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n. A fine-grained, light-colored igneous rock, composed chiefly of feldspar and quartz.

n. A fine grained volcanic extrusive rock, generally light in color, composed of felsic minerals.

n. Any light-colored volcanic rock whose true mineralogy is not yet determined.

n. A finegrained rock, flintlike in fracture, consisting essentially of orthoclase feldspar with occasional grains of quartz.

n. A compact, very hard rock, almost flinty in texture. made up of quartz and orthoclase feldspar intimately mixed.

"The reason I wanted to see this beach is because the book said that if, conditions were right, the sound of the waves hitting this unique shoreline of flat, shingle-like “pink rhyolite and felsite bedrock” makes a tinkling, bell-like sound."

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