Why does hematite cause the rusty red color observed in many surface rocks?
A) Hematite is a carbon-oxide, giving rocks the red color (even if in small amounts).
B) Hematite contains pyrite, giving rocks the red color (even if in small amounts).
C) Hematite is an iron-oxide, giving rocks the red color (even if in small amounts).
D) Carbonic acid weathers hematite, giving rocks the red color (even if in small amounts).

Question

Quizplus · Accepted Answer

Hematite is an iron-oxide mineral that gives rocks a rusty red color when present in small amounts. This is due to the presence of iron, which oxidizes and forms the characteristic red hue when exposed to air and water over time.

Why Does Hematite Cause the Rusty Red Color Observed in Many