The test is called a streak test and it leaves a powdered form of the mineral on the porcelain. The powdered mineral reveals the true color, of the mineral specimen, which may or may not match the color of the specimen.
By rubbing mineral against a piece of porcelain tile, the objective of the test is to observe the hardness of the mineral.
Properties used to identify minerals.
Lustre Colour Cleavage Hardness Streak Crystal Habit Specific Gravity Magnetism Effervescence Double Refraction Taste Feel
Hardness alone is not a good way to identify a mineral, other properties such as streak color, cleavage, opacity, ect also need to be taken into consideration. There is no "quick way" to properly identify a mineral.
THE EIGHT WAYS TO I.D. A MINERALThe eight ways to identify a mineral such as corundum are 1 hardness 2 crystal shape 3 special features 4 density 5 streak 6 luster 7 cleavage or fracture 8 color. (to find out hardness look up "Mohs scale of hardness" everything else you could search it on google or bing)
By rubbing mineral against a piece of porcelain tile, the objective of the test is to observe the hardness of the mineral.
Properties used to identify minerals.
Hardness, Cleavage, Luster, Color, Streak, and Texture.
Color, streak color, hardness, cleavage, and chemical.
color streak cleavage fracture hardness transparency luster
You can use the characteristics(color, luster, streak, hardness, cleavage, fracture, and crystal).
there are a few basic tests to identify a material. hardness, color, lustor, crystal form, cleavage, and streak. I believe this is all of them, but it has been several years. They are classified by the same tests that identify them. For example, diamond is classified as a 10 hardness material (the only 10 hardness material) Glass is 7 hardness.
By the mineral color, streak color, luster, hardness, the property of the mineral, if it's fracture or cleavage and it's specific gravity. Those are just basic, so there's many other ways to ID a mineral.
Minerals have certain properties, or characteristics, that help to identify them. Minerals can be identified by their color, luster, streak, cleavage, hardness, specific gravity, and even by their chemical composition.
Observable properties are: color and streak, luster, cleavage and fracture (crystalline structure), and hardness.
Lustre Colour Cleavage Hardness Streak Crystal Habit Specific Gravity Magnetism Effervescence Double Refraction Taste Feel
In a hand sample/specimen you can the properties used to identify minerals are luster, diaphaneity, color, streak, luminescence, play of colors, crystal shape, tenacity, cleavage, hardness, specific gravity and density, magnetism, electrical properties, reaction to acid.