(via The Canadian Gemmologist, Vol.III, No.4, Spring, 1982) My color is caused by copper and I am considered idiochromatic. If you put acid on me, I fizz like a shaken bottle of cola. Monoclinic in structure, with an R.I somewhere between 1.65 – 1.90, I am used for jewelry and for carving. What am I?
Answer: Malachite
P.J.Joseph's Weblog On Colored Stones, Diamonds, Gem Identification, Synthetics, Treatments, Imitations, Pearls, Organic Gems, Gem And Jewelry Enterprises, Gem Markets, Watches, Gem History, Books, Comics, Cryptocurrency, Designs, Films, Flowers, Wine, Tea, Coffee, Chocolate, Graphic Novels, New Business Models, Technology, Artificial Intelligence, Robotics, Energy, Education, Environment, Music, Art, Commodities, Travel, Photography, Antiques, Random Thoughts, and Things He Like.
No comments:
Post a Comment