Hey there!:
mass = 41.2 g
Volume = 8.2 cm³
Therefore:
D = m / V
D = 41.2 / 8.2
D = 5.02 g/cm³
D , is the correct answer
Purely for crystalline structure, "twinning" or repetition of crystal forms can bring about a striated texture on the mineral. Crystal defects and chemical impurities can alter the physical and electrical properties of a mineral. Some minerals can exist in different crystal forms and exhibit "polymorphism." The range in crystal structure can change the mineral's hardness, strength, solubility, electrical properties, melting points, etc.
Tempurature of a substance.
