Erythrite - Mt Cobalt Mine, Mt Isa QLD | Aussie Mineral Hub
Australian Minerals


Erythrite from Mount Cobalt mine, Mt Isa QLD


    Erythrite is a bright red-purple colour cobalt arsenic, oxygen and hydrogen mineral. This colourful characteristic makes it very noticeable and easy to identify. This specimen was mined from Mount Cobalt mine, Mt Isa QLD Australia.

    Unfortunately this specimen is slightly damaged with a crack in the middle but is still in-tact on the matrix. I am looking to acquire a new specimen that has nice transparent crystals.

    I acquired this specimen from Greg from Blue Gems at the August 2016 Sydney Crystal Show.

    Specimen Details

    Chemical Formula: Co3(AsO4)2 · 8H2O

    ID #: JG0007

    Colour: Crystal forms are generally a deep redish purple, this specimen is more of a thin crust form which is bright pink

    Hardness: 1.5 – 2.5

    Acquisition Date: 06/08/2016

    Crystal System: Monoclinic

    Lustre: Vitreous. This thin crust specimen is more a silky lustre

    Dimensions: 74mm x 38mm x 25mm

    Weight: 63g

    Location: Mount Cobalt mine, Mt Isa QLD Australia

    Rarity of Mineral

    Very Rare

    Did you know!?
    Many miners refer to Erythrite as “Cobalt Bloom”. Larger size crystals are quite uncommon and not necessarily that amazing.

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