1) Beautiful stone 2) Calcium mineral 3) Cut mineral 4) Decorative stone 5) Gemstone 6) Gemstone mineral 7) Jewel 8) Jewel mineral 9) Mineral gemstone 10) Mineral jewel 11) Polished jewel 12) Polished mineral 13) Precious gem 14) Prized stone 15) Precious gemstone 16) Precious stone 17) Prized mineral
Found on
https://www.crosswordclues.com/clue/hardystonite
Hardystonite is a rare calcium zinc silicate mineral first described from the Franklin, New Jersey, USA zinc deposits. It often contains lead, which was detrimental to the zinc smelting process, so it was not a useful ore mineral. Like many of the famous Franklin minerals, hardystonite responds to short wave ultraviolet (254 nm wavelength) light, ...
Found on
http://en.wikipedia.org/wiki/Hardystonite
No exact match found.
