Streak is the color of a mineral’s powder. Streak is a more reliable property than color because streak does not vary. Minerals that are the same color may have a different colored streak. Many minerals, such as the quartz in the Figure above, do not have streak.

Streak is the color of a crushed mineral’s powder. The color of a mineral’s powder may differ from the actual color of the mineral. This property can be useful for mineral identification. Almost every mineral has an inherent streak color, no matter what color the actual mineral is.

Streak is closely related to color, but is a different property because the color of the mineral may be different than the color of the streak. Streak is actually the color of the powder of a mineral.

Answer: Streak is the color of the mineral in powdered form. Streak shows the true color of the mineral. In large solid form, trace minerals can change the color appearance of amineral by reflecting the light in a certain way.

The physical properties of minerals are determined by the atomic structure and crystal chemistry of the minerals. The most common physical properties are crystal form, color, hardness, cleavage, and specific gravity. One of the best ways to identify a mineral is by examining its crystal form (external shape).

Most minerals can be characterized and classified by their unique physical properties: hardness, luster, color, streak, specific gravity, cleavage, fracture, and tenacity.

Minerals are inextricably linked to the rise of mankind and civilization. Their importance has been repeatedly documented by archeologists who have named the Ages of Mankind on the basis of the materials used by society – the Stone Age, the Copper Age, the Bronze Age, and the I ron Age.

A mineral is a naturally occurring inorganic solid, with a definite chemical composition, and an ordered atomic arrangement. This may seem a bit of a mouthful, but if you break it down it becomes simpler. Minerals are naturally occurring. They are not made by humans. Minerals are inorganic.