Dioptase

Dioptase is emerald-green to bluish-green copper cyclosilicate mineral. Its luster is vitreous to sub-adamantine with the chemical formula is CuSiO3·H2O. It has a hardness of 5 on the Moh scale with a specific gravity of 3.28–3.35 and it has two perfect and one very good cleavage directions. Dioptase is very fragile and must be handled with great care. It is a trigonal mineral, forming 6-sided crystals that are terminated by rhombohedra.

Our specimens are primarily from Congo, but we occasionally get some pieces from the long closed Tsumeb mine which are highly sought after by collectors.

Showing all 30 results

  • One Box Of 12 Dioptase Mineral Specimen From Congo

    $120.00     Add to cart

  • One Box Of 15 Dioptase Mineral Specimen From Congo

    $175.00     Add to cart

  • Large Dioptase Mineral Specimen From Congo

    $1,500.00     Add to cart

  • Dioptase Mineral Specimen From Congo

    $105.00     Add to cart

  • Medium Dioptase Mineral Specimen From Congo

    $750.00     Add to cart

  • Medium Dioptase Mineral Specimen from Congo

    $750.00     Add to cart

  • Dioptase Mineral Specimen From Congo

    $250.00     Add to cart

  • Dioptase Mineral Specimen From Congo

    $250.00     Add to cart

  • Medium Dioptase Mineral Specimen From congo

    $750.00     Add to cart

  • Large Dioptase Mineral Specimen From Congo

    $1,500.00     Add to cart

  • Medium-Large Dioptase Mineral Specimen From Congo

    $175.00     Add to cart

  • Medium-Large Dioptase Mineral Specimen from Congo

    $350.00     Add to cart

  • Large Dioptase Mineral Specimen from Congo

    $500.00     Add to cart

  • Half Kg Fluorite Octahedrons From Riemvasmaak, Orange River, South Africa (ALL WELCOME, LOTS IN STOCK)

    $35.00     Add to cart

  • Spectacular, Large Dioptase Mineral Specimen from Congo

    $350.00     Add to cart

  • Gorgeous, Large Dioptase Mineral Specimen from the Congo

    $225.00     Add to cart

  • Stunning, Small Dioptase/Chrysocolla/Malachite/Calcite Mineral Specimen from Congo

    $22.00     Add to cart

  • One Box of 15 Fantastic Dioptase Mineral Specimens (with Secondary Minerals) from Kambove, Congo

    $350.00     Add to cart

  • Wonderful Dioptase/Chrysocolla/Calcite Mineral Specimen from Kambove, Congo

    $54.00     Add to cart

  • Beautiful, Large Dioptase/Chrysocolla/Calcite Mineral Specimen from Congo

    $92.00     Add to cart

  • Delightful Dioptase/Chrysocolla/Calcite Mineral Specimen from Kambove, Congo

    $49.00     Add to cart

  • One box of 12 Dioptase Mineral Specimens(with secondary minerals) from Congo

    $239.00     Add to cart

  • One Pretty Dioptase/Shattuckite/Calcite Mineral Specimen from Congo

    $60.00     Add to cart

  • Gorgeous Dioptase/Calcite Mineral Specimen from Congo

    Sale! $126.00 $63.00     Add to cart

  • One Box of 12 Dioptase/Chrysocolla/Calcite Mineral Specimens from Kambove, Congo

    $195.00     Add to cart

  • One Box of 6 Stunning Dioptase/Chrysocolla/Calcite Mineral Specimens from Kambove, Congo

    $110.00     Add to cart

  • Beautiful Dioptase/Shattuckite/Chrysocolla Mineral Specimen from Congo

    $60.00     Add to cart

  • Pretty Dioptase Mineral Specimen from Congo

    $35.77     Add to cart

  • One Box of 6 Stunning Dioptase Dominant Mineral Specimens from Kambove, Congo

    $80.00     Add to cart

  • Delightful Dioptase Mineral Specimen from Congo

    Sale! $52.00 $26.00     Add to cart

Showing all 30 results