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 EducatorsMindat Articles
Minerals by PropertiesMinerals by ChemistryAdvanced Locality SearchRandom MineralRandom LocalitySearch by minIDLocalities Near MeSearch ArticlesSearch GlossaryMore Search Options
Search For:
Mineral Name:
Locality Name:
The Mindat ManualAdd a New PhotoRate PhotosLocality Edit ReportCoordinate Completion ReportAdd Glossary Item
Mining CompaniesStatisticsThe ElementsUsersBooks & MagazinesMineral MuseumsMineral Shows & EventsThe Mindat DirectoryDevice Settings
Photo SearchPhoto GalleriesNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day Gallery


This page is currently not sponsored. Contact us for sponsorship opportunities.
Alumina, or aluminium oxide (aluminum oxide), is better known in the mineral world as corundum.

Because of its high melting point and resistance to chemicals it is NOT used as an ore of aluminium - that is bauxite.

Hide all sections | Show all sections

Properties of AluminaHide

3.98 - 4.1 g/cm3 (Measured)    3.997 g/cm3 (Calculated)

Uses of AluminaHide

It has many uses commercially, depending on the grade of material that is being mined:

As an abrasive - see emery.
As a refactory material - due to the high melting point of 2,072 °C (3,762 °F)
As a gemstone - ruby and sapphire are gem varieties of corundum.

Other Commodities associated with Alumina *Hide

CommodityAssociated LocalitiesTotal Localities% Association (commodity)% Association (Alumina)
Gemstones35140.58% of all Gemstones deposits have Alumina.7.50% of all Alumina deposits have Gemstones.
Gold220,6610.01% of all Gold deposits have Alumina.5.00% of all Alumina deposits have Gold.
Asbestos22040.98% of all Asbestos deposits have Alumina.5.00% of all Alumina deposits have Asbestos.
Vermiculite21991.01% of all Vermiculite deposits have Alumina.5.00% of all Alumina deposits have Vermiculite.
Copper18,1570.01% of all Copper deposits have Alumina.2.50% of all Alumina deposits have Copper.
Molybdenum11,0050.10% of all Molybdenum deposits have Alumina.2.50% of all Alumina deposits have Molybdenum.
Kyanite11370.73% of all Kyanite deposits have Alumina.2.50% of all Alumina deposits have Kyanite.
Pyrophyllite1714.29% of all Pyrophyllite deposits have Alumina.2.50% of all Alumina deposits have Pyrophyllite.
* in exploitable quantities, based on associations listed on mindat.org

Deposits of AluminaHide

This map shows a selection of deposits 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.
  • Colorado
    • Gilpin Co.
      • Independence District (Perigo District)
  • Idaho
    • Adams Co.
      • Meadows District
    • Idaho Co.
      • Warren District (Marshall District)
  • Montana
    • Beaverhead Co.
      • Ruby Range
    • Deer Lodge Co.
      • Orofino District
        • Dry Cottonwood Creek
    • Gallatin Co.
    • Granite Co.
      • Rock Creek District
      • Sapphire Mountains Area
    • Madison Co.
    • Powell Co.
      • Zosell District (Emery District)
  • North Carolina
    • Jackson Co.
      • Sapphire Valley
    • Macon Co.
      • Cowee Valley
        • Ellijay District
    • Madison Co.
      • Canton-Democrat
    • Swain Co.
    • Transylvania Co.
      • Lake Toxaway
  • Oregon
    • Douglas Co.
    • Linn Co.
    • Wallowa Co.
      • Wallowa Range District
  • South Carolina
    • Cherokee Co.
      • Gaffney Area
    • Edgefield Co.
    • York Co.
      • Clover Area
  • Virginia
    • Henry Co.
  • Wyoming
    • Albany Co.
    • Carbon Co.
    • Fremont Co.
Mineral and/or Locality  
Mindat.org is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization. Public Relations by Blytheweigh.
Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2019, 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: February 18, 2019 00:53:56 Page generated: February 11, 2019 04:20:58
Go to top of page