The true colour of a mineral as seen in its powdered form is called it's ________.
A)birefringence
B)chatoyancy
C)iridescence
D)streak

Question

Quizplus · Accepted Answer

The true colour of a mineral as seen in its powdered form is called its streak. This can be determined by rubbing the mineral against a porcelain plate, leaving behind a colored streak which is characteristic of the particular mineral.

The True Colour of a Mineral as Seen in Its