39 
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 va¬ 
rious 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 
carbonate (cuivre carbonate bleu epigene of 
Haiiy).—Green carbonates of copper; among 
which are the beautiful varieties fibrous mala¬ 
chite of velvety appearance, in acicular crystals, 
with carbonate of lead, &c. 
Case 35. Ores of copper continued : among 
the specimens of compact malachite, the most 
beautiful and characteristic are those from the 
Gumashevsk and Turja mines in the Ural moun¬ 
tains.— Anhydrous carbonate of copper.—Wer¬ 
ner’s frothy copper ore from Hungary.—In this 
case is also placed the copper-green of Werner, 
by some called chrysocolla, asubstance often con¬ 
founded with common green carbonates of cop¬ 
per, but which contains much silica.—To the 
silicates of copper may likewise be referred the 
dioptase, a very scarce substance from Siberia, 
also called emerald copper, on account of its 
pure green colour ; and the very scarce sky-blue 
velvet copper ore,—Phosphate of copper from 
Nassau 
SALOON. 
Nat. Hist, 
