HyperDic: pitchstone

English > 1 sense of the word pitchstone:
NOUNsubstancepitchstonedark acid granitic glass
English > pitchstone: 1 sense > noun 1, substance
Meaningdark acid granitic glass.
Broadervolcanic glassA kind of natural glass produced when molten lava cools very rapidly
Spanishresinita
Catalanresinita

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