gevrek ve camsı volkanik kaya

listen to the pronunciation of gevrek ve camsı volkanik kaya
Turkish - English
pitchstone
a natural glass, that is rich in microscopic crystallites, formed by the rapid cooling of lava or magma
{n} a siliceous stone of a grayish black
a natural glass, that is rich in microscopic crystalites, formed by the rapid cooling of lava or magma
dark acid granitic glass
An igneous rock of semiglassy nature, having a luster like pitch