What's the difference between cassiterite and tinstone?
Cassiterite
Definition:
(n.) Native tin dioxide; tin stone; a mineral occurring in tetragonal crystals of reddish brown color, and brilliant adamantine luster; also massive, sometimes in compact forms with concentric fibrous structure resembling wood (wood tin), also in rolled fragments or pebbly (Stream tin). It is the chief source of metallic tin. See Black tin, under Black.
Example Sentences:
(1) When the bucket is full, he carries it over to a little pit of seawater and drags over what looks like a large wooden sled to start washing and separating the cassiterite from the grains of sand.
(2) Most of the remainder gets by on mineral search and mining (tin, cassiterite, gold).
(3) Add on conflict minerals such as cassiterite, gold, wolframite, cobalt and coltan from the Congo, plus the damage from huge pits and deep tunnels.
(4) Gold, cassiterite and coltan are some of the minerals mined in the area near Luvungi.
(5) When the Dutch colonised Indonesia in the early 19th century, one of their first tasks was to carve out vast mines on the island where locals and Chinese coolies worked side by side digging for dark specks of cassiterite – the main mineral in tin ore – to be used in alloys, conductors and tin plating.