2 ผลลัพธ์ สำหรับ *hornstone*
หรือค้นหา: hornstone, -hornstone-

Collaborative International Dictionary (GCIDE)
Hornstone

n. (Min.) A siliceous stone, a variety of quartz, closely resembling flint, but more brittle; -- called also chert. [ 1913 Webster ]


WordNet (3.0)
hornfels(n) a fine-grained metamorphic rock formed by the action of heat on clay rocks, Syn. hornstone

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