1) Beautiful stone 2) Cut mineral 3) Decorative stone 4) Gemstone 5) Gemstone mineral 6) Jewel mineral 7) Jewel 8) Luminescent mineral 9) Mineral gemstone 10) Mineral jewel 11) Polished mineral 12) Polished jewel 13) Precious gem 14) Precious jewel 15) Precious gemstone 16) Prized stone 17) Prized mineral
Found on
https://www.crosswordclues.com/clue/hauyne
Hauyne, haüyne or hauynite was first described in 1807 from samples discovered in Vesuvian lavas in Monte Somma, Italy, and was named in 1807 by Brunn-Neergard for the French crystallographer René Just Haüy (1743–1822). It is a tectosilicate mineral with sulfate, with endmember formula Na3Ca(Si3Al3)O12(SO4). As much as 5 wt % K2O may be prese...
Found on
http://en.wikipedia.org/wiki/Hauyne
Hauyne has the formulae (Na,Ca)4-8(Al6Si6)O24(SO4,S)1-2. It has a relative hardness of 6. It is of interest to collectors. Occurs in igneous and volcanic rocks.
Found on
http://www.probertencyclopaedia.com/browse/HH.HTM
No exact match found.
