Log InRegister
Quick Links : The Mindat ManualThe Rock H. Currier Digital LibraryMindat Newsletter [Free Download]
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 EducatorsMindat ArticlesThe ElementsThe Rock H. Currier Digital LibraryGeologic Time
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
Mining CompaniesStatisticsUsersMineral MuseumsClubs & OrganizationsMineral Shows & EventsThe Mindat DirectoryDevice SettingsThe Mineral Quiz
Photo SearchPhoto GalleriesSearch by ColorNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day GalleryPhotography

Unnamed (Calcium Chromium Oxide Postspinel)

A material that is NOT an approved mineral species
This page is currently not sponsored. Click here to sponsor this page.
Formula:
CaCr2O4
Crystal System:
Orthorhombic
Found in inclusions within lower-mantle diamond. Possibly the Cr analogue of harmunite.

Coexists with parascandolaite, 'Unnamed (Mg analogue of xieite)', 'ferropericlase', 'Unnamed (Orthorhombic Polymorph of Magnesium Oxide)', calcite, apatite group, spinel group, periclase, wüstite, and probably nitrogen-bearing yarlongite.

Compare the compositionally similar chromatite.


Hide all sections | Show all sections

Unique IdentifiersHide

Mindat ID:
51711
Long-form identifier:
mindat:1:1:51711:7
GUID
(UUID V4):
cdd1b3a4-b32b-46f1-afae-667df53af1cd

Chemical Properties of Unnamed (Calcium Chromium Oxide Postspinel)Hide

Formula:
CaCr2O4
Elements listed:
Ca, Cr, O - search for minerals with similar chemistry

Crystallography of Unnamed (Calcium Chromium Oxide Postspinel)Hide

Crystal System:
Orthorhombic

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 Unnamed (Calcium Chromium Oxide Postspinel)Hide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Kaminsky, F. V., Wirth, R., Schreiber, A. (2015): A microinclusion of lower-mantle rock and other minerals and nitrogen lower-mantle inclusions in a diamond. Canadian Mineralogist: 53(1): 83-104

Internet Links for Unnamed (Calcium Chromium Oxide Postspinel)Hide

Localities for Unnamed (Calcium Chromium Oxide Postspinel)Hide

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 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). 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.
Brazil
 
  • Mato Grosso
    • Juína
      • Sorriso river
Kaminsky, F.V., Wirth, R., Schreiber, A. (2015): A microinclusion of lower-mantle rock and other minerals and nitrogen lower-mantle inclusions in a diamond. Canadian Mineralogist: 53(1): 83-104
Quick NavTopUnique IdentifiersChemical Properties Crystallography Other InformationReferences Internet Links Localities Locality List
 
Mineral and/or Locality  
Mindat Discussions Facebook Logo Instagram Logo Discord Logo
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 1993-2024, except where stated. Most political location boundaries are © OpenStreetMap contributors. Mindat.org relies on the contributions of thousands of members and supporters. Founded in 2000 by Jolyon Ralph.
Privacy Policy - Terms & Conditions - Contact Us / DMCA issues - Report a bug/vulnerability Current server date and time: April 25, 2024 20:41:17 Page updated: May 19, 2023 05:21:46
Go to top of page