my·lo·nite (m  l -nt )n. A fine-grained laminated rock formed by the shifting of rock layers along faults. |
n, mill (from mul
, handmill; see melmylonite [ˈmaɪləˌnaɪt ˈmɪlə-]
n
(Earth Sciences / Geological Science) a fine-grained metamorphic rock, often showing banding and micaceous fracture, formed by the crushing, grinding, or rolling of the original structure
[from Greek mulōn mill]
| mylonite (ml-nt) A fine-grained laminated metamorphic rock in which preexisting minerals have been partially pulverized and drawn out into bands. Mylonite forms along geologic faults where shearing and grinding of rocks takes place. |
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