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hornstoneHORN'STONE, n. A siliceous stone, a subspecies of quartz. It is divided by Jameson into splintery, conchoidal, and wood-stone. [See Chert.] |
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hornstoneHORN'STONE, n. A siliceous stone, a subspecies of quartz. It is divided by Jameson into splintery, conchoidal, and wood-stone. [See Chert.] |