Rhyolite (Felsite)

Rhyolite (Felsite)
Rhyolite (Felsite)
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Rhyolite Felsite, a highly felsitic composed variation of Rhyolite, found in Fife, Scotland, an extrusive igneous rock composed of sodium, quartz and feldspar, thus often having a pale white to pink colouration. Available in various sizes and supplied in a card tray with an information label.

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Excl. Tax: £1.00 Incl. Tax: £1.20
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Rhyolite Felsite, a highly felsitic composed variation of Rhyolite, it is generally a fine grained extrusive igneous rock which is composed mostly of quartz and feldspar (orthoclase), thus giving the rock a pale pink colour. Felsite is formed by the compaction of fine grained volcanic ash, so fine that sometimes it can even exhibit a conchoidal fracture, similart to obsidian and flint, and so there have been occurrences where they have been used as stone tools. These particular rock specimens are found in Fife, Scotland. Specimens are supplied in a card tray with label with various sizes to choose from.
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