eof 
RT eR get Pea er Me ee oO eis eels ale See ek alte 
Bim eile Shige ie gS 0 ae Se i eth a Nt Vala et ee 
£7 The West American Scientist. 18 
extraordinary as to sugg+st burlesque 
Nevertheless, this surprising feat has 
been accomplished oe ace W.¢. Day. 
A A A native exyc chloride 
of copper, originally parity in the form 
of sand, in the desert of Atacama, be- 
near Calmalli, os California, 
is gaa att as this specie 
AZURITE—‘Mountain  plue” (blue 
carbonate He copper) occurs sparingly 
me 
ihe copper mines of Arizona. ompo- 
sition about 69.2 per cent copper oxide, 
25.6 per cent carbonic acid, and 5.2 per 
ary rater. 
Bz regia aaen or heavy spar is 
erat eg ut 65.7 per cent baryta 
34.3 p Stent of sulphuric acid. The 
preseni supply in pe United States is 
excessive the d. 
ER tS Quite cand to those from 
the Ural mountains have been produced 
j i Carolina. Their 
in San Diego county has re- 
eently Beer predicted. 
BRAZILIAN EMERALD—The em- 
blem of the Brazilian clergy, is not an 
emerald proper, but a green 
green tourmalines 
have cries found in San Diego age vy, 
erf 
termination, is banded green at the 
of achroite Peer 
into rubellite beh ail fractured. A 
other specimen en at the camber 
with a thin outer coat of black. 
B E—Blac a occu 
mineral encod 
from the r mines at nta Ros- 
alia, Baja California, on the west coast 
of the Gulf of California. Occurs in 
perfect cubes. 
Ww 
vag ee Ter etree ties gi from a 
n about 36.6 
me de of blue and green. The deserts 
of California ne Nevada produce an- 
out 
rasan eh nreaaet in 1896 being 18,- 
508,000 pounds, worth $675,400 
CALCITE eg rbonate of lime, con- 
sisting of lime a carbonic acid. 
R saat” in crystalieetiane in- 
cludes marble, limestone, 
i 
for the manufacture of cement. ino- 
lite, occuring on the Colorado desert, 
is gues r form. 
mestone occurs abundantly in var- 
ee most highly 
“ the ancients—oc- 
ert. 
where 
higly prized or ee stone have 
been partially develop 
CASSITERITE — e fro 
r cent tin, and 21.4 nt oxygen. 
It occurs in the Black Hills, South Da- 
ota, at escal, Riverside county, 
California, an iego. e 
mens equal to that from Durango 
Mexico, which is polished as a gem. 
ERAR RI “Hor silver” 
75.38 per cent silver, and 24.7 
a piece of mosaic work, 
Pi : 
= 
