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The streak test is not a very good identifier of rocks because rocks are composed of combinations of minerals which may have different color streaks. The streak test is mainly used in mineral identification. Even then, it is used in common with other indicators, like hardness, crystal system, and chemical composition.
Grainy rocks not only absorbs water better than crystal rocks, but it filters the water as well.
No
The theme song is by The Crystal Method
Granular rocks are rocks that are made up of small crystal-like granules. Non-granular rocks are rocks that are not made up of small crystal-like granules.
Such rocks are porphyritic.
High Roller by Crystal Method
Porphyritic Rocks are rocks that have big and small crystal's like the Igneous Rock "Andesite".
crystal rocks, I guess.
Yes, rocks can contain a variety of crystal sizes.
Crystal
what is test-retest method