flaser

noun
fla·​ser | \ ˈfläzə(r)\
plural -s

Definition of flaser

: an irregular usually streaked lens of granular texture found in a micaceous interstitial mass of rock and produced by shearing and pressure during metamorphism

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History and Etymology for flaser

German, vein in wood or rock, probably dialect modification of flader vein in wood, veined wood, maple tree, from Middle High German vlader vein in wood, veined wood; perhaps akin to Greek platys flat, broad

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