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Bearing in mind that Gneiss is not a mineral, and that it is very hard, Gneiss does not leave a streak, but scratches the plate (don't try it - this is not how you classify Gneiss). Gneiss is classified by its Gneissose Banding - distinct bands of light Feldspar/Quartz and dark Micas. It is also classified by the extent of metamorphism which has taken place.
What else can I help you with?
What is perlite's streak color?
Perlite does not have a streak color because it is a volcanic glass that does not leave a streak on a streak plate.
What is the the streak color of calcite?
The streak color of calcite is white.
What is the streak color for wheat?
The streak color for wheat is white.
What is the difference between color and streak in minerals?
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.
What color is the streak of onyx?
The streak of onyx is usually white or a light color.
What is gneiss streak?
Gneiss does not have a streak because it is a metamorphic rock composed of interlocking minerals with no cleavage. The streak test is typically used to determine the color of the powdered form of a mineral when rubbed against a streak plate, but this is not applicable to gneiss.
What is gneiss's' streak?
None
What is the streak color of chalcopyrite?
the streak color is Dark Green
What is perlite's streak color?
Perlite does not have a streak color because it is a volcanic glass that does not leave a streak on a streak plate.
What is the color of a Gneiss rock?
A Gneiss rock is somewhat dark-greenish, depending on when it was made.
What is the color of the streak of calcite?
The streak color of calcite is white.
What is the the streak color of calcite?
The streak color of calcite is white.
Is streak the color of powder?
Streak refers to the color of a mineral in powder form.
What color is the streak of dolomite?
the color of the streak for dolomite is white
What is the color of a minerals powder called?
there is no name for the color, but there is the "streak" of a mineral, meaning the color of its streak.
The color of a minerals powder is its what?
The color of a mineral's powder is its streak. This is the color of the powdered form of the mineral when it is scraped against a hard surface. Streak is a more reliable indicator of a mineral's identity than its exterior color.
What is the color of chert's streak?
Chert has no streak, it is too hard.
