chalcanthite

The liquid from chalcanthite will also stain skin blue for several days.

The specimen should be never touched with the tongue, as chalcanthite is poisonous.

It is the iron analogue of the copper sulfate chalcanthite.

Due to its ready solubility, chalcanthite is more common in arid regions.

Chalcanthite's blue color is one of its most notable features, but it is insufficient in identification.

Secondarily, chalcanthite, due to its rich color and beautiful crystals, is a sought after collector's mineral.

Copper(II) sulfate is found in the ground as chalcanthite.

As chalcanthite is a copper mineral, it can be used as an ore of copper.

Therefore, chalcanthite is only found in the most arid regions in sufficiently large quantities for use as an ore.

Associated minerals in the discovery location include; atacamite, blodite, chalcanthite, antlerite and natrochalcite.

Minerals identified within the ore body include chalcanthite, chalcopyrite, copiapite, goslarite, pyrite, and pyrrhotite.

Associated minerals include pisanite, chalcanthite, epsomite, pickeringite, halotrichite and other sulfate minerals.

Given that chalcanthite is found in oxidized copper deposits, it is frequently found in association with other copper minerals.

A special note on tasting chalcanthite, however: chalcanthite has a sweetly metallic taste, but taste testing should not be done haphazardly.

As believed in Su's day, the "five poisons" used by Zhou era physicians for this purpose were thought to be cinnabar, realgar, chalcanthite, alum, and magnetite.

These other sulfates are identical in chemical composition to chalcanthite, with the exception of replacement of the copper ion by either manganese as jokokuite, iron as siderotil, or magnesium as pentahydrite.

At the Cap Garonne Mine, Pradet, Var, Provence-Alpes-Côte d'Azur, France, associated minerals are chalcophyllite, cyanotrichite, parnauite, mansfieldite, olivenite, tennantite, covellite, chalcanthite, antlerite, brochantite and geminite.

It occurs in alkali oxidized zones of copper deposits and is associated with natrochalcite, blodite, atacamite, bellingerite, kröhnkite, gypsum and quartz in the discovery location at Chuquicamata, Chile; and with chalcanthite, anhydrite and lammerite at Tsumeb, Namibia.