Streak Colors

Streak Colors
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For more than thirty (30) years, Excalibur Mineral Corp. has been providing private collectors, researchers, major universities and museums throughout the world with reliably identified, rare and unusual mineral samples for science an

Streak colors

Definition

Streak color is the color of the finely-pulverized mineral. Streak plates are snow-white, unglazed ceramic tiles. You can use the back of a white, glazed tile from the hardware store to rub the mineral sample to produce a streak.

This only works for minerals which are softer than a ceramic tile (hardness ~ 7).

Other References to Mineral Streak

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Example Subject Searches

Example: "streak-red*" finds all minerals with a red or reddish sreak.
Example: "streak-reddish-brown" finds all minerals with a reddish brown streak.

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