A type of metamorphic rock composed of varying amounts of clay minerals and quartz.

अचलरुचिक (Metamorphic rock)

English Usage: "The geologist studied the agalmatolite to understand its formation."

Hindi Usage: "भूवैज्ञानिक ने उसकी संरचना समझने के लिए अचलरुचिक का अध्ययन किया।"