1) Hexagonal mineral
Found on
https://www.crosswordclues.com/clue/erionite
Erionite is a naturally occurring fibrous mineral that belongs to a group of minerals called zeolites. It usually is found in volcanic ash that has been altered by weathering and ground water. Erionite forms brittle, wool-like fibrous masses in the hollows of rock formations and has an internal molecular structure similar to chabazite. Some proper...
Found on
http://en.wikipedia.org/wiki/Erionite
hydrated sodium-potassium-calcium aluminosilicate mineral in the zeolite family, one of the most abundant zeolites present in sedimentary rocks. Its ... [1 related articles]
Found on
http://www.britannica.com/eb/a-z/e/41
(Hydrated Potassium Sodium Calcium Magnesium Aluminum Silicate) Erionite is one of the rarer zeolites, a popular group of minerals to collect. Erionite has been challenged as a new mineral species. It was thought to be another rare zeolite named offretite . Offretite was named first and if erionite were proven in actuality to ...
Found on
https://www.encyclo.co.uk/local/23719
No exact match found.
