IMPORTANT MESSAGE. We need your support now to keep mindat.org running. Click here to find out why.
Log InRegister
Home PageAbout MindatThe Mindat ManualHistory of MindatCopyright StatusWho We AreContact UsAdvertise on Mindat
Donate to MindatCorporate SponsorshipSponsor a PageSponsored PagesMindat AdvertisersAdvertise on Mindat
Learning CenterWhat is a mineral?The most common minerals on earthInformation for Educators
Minerals by PropertiesMinerals by ChemistryAdvanced Locality SearchRandom MineralRandom LocalitySearch by minIDLocalities Near MeSearch ArticlesSearch GlossaryMore Search Options
Search For:
Mineral Name:
Locality Name:
Keyword(s):
 
The Mindat ManualAdd a New PhotoRate PhotosLocality Edit ReportCoordinate Completion ReportAdd Glossary Item
StatisticsThe ElementsUsersBooks & MagazinesMineral MuseumsMineral Shows & EventsThe Mindat DirectoryDevice Settings
Photo SearchPhoto GalleriesNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day Gallery

Chrome-Chalcedony

This page is currently not sponsored. Click here to sponsor this page.
Hide all sections | Show all sections

About Chrome-ChalcedonyHide

Formula:
SiO2
A variety of Chalcedony

A variety of chalcedony colored deep green by Cr compounds. (Compare with the more common Chrysoprase variety of chalcedony, which is colored by nickel.) Chrome chalcedony found in an ancient Roman gem collection may have come from one of the chromium deposits in what is now Turkey. Present commercial production comes from Zimbabwe under the trade name "mtorolite", and from Bolivia under the trade name "chiquitanita".

Visit gemdat.org for gemological information about Chrome-Chalcedony.


Chemical Properties of Chrome-ChalcedonyHide

Formula:
SiO2
Common Impurities:
Cr,Fe,Ni

Synonyms of Chrome-ChalcedonyHide

Common AssociatesHide

Associated Minerals Based on Photo Data:
Agate1 photo of Chrome-Chalcedony associated with Agate on mindat.org.

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 Chrome-ChalcedonyHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Phillips, G. & Brown, G. (1989) Mtorolite. Australian Gemmologist, 17, 205-207.
Webster, R. (1994) Gems: their sources, description and identification. 5th ed., P.G. Read (ed). (Butterworths, London)
Hyrsl, J. & Petrov, A. (1998) Journal of Gemmology, 26, 1, 43.

Internet Links for Chrome-ChalcedonyHide

Localities for Chrome-ChalcedonyHide

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
 
  • Western Australia
    • Meekatharra Shire
      • Sylvania Station
Fetherston, J.M., Stocklmayer, S.M., Stocklmayer, V.C. (2013) Gemstones of Western Australia. Geological Survey of Western Australia, Mineral Resources Bulletin 25, 306p.
    • Roebourne Shire
      • Karratha
Fetherston, J., Stocklmayer, S., Stocklmayer, V(2013): Gemstones of WA, Geological Survey of WA
Bolivia
 
  • Santa Cruz Department
    • Chiquitos Province
Jaroslav Hyrsl and Alfredo Petrov (1998) Journal of Gemmology, 26, 1, 43.
Turkey
 
  • Central Anatolia Region
    • Eskişehir Province
Cigdem Lule-Whipp (2006) Gems & Gemology, 42, 115.
  • Marmara Region
    • Bursa Province
      • Tavşanlı Zone
        • Harmancık
http://www.mindat.org/forum.php?read,11,393132,393132,quote=1
Zimbabwe
 
  • Manicaland
    • Mutare District (Umtali District)
Bartholomew, D. S. (1990). Base metal and industrial mineral deposits of Zimbabwe. Zimbabwe Geological Survey, Mineral Resources Survey No. 22
  • Mashonaland Central
    • Guruve District
Bartholomew, D. S. (1990). Base metal and industrial mineral deposits of Zimbabwe. Zimbabwe Geological Survey, Mineral Resources Survey No. 22
  • Mashonaland West
    • Makonde District (Lomagundi District)
Lapidary Journal, vol. 21, 1967, pp. 1188-1189
Mineral and/or Locality  
Mindat.org is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization.
Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2018, except where stated. Mindat.org relies on the contributions of thousands of members and supporters.
Privacy Policy - Terms & Conditions - Contact Us Current server date and time: October 22, 2018 04:28:18 Page generated: September 21, 2018 10:41:29
Go to top of page