The West American Scientist. 
Vol. Xi No. 3. 
January, 1900. 
Whole No. 85." 
e ee 
Pe: 4 
Bat, 
eae 
RARE OR USEFUL MINERALS. 
(By courtesy of the San Diego Daily Union.) 
ndred years ago a few patient 
for ious missions 
thoughout the Californi ld w 
Tr es; silver w 
ers, but little more weg than vague 
y tales can Sa uced in verifica- 
tion at the pres 
Be fore the pert of the first half Di 
bee: 
old pans, and 
Mining assumed = proper role of a 
legitimate busines 
the last Gunbiae of the century 
in nearly all lines of trade, the steadily 
increasing demand for all the metals, 
brid eva the Colorado 12 
ess aes desert 
which seeks new sources of supply in 
the face of the cheapening of produc- 
tion, augurs wil f e miner i 
region rich in — resources like © 
groans: Californi 
e yea gap e writer aay 
ate: ‘a the San hs sie Union a brief a 
notated list of the minerals ‘then. enous 
in iego couni has 
that may add to the imaportaios & of our 
- give a conservative estimate of values, 
and to avoid ex eee ration—the bane of 
mining enterpr 
Since the risen of the Julian gold 
mines about thirty years ago, San 
ed more than 
The 
produced thei 
other pen. 
the past year, and b 
oyed by Ge 
any, whose exports to this country have 
mines ih Baja California, shipments of 
salt, and other developments in cop- 
per, lead, ete., all tributary to 
Diego, iat bag elements in favor of a 
hopefu @: 
ACTINOLITE— Abundant in the 
ALABASTE abundance of ap- 
tern good aes of this form of $ 
