" Multiple Answer 1 point What mineral is the hardest known substance in nature? [_} Native Gold @ Muscovite 1 [| } Diamond [ ] Silicate m Multiple Answer '1point : Which of the following describes the light reflecting characteristic of a mineral? 4 (| Virtual absorption 5 (_} Colorstreak Be Fluorescence (=) Luster 7 6 Fa | Multiple Answer 1point 9 What element is the most abundant in the Earth's crust by weight? @ Oxygen e [_) Carbon 14 ("} Sodium 12 (_} Chlorine 13