松脂石 sōngzhīshí pitchstone Definitions Defs Origin Strokes Stroke Words Sentences Sents 松脂石 sōngzhīshí pitchstone A dark, resinous volcanic glass formed by the rapid cooling of lava or magma; typically dark green, brown, or black with a shell-like fracture pattern; also called 沥青石 lìqīngshí. Cross-References Same as 沥青石 lìqīngshí
松脂石 sōngzhīshí pitchstone A dark, resinous volcanic glass formed by the rapid cooling of lava or magma; typically dark green, brown, or black with a shell-like fracture pattern; also called 沥青石 lìqīngshí. Cross-References Same as 沥青石 lìqīngshí
