Andalusite - Study guides, Class notes & Summaries

Tanzanite was discovered in... - Answer-1967 Tanzanite is a transparent variety of... - Answer-zoisite All the gems in this chapter share the optical property of _______________________. - Answerpleochroism The first tanzanite was discovered in North Tanzania in __________. - Answer-Merelani Who named tanzanite? - Answer-Tiffany's About 5% of the tanzanite found is naturally _______. - Answer-blue Tanzanite crystallizes in the ___________________ crystal system. - Answer-orthorhombic Tan...

Tanzanite was discovered in... - ANSWER 1967 Tanzanite is a transparent variety of... - ANSWER zoisite All the gems in this chapter share the optical property of _______________________. - ANSWER pleochroism The first tanzanite was discovered in North Tanzania in __________. - ANSWER Merelani Who named tanzanite? - ANSWER Tiffany's

GIA Colored Stones Assignment 21: Tanzanite, Iolite, Chrysoberyl, and Andalusite EXAM |Questions Solved 100% Correct| Verified Answers

tree resin hardened over time up to 1000 years️️amber inmature amber️️copal most valuable amber️️transparent red cause amber color change over time️️oxidation circular marks sometimes left in amber when heat and oil it️️sun spangles coral most valuable color️️intense red color of conchiolin coral️️black and gold most valuable ivory️️elephant tusks ornamental form of lignite coal️️jet major jet source️️England A natural, inorganic substance with a...