biotite has a colorless streak
The streak color of calcite is white.
Color is the observable color of a mineral specimen in natural light. Streak is the color of a mineral when powdered. The color of a specific mineral specimen may be different than its streak color. Because many impurities can alter the color of a mineral, but not the streak, streak is a more accurate predictor in mineral identification.
Luster is not a color, but a visible characteristic of the mineral's reflection of light off it's surface. In this case, the color of biotite is dark brown to black, but it's luster would be described as vitreous or glassy.
The streak color of Aquamarine is colorless. And your welcome!! : )
Luster is not a color, but a visible characteristic of the mineral's reflection of light off it's surface. In this case, the color of biotite is dark brown to black, but it's luster would be described as vitreous or glassy.
The Micas (Musccovite and Biotite) are colourless
there is no name for the color, but there is the "streak" of a mineral, meaning the color of its streak.
A streak that has color or no color.
The color of a mineral in powdered form is called the streak color.
The streak color of calcite is white.
the color of the streak for dolomite is white
the streak color is Dark Green
The streak color of calcite is white.
Color is the observable color of a mineral specimen in natural light. Streak is the color of a mineral when powdered. The color of a specific mineral specimen may be different than its streak color. Because many impurities can alter the color of a mineral, but not the streak, streak is a more accurate predictor in mineral identification.
The color of the cobalt streak is blue
the streak color is Dark Green
there is no name for the color, but there is the "streak" of a mineral, meaning the color of its streak.