Answer: simas

AnswerCrossword Clue
SIMASIgneous rocks
simasthe uppermost member of a full classical order, usually a cyma recta, representing a roof gutter; cymatium
simasSIMA, an igneous rock
simasassemblage of rocks, rich in silica and magnesium, that constitutes the lower layer of the earth's crust and is found beneath the ocean floors and the sial of continents