
1) Barium mineral 2) Beautiful stone 3) Cut mineral 4) Decorative stone 5) Gemstone 6) Gemstone mineral 7) Jewel 8) Jewel mineral 9) Mineral gemstone 10) Mineral jewel 11) Polished mineral 12) Polished jewel 13) Precious gem 14) Prized mineral 15) Precious stone 16) Precious jewel 17) Prized stone 18) Precious gemstone
Found on
https://www.crosswordclues.com/clue/benitoite

Benitoite (pronounced t) is a rare blue barium titanium silicate mineral, found in hydrothermally altered serpentinite. Benitoite fluoresces under short wave ultraviolet light, appearing bright blue to bluish white in color. The more rarely seen clear to white benitoite crystals fluoresce red under long-wave UV light. It was first described in 190...
Found on
http://en.wikipedia.org/wiki/Benitoite

(from the article `mineral`) ...of 1:3. There are three closed cyclic configurations with the following formulas: Si3O9, Si4O12, and Si6O18. The rare titanosilicate benitoite ...
Found on
http://www.britannica.com/eb/a-z/b/48

Benitoite is a mineral silicate of barium and titanium used as a gem stone. It occurs in a wide range of colours, commonly blue, but also purple, pink or white or colourless. Benitoite sometimes displays dichrorism - two colours occurring within a single crystal. It has a relative hardness of 6.
Found on
http://www.probertencyclopaedia.com/browse/HB.HTM

a rare mineral, barium titanium silicate, BaTiSiO, occurring in blue hexagonal crystals exhibiting dichroism.
Found on
https://www.infoplease.com/dictionary/benitoite
No exact match found.