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Unknown
Unknown
ID: G198
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Unknown
Unknown
ID: G199
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Unknown
Unknown
ID: G200
Meteorite
ID: G201
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Rhyolite
A fine grained lava of granite composition
ID: G202
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Obsidian
A glassy lava of granite composition.
ID: G203
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Granite
A course-grained rock of quartz, felspar and mica
ID: G204
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Porphyry
A lava containing large and small crystals: Middle Devonain: Babbacomb cliff, Torquay.
ID: G205
Meteorite
Two meteorite fragments, part of a meteorite which fell in Harray, autumn 1889, weight 180pounds. Another piece fell at Bay of Skaill.
ID: G274
Haematite
Haematite is a form of iron oxide and can be found on the island of Hoy, Orkney.
ID: G312