Collection of 24 volcanic rocks and minerals The collection contains volcanic rocks and minerals.
The collection contains:
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Volcanic rocks: basalt, phonolite, pitchstone, rhyolite
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Lava: Lava from Vesuvius, basaltic lava and rhyoltic lava
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Pyroclasts: lapilli, volcanic ash, pumice stone
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Minerals: anorthite, anorthoclase, augite, cristobalite, hauyne, leucite, natrolite, nepheline, pickeringite, sanidine, sulphur, thaumasite, tridymite, obsidian.