39 
and foliated.—The grey copper ore (fahl ore), saloon. 
crystallized, massive, and disseminated in various Nat. Hist. 
substances. 
(Case 33.) Ores of copper continued : yellow 
copper or copper pyrites , the most common of all 
the ores of this metal: among these is also the 
pale yellow, fine grained variety, called hemati- 
tiform and blistered copper pyrites.— Seleniurel 
of copper and silver , called eukairite , in foliated 
carbonate of lime from Skrickerum, in Smolandia, 
Sweden.— Red or ruby copper ore , compact, 
foliated, and fibrous; one of the more remark¬ 
able is the bright red capillary variety from 
Rheinbreitenbach, in Nassau. To these are 
added a few specimens of what is called tile*red 
copper, or tile ore , a mixture of red copper ore 
and brown iron ochre. 
(Case 34.) Ores of copper continued: black 
copper , massive, and as superficial covering of 
other copper ores.— Carbonates of copper: splen¬ 
did groups of crystallized blue or azure copper , 
from Chessy and the Bannat, combined with 
various substances, and earthy varieties of the 
same, some of which (called mountain-blue) have 
been used as pigments.—Crystals passing from 
the state of blue copper into that of green car¬ 
bonate (cuivre carbonate bleu epigene Hauy .)— 
Green carbonates of copper; among which are 
the beautiful varieties of fibrous malachite of vel¬ 
vety appearance, in acicular crystals, with car¬ 
bonate of lead, &c, 
(Case 
