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trachybasalt
1 dictionary results for: trachybasalt
Dictionary.com Unabridged (v 1.1) - Cite This Source - Share This

tra⋅chy⋅ba⋅salt

   [trey-kee-buh-sawlt, -bas-awlt, -bey-sawlt, trak-ee-]
–noun
a fine-grained volcanic rock containing sanidine and calcic plagioclase.
Origin:
1885–90; trachy- + basalt
Dictionary.com Unabridged (v 1.1)
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2006.
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