol 2, Part B - A History of Lightning Ridge Opal 1873-2003
- Cram, L. (2004): A Journey with Colour, Vol 2, Part B - A History of Lightning Ridge Opal 1873-2003, Len Cram.
- Cram, L. (2004): A Journey with Colour, Vol 2, Part B - A History of Lightning Ridge Opal 1873-2003, Len Cram.
- Smith, E. & R. (1999): Black Opal Fossils of Lightning Ridge - Treasures from the Rainbow Billabong, Kangaroo Press, East Roseville. - Cram, L. (2004): A Journey with Colour, Vol 2, Part B - A History of Lightning Ridge Opal 1873-2003, Len Cram.
Smith, E. & R. (1999): Black Opal Fossils of Lightning Ridge - Treasures from the Rainbow Billabong, Kangaroo Press, East Roseville.
Cram, L. (2004): A Journey with Colour, Vol 2, Part B - A History of Lightning Ridge Opal 1873-2003, Len Cram.
Cram, L. (2004): A Journey with Colour, Vol 2, Part B - A History of Lightning Ridge Opal 1873-2003, Len Cram.
Smith, E. & R. (1999): Black Opal Fossils of Lightning Ridge - Treasures from the Rainbow Billabong, Kangaroo Press, East Roseville.
Smith, E. & R. (1999): Black Opal Fossils of Lightning Ridge - Treasures from the Rainbow Billabong, Kangaroo Press, East Roseville.
Cram, L. (2004): A Journey with Colour, Vol 2, Part B - A History of Lightning Ridge Opal 1873-2003, Len Cram.
Smith, E. & R. (1999): Black Opal Fossils of Lightning Ridge - Treasures from the Rainbow Billabong, Kangaroo Press, East Roseville.
Smith, E. & R. (1999): Black Opal Fossils of Lightning Ridge - Treasures from the Rainbow Billabong, Kangaroo Press, East Roseville.
Cram, L. (2004): A Journey with Colour, Vol 2, Part B - A History of Lightning Ridge Opal 1873-2003, Len Cram.
Cram, L. (2004): A Journey with Colour, Vol 2, Part B - A History of Lightning Ridge Opal 1873-2003, Len Cram.
Smith, E. & R. (1999): Black Opal Fossils of Lightning Ridge - Treasures from the Rainbow Billabong, Kangaroo Press, East Roseville.
Smith, E. & R. (1999): Black Opal Fossils of Lightning Ridge - Treasures from the Rainbow Billabong, Kangaroo Press, East Roseville.
Cram, L. (2004): A Journey with Colour, Vol 2, Part B - A History of Lightning Ridge Opal 1873-2003
Smith, E. & R. (1999): Black Opal Fossils of Lightning Ridge - Treasures from the Rainbow Billabong, Kangaroo Press, East Roseville
Cram, L. (2004): A Journey with Colour, Vol 2, Part B - A History of Lightning Ridge Opal 1873-2003, Len Cram.
Cram, L. (2004): A Journey with Colour, Vol 2, Part B - A History of Lightning Ridge Opal 1873-2003, Len Cram.
Cram, L. (2004): A Journey with Colour, Vol 2, Part B - A History of Lightning Ridge Opal 1873-2003, Len Cram.
Cram, L. (2004): A Journey with Colour, Vol 2, Part B - A History of Lightning Ridge Opal 1873-2003, Len Cram.
Cram, L. (2004): A Journey with Colour, Vol 2, Part B - A History of Lightning Ridge Opal 1873-2003, Len Cram.
Cram, L. (2004): A Journey with Colour, Vol 2, Part B - A History of Lightning Ridge Opal 1873-2003, Len Cram.
Cram, L. (2004): A Journey with Colour, Vol 2, Part B - A History of Lightning Ridge Opal 1873-2003, Len Cram.
Smith, E. & R. (1999): Black Opal Fossils of Lightning Ridge - Treasures from the Rainbow Billabong, Kangaroo Press, East Roseville.
  • South Australia
    • North West Province
      • Mintabie district
www.mineshaft.com.au/1.htm.
    • Stuart Shelf
      • Andamooka Ranges
Mason, A. (1976) The world of Rocks and Minerals. New York, N.Y., Larousse & Co., 108 pages.; Clifford, J. et.al. (2007) Opal - The Phenomenal Gemstone. Mineral Monograph No.10. Lithographie, LLC. East Hampton, Connecticut, USA, 112 pages.
Brazil
 
  • Piauí
    • Pedro II
Sauer, J.R. (1982) Brazil, Paradise of Gemstones. Gemological Institute of America, 135 pp. (p. 70).
Honduras
 
  • Lempira Department
    • Erandique
Wayne Osborne Collection
N. Jb. Mineral. Abh. 186 (2009) 11-20.
Hungary
www.giant.net.au/users/bmi/prof.htm.
  • Borsod-Abaúj-Zemplén County
    • Gönc District
      • Telkibánya
    • Sárospatak District
      • Erdőhorváti
Szakáll & Gatter: Hungarian Mineral Species, 1993
      • Komlóska
Koch: Minerals of Hungary, 1985
    • Szerencs District
      • Legyesbénye
Szakáll: Top.Min. Hun.
      • Megyaszó
      • Monok
Szakáll: Topographia Mineralogica Hungariae III.
    • Tokaj District
      • Tarcal
Indonesia
 
  • Banten Province
    • Lebak Regency
Sun, T. T., Mok, P. C., Paul, S. L., Paramita, M., Arps, C. E., Atichat, W., ... & Wijaya, K. (2008). Precious Opal from Java (Gemmological properties, micro-and nano-structures) Date: 10-05-2008.
USA
 
  • Nevada
    • Humboldt Co.
[www.johnbetts-fineminerals.com]
        • WRT Stonetree group ("Dominion Opal Mine")
Christopher Wentzell collection
 
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