Assertion: pure cassiterite | /r/MadeOf | some iron
Facets:
value: in real world
type: LOCATION
Source sentences:
text: Pure cassiterite is light-colored mineral, but in real world it contains some iron, which makes the crystals often look almost opaque.
text: Pure cassiterite is light colored mineral but in real world it contains some iron which makes the crystals often look almost opaque The grains in sand are usually light to dark brown [Live Chat]
text: Pure cassiterite is light colored mineral but in real world it contains some iron which makes the crystals often look almost opaque The grains in sand are usually light to dark brown [Live Chat]