1) Beautiful stone 2) Cut mineral 3) Decorative stone 4) Gemstone 5) Gemstone mineral 6) Jewel mineral 7) Jewel 8) Mineral gemstone 9) Mineral jewel 10) Polished mineral 11) Polished jewel 12) Precious gem 13) Precious stone 14) Precious gemstone 15) Prized stone 16) Prized mineral 17) Precious jewel
Found on
https://www.crosswordclues.com/clue/dravite
a brown, magnesium-rich variety of tourmaline. See tourmaline.
Found on
http://www.britannica.com/eb/a-z/d/73
(complex Sodium Magnesium Iron Boro-Aluminum Silicate) Dravite is a little known species of the Tourmaline Group. The two best-known species of tourmalines are Schorl (black, iron rich) and Elbaite (various colors and sometimes cut for gems, lithium rich). Nearly all tourmaline jewelry is elbaite. Dravite is brown, and will some...
Found on
https://www.encyclo.co.uk/local/23719
a brown variety of magnesium tourmaline.
Found on
https://www.infoplease.com/dictionary/dravite
No exact match found.
