Eosc 118 test - Study guides, Class notes & Summaries

EOSC 118 TEST QUESTIONS AND ANSWERS ALL CORRECT Where are the finest qualities of rubies found - Answer- Myanmar (the Mogok Stone Tract of Burma) What is considered the best colour of rubies - Answer- pigeon's blood red Where are the common geographic origins for diamonds, rubies, and emeralds ? - Answer- diamonds - South Africa emeralds - Columbia (formally Egypt) rubies - Myanmar What are the primary uses for PGMs - Answer- electronics, jewellery, and autocatalysts Wh...

EOSC 118 Final Test Questions with 100% Correct Answers What is similar about the geological setting in which diamonds and xenocrystic corundum are formed? - Answer- Both are formed at great depths in the Earth, and brought to the surface by magma of a different composition In four pegmatite classes, which one is most likely to contain gemstones? - Answer- Rare-element Where are the famous districts of gem bearing pegmatites? - Answer- Us Italy Pakistan What condition is critica...