1) Beautiful stone 2) Cut mineral 3) Decorative stone 4) Gemstone 5) Gemstone mineral 6) Jewel 7) Jewel mineral 8) Mineral jewel 9) Mineral gemstone 10) Polished mineral 11) Polished jewel 12) Precious jewel 13) Prized stone 14) Prized mineral 15) Precious gemstone 16) Precious stone 17) Precious gem
Found on
https://www.crosswordclues.com/clue/dumortierite
Dumortierite is a fibrous variably colored aluminium boro-silicate mineral, Al7BO3(SiO4)3O3. Dumortierite crystallizes in the orthorhombic system typically forming fibrous aggregates of slender prismatic crystals. The crystals are vitreous and vary in color from brown, blue, and green to more rare violet and pink. Substitution of iron and other tr...
Found on
http://en.wikipedia.org/wiki/Dumortierite
Dumortierite is an often bright coloured and fibrous mineral occurring in metamorphic rocks rich in aluminium and also in pegmatites and contact metamorphic rocks. It has the formulae Al7(BO3)(SiO4) 3O3 and a relative hardness of 7.
Found on
http://www.probertencyclopaedia.com/browse/HD.HTM
a mineral, aluminum borosilicate.
Found on
https://www.infoplease.com/dictionary/dumortierite
No exact match found.
