Showing 1–10 of 15 results

Calcite (pairs) for Moh’s hardness

Calcite (pairs) for Moh’s hardness

Calcite for Mohs Scale of Hardness kits. Calcite is #3 on Mohs Scale of Hardness. Calcite (calcium carbonate) from Australia Approx dimensions: 3 x 3 x 1cm Vitreous to Pearly lustre White streak Hard... Read More

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Mica (biotite) pairs

Mica (biotite) pairs

Pairs of biotite mica specimens. Size 40mm X 5-10mm thick Specimen shown is representative on ... Read More

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Mica sheet

Mica sheet

Mica sheets approximately 5 x 6cm, ~1mm thick. Platy sheet crystal structure is clearly visible and crystal faces display typical uneven fracture. These pieces of mica sheet have several layers and ca... Read More

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Barite (Baryte) “desert rose”

Barite (Baryte) “desert rose”

Barite desert roses are formed in sand by crystallisation of Barium sulfate within the interstitial spaces between the grains of sand. The unique shape is a result of this crystallisation process. Exa... Read More

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Quartz (massive)

Quartz (massive)

Quartz formed by hydrothermal deposition during metamorphic processes in the Kin Kin beds.  Examination under magnification will show the specimen to be a massive sample of tiny quartz crystals displa... Read More

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Lepidolite (Lithium Mica)

Lepidolite (Lithium Mica)

Lepidolite from Brazil Lilac coloured mica mineral also known as lithium mica. Approx dimensions: 5 x 5 x 1.5cm Lepidolite is a silicate mineral and a source of lithium, rubidium and caesium. Pearly l... Read More

$30.00 inc GST Add to cart
Amethyst cluster

Amethyst cluster

Amethyst from Uruguay Approx dimensions 6.5 x 4 x 2cm Amethyst is a form of quartz (silicon dioxide) coloured purple by the presence of iron. Vitreous lustre White streak Hardness 7 Conchoidal fractur... Read More

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Black Tourmaline (Schorl)

Black Tourmaline (Schorl)

3 piece pack Crystal structure is clearly visible and some pieces also display olivine, calcite or quartz. 3 pieces per pack. Pieces are varied in size up to 4cm in length. A boron silicate mineral. V... Read More

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Quartz (Fire quartz)

Quartz (Fire quartz)

Fire quartz from Madagascar with hematite and inclusions of Limonite or Goethite that give it it’s red/pink colour. Packs of two crystals with an average size of 40mm in length. Crystal System... Read More

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Bauxite (aluminium ore)

Bauxite (aluminium ore)

Bauxite (aluminium ore) from the Alabama mine, Bauxite, Arkansas, USA showing typical nodule formation of iron and aluminium hydroxides/oxides.  Specimens are approximately 50mm across largest dimensi... Read More

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