variolite (Q43516)

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An old term for basaltic rocks with a pock-marked appearance, composed of variolites (radial aggregates of feldspar and pyroxene microlites) in a microcrystalline or devitrified glassy base
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English
variolite
An old term for basaltic rocks with a pock-marked appearance, composed of variolites (radial aggregates of feldspar and pyroxene microlites) in a microcrystalline or devitrified glassy base

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