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) Monoclinic mineral 12) Potassium mineral 13) Polished mineral 14) Polished jewel 15) Prized stone 16) Precious gem 17) Prized mineral
Found on
https://www.crosswordclues.com/clue/charoite
Charoite (K(Ca;Na)2Si4O10(OH;F)·H2O) is a rare silicate mineral, first described in 1978 and named for the Chara River. It has been reported only from the Sakha Republic, Yakutia, Siberia, Russia. It is found where a syenite of the Murunskii Massif has intruded into and altered limestone deposits producing a potassium feldspar metasomatite. Charo...
Found on
http://en.wikipedia.org/wiki/Charoite
Charoite is a rare mineral resembling purple marble, found only along the Chary river in Russia, used as an ornamental stone and as a gem stone. Charoite has a relative hardness of 5.
Found on
http://www.probertencyclopaedia.com/browse/HC.HTM
(Hydrated Sodium Calcium Barium Strontium Silicate Hydroxide Fluoride) Charoite is an unsual mineral and of rare occurence. It is found to date in only one location: along the Chary River at Aldan in Russia. It formed from alteration of limestones by the close presences of an alkali-rich nephline syenite intrusion. The heat, pre...
Found on
https://www.encyclo.co.uk/local/23719
No exact match found.
