1) Triclinic mineral
Found on
https://www.crosswordclues.com/clue/alunogen
Alunogen also called feather alum and hair salt is a colourless to white (although often coloured by impurities, such as iron substituting for aluminium) fibrous to needle-like aluminium sulfate mineral. It has the chemical formula Al2(SO4)3·17H2O. It is often found on the walls of mines and quarries as a secondary mineral. It can be found in the...
Found on
http://en.wikipedia.org/wiki/Alunogen
• (n.) A white fibrous mineral frequently found on the walls of mines and quarries, chiefly hydrous sulphate of alumina; -- also called feather alum, and hair salt.
Found on
http://thinkexist.com/dictionary/meaning/alunogen/
a sulfate mineral formed by sulfate solutions that attack aluminous minerals; alunogen is hydrated aluminum sulfate, formulated Al2(SO4)317H2O. It ...
Found on
http://www.britannica.com/eb/a-z/a/54
A·lu'no·gen noun [ French
alun alum +
-gen .]
(Min.) A white fibrous mineral frequently found on the walls of mines and quarries, chiefly hydrous sulphate of alumina; -- also called
feather alum , and
hair salt .
Found on
http://www.encyclo.co.uk/webster/A/64
Alunogen is a fibrous aluminium sulphate found in volcanic debris, clays, felspathic rocks which contain pyrites, and often as an inflorescence on the walls of mines and caves.
Found on
http://www.probertencyclopaedia.com/browse/HA.HTM
a mineral, hydrous sulfate of aluminum, Al(SO)&multiplydot;18HO, occurring as a white, fibrous crust on quarry or mine walls.
Found on
https://www.infoplease.com/dictionary/alunogen
No exact match found.
