Showing 1–10 of 21 results

Amygoidal Basalt

Amygoidal Basalt

Amygoidal basalt from the Main Range volcanic group which overlies the Marburg (sedimentary) Formation, South East Queensland. ... Read More

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Bowen granite

Bowen granite

Even grained granite specimen from near Bowen, Queensland. Pink potassium feldspar, cream plagioclase, feldspar, small flakes of biotite.  This specimen is a textbook example of granite for teaching e... Read More

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Dragonglass

Dragonglass

Dragonglass from the fires of the earth The Maesters call it ‘obsidian’ “Obsidian. Forged in the fires of the gods, far below the earth. The children of the forest hunted with that, thousands of years... Read More

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Castle Hill Granite

Castle Hill Granite

Dark pink even grained granite. Pink potassium feldspar, cream plagioclase, feldspar, small flakes of biotite. Also green chlorite, quartz and feldspar crystals. Thought to be early Permian in age. Im... Read More

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Tuff

Tuff

Late Triassic tuff from the North Arm Volcanic Group. Images are examples of specimens only. Size and shape may vary. Specimens are usually no smaller than 75mm in one dimension. ... Read More

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Obsidian, Large Shelf Specimen 2kg

Obsidian, Large Shelf Specimen 2kg

Large Obsidian shelf specimen weighing 2kg from the Tarawera volcanic eruption of 1886 in the Bay of Plenty Region, New Zealand. Formed during the eruption of Mt Tarawera near Rotorua in June 1886 at ... Read More

$150.00 inc GST Add to cart
Obsidian, large size specimen

Obsidian, large size specimen

Large Obsidian specimen for the classroom from the Tarawera volcanic eruption of 1886 in the Bay of Plenty Region, New Zealand. Formed during the eruption of Mt Tarawera near Rotorua in June 1886 at t... Read More

$30.00 inc GST Add to cart
Obsidian, small size specimen

Obsidian, small size specimen

Small Obsidian specimen for the classroom from the Tarawera volcanic eruption of 1886 in the Bay of Plenty Region, New Zealand. Formed during the eruption of Mt Tarawera near Rotorua in June 1886 at t... Read More

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Obsidian, medium size specimen

Obsidian, medium size specimen

Medium Obsidian specimen for the classroom from the Tarawera volcanic eruption of 1886 in the Bay of Plenty Region, New Zealand. Formed during the eruption of Mt Tarawera near Rotorua in June 1886 at ... Read More

$15.00 inc GST Read more
Feldspar Porphyry

Feldspar Porphyry

Occuring in hornblende-feldspar porphyry dykes in the Biggenden area, Queensland. Displays feldspar phenocrysts up to 3mm in size. Images are examples of specimens only. Size and shape may vary. Speci... Read More

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