GEOL 2540 Lecture Notes - Lecture 25: Grossular, Anhydrite, Tungsten

• School: University of Manitoba
• Department: Geological Sciences
• Course: GEOL 2540
• Professor: Chakhmouradian Anton

Document Summary

The examples given below are not intended to provide exhaustive coverage of the geol 2500/2540 course material. To prepare for the final examination, you should study both your notes and relevant book chapters (with emphasis on any lecture material you might have missed). True or false? (total value 15 points, value 1 point per question). Respond in pencil on the computer form beside the corresponding number (a = true, b = false): schorl is a cyclosilicate in which (sio4)4- tetrahedra are arranged in (si6o18)12- rings. T (all tourmalines, including elbaite and schorl, are ring silicates: perovskite-like silicates of composition (mg,fe)sio3 are the most volumetrically significant constituent of the earth"s upper mantle. F (perovskite-like mgsio3 are stable in the lower mantle; the upper mantle is composed of olivine, pyroxenes, garnets and spinels: the formula of uraninite is usio4. F (uraninite is an oxide, not silicate, mineral; its correct simplified formula is uo2: all sulfate minerals contain (so4)2- anions.