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hornfels
[hawrn-felz]
noun
a dark, fine-grained metamorphic rock, the result of recrystallization of siliceous or argillaceous sediments by contact metamorphism.
hornfels
/ ˈɔːԴɛ /
noun
Also called: hornstone.a hard compact fine-grained metamorphic rock formed by the action of heat from a magmatic intrusion on neighbouring sedimentary rocks
hornfels
A fine-grained metamorphic rock having a uniform grain size and formed by contact metamorphism.
51Թ History and Origins
51Թ History and Origins
Origin of hornfels1
Example Sentences
Stories, in that sly way, are his thing, and in his daily life he’s not averse to mussing around with geological terms like “hornfels” and “gneiss.”
They are excessively variable in their mineralogical composition, and very often alternate in thin seams with biotite hornfels and indurated quartzites.
From diabases, basalts, andesites and other igneous rocks a third type of hornfels is produced.
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