
1) Copper mineral 2) Monoclinic mineral
Found on
https://www.crosswordclues.com/clue/liroconite

Liroconite is a complex mineral: Hydrated copper aluminium arsenate hydroxide, with the formula Cu2Al[(OH)4|AsO4]·4(H2O). It is a vitreous monoclinic mineral, colored bright blue to green, often associated with malachite, azurite, olivenite, and clinoclase. It is quite soft, with a Mohs hardness of 2 - 2.5, and has a specific gravity of 2.9 - 3.0...
Found on
http://en.wikipedia.org/wiki/Liroconite

• (n.) A hydrated arseniate of copper, occurring in obtuse pyramidal crystals of a sky-blue or verdigris-green color.
Found on
http://thinkexist.com/dictionary/meaning/liroconite/
Li·roc'o·nite (li*rŏk'o*nīt)
noun [ Greek
leiro`s pale +
koni`a powder.]
(Min.) A hydrated arseniate of copper, occurring in obtuse pyramidal crystals of a sky-blue or verdigris-green color.
Found on
http://www.encyclo.co.uk/webster/L/48

Liroconite is a hydrated arsenate of copper, occurring in obtuse pyramidal crystals of a sky-blue or verdigris-green colour.
Found on
http://www.probertencyclopaedia.com/browse/HL.HTM
No exact match found.