Together with her father the aritst visited the glowing chalcanthite
in the old gallery of Rammelsberges, Goslar.
Small (1 mm) masses of pale blue, transparent chalcanthite
are rare but have been found in the Reward mine.
Copper sulphate is a mineral that occurs in nature, and 'chalcanthite
' is a particularly attractive form.
Yellow and blue magnesiocopiapite and aluminocopiapite, white epsomite and wilcoxite, and blue chalcanthite
coat the hematite walls.
(2003) This study Azurite X X Barite X Brochantite X X Chalcocite X X Chalcanthite
X Chrysocolla X X Copper X X Covellite X Cuprite X X Delafossite X Malachite X X Neotocite X Plancheite X Tenorite ("melaconite") X X [FIGURE 15 OMITTED]
Is Hauy's "cuivre sulfate" then chalcanthite
, brochantite or antlerite?
The iron sulfate melanterite is found as colorless, water-soluble fibers; blue copper sulfate chalcanthite
lamellae and blue-green aggregates of acicular crystals of the Ca-Cu-Zn sulfate serpierite (some accompanied by green spherules of cornwallite) are found at Aghbar.
Masses of beautiful blue crystals of post-mining chalcanthite
are found in several sections of the mine, especially along the San Jose vein, growing in fissures in the rock walls or hanging from wooden beams, and these are popular with local mineral collectors, although many of their specimens of calcantita are really the more common cuprian melanterite.
was scarce in oxidized veins at the Gold King and Lone Jack mines and in the Ophelia, Chicago, and Cripple Creek tunnels (Lindgren and Ransome, 1906).