please help!!! Physical sience!!!!?
a rose colored mineral specimen is given to you for identification. It has a conchoidal fracture, no streak, and a non-metallic luster. It has can be scratched with a steel file, but not with glass or a pocketknife blade. It has no streak. Its mass is 53 grams. You place it in water and it displaces a volume of 20 cubic centimeters of water”
(a) What is the hardness of this mineral? Explain your answer
(b) What is the specific gravity of this mineral? show your calculations
(c) Using all these properties, identify this mineral
a) I would guess that the mineral is probably quartz, and therefore the hardness is 7 (can also be explained by it being unable to be scratched by the glass).
b) Specific Gravity is the density of the subject over the density of water, therefore 53 grams/20 cm = 2.65 g/cm^3.
c) And, lo and behold, the specific gravity of Quartz is 2.65, which, along with the conchoidal fracture and rose coloring, leads me to positively identify this mineral as quartz.
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