A light yellow, red-brown, or black colored mineral, SnO2, this is certainly an important tin ore. Also called tinstone.
A generally black colored mineral, consists of tin oxide, SnO2, that will be a significant ore of tin.
indigenous tin dioxide; tin stone; a mineral happening in tetragonal crystals of reddish brown shade, and brilliant adamantine luster; additionally huge, often in small kinds with concentric fibrous construction resembling wood (timber tin), in addition in rolled fragments or pebbly (Stream tin). It is the main way to obtain metallic tin. See black colored tin, under black.
Native tin dioxid, SnO2, a mineral crystallizing in tetragonal types, typically of a brown to black colored shade, and achieving a splendent adamantine luster in the crystalline faces.
a tough hefty dark mineral that's the chief supply of tin