Mineral Identification

Mineral Streak Color Special Features Picture
Azurite  

 

 

Colored

Deep blue
Malachite Green
Magnetite  

Dark/black

Magnetic; heavy
Augite
Gypsum  

 

 

 

 

 

 

White or colorless

 

Colorless/white/ brownish red, etc.

Can be scratched with a fingernail
Halite Tastes salty
Calcite Will bubble when in contact with vinegar
Fluorite Often green, red, purple, yellow, white, or blue
Kyanite Light blue, blue-gray, black Often appears as blades in other rocks
Sodalite Royal blue, white, or gray with green tints
Garnet Usually red, can be orange, green, brown, etc. Typically found as individual crystals in a larger rock
Amethyst Purple Often shows good crystal point form
Milky Quartz White
Olivine Green, yellowish, orange, colorless Looks grainy
Beryl Looks smooth