P The Wesk Ameriten. Scientid. 
a pro- 
ay county has yet become a 
b and 
See iotite, lepidolite, 
vite 
MOLYBDENITE—Composed of 60 per 
cent molybdenum an cent of 
sulphur; a soft, black fuses: foliated 
mineral, often mistaken hite. 
1898—about 10 tons, worth $50 per ton. 
iV 
the granitic format 
ORTHOCLA pean tule is not rare 
near oat were ane urs at hi ulian and 
in Baja Califo nsiderable 
quantity, aoa of a Saati suable for 
the manufact fine ware. 
OBSID TAN.-Reported to occur in im- 
mense quantities near the head of the 
f ja California. I 
Ss 
e 
Diego store evidently Brag from 
_ a distance by the Indians, who valu 
' volcanic ian for ae eianatebbake of 
nts. 
—P step aye Boats siliea) 
2 this Me 
num, calcium, and nat Has bee 
report ¥ obscuring fe Southern Cal- 
ifornia. 
PLATI —This metal is found on- 
ly in siekgine condition, sometimes al- 
loyed with iridium or osmium: nug- 
get weighing nearly two pounds (only 
2%x3 inches in size) from Co 
has been tag as 
the largest in America, with in- 
trinsic value of $350. It dein tained 85 
per cent pure platin d 15 per out 
cent of gold, palladium and rhodium, ULFENITE—Very fine crystals of : 
nd had a bluish-white lustre. This molybdate of lead were ed by — 
- ties. 
= jasper, e 
ae throughout ates 
Co 
an covered by the writer at 
IS 
at nearly two million dollars, ba Sg of 
it coming from ssia, w 
deal goes to waste in California. a 
eubic pec weighs 1,344 pounds, worth * 
$240 a pound. 
PL teenie is graphite. 
PREHNITE—San ipaigie Pie Cali- 
fornia, associated dolar 
UARTZ—A cu ingtecs gamer! 162 
pounds, 12.34 cu chai tent making a ton. 
Occurs a an endless number of varie- 
agate, carnelian, chaleee 
er, ote wood in variou 
for its Chaleedony park, w 
eserved in te beautiful 
or 
jiato omaceous ¢ wl occurs on the sea | 
eat near San 
RHODONITE “Between San Diego — 
and Colton.” ws 
RUTILE—This rare mineral was dis- 
t M 
in 1898, but not in any 
quantity 
SALT See halite 
ae ee ‘tourmaline; 
Commnaney 
aan 
cade on the 
water of various thermal springs in 
jouthern and Baja California are 
strongly impregnated with this mineral. 
ri ot toa 
Elsinore, Cal. 
WOLFR ANiGt  Boutnae t Arizona; 
reported from ony California, but I 
aera Mss oceurs at : 
See nite. 
believe seen The quality 
is worth ri He $700 ae tole and 
d i 
in consequence sadepboharana shoul 
r it. 
btain 
the Bes in 1888 from some of the 
min rab of Salton, in the Colo- 
bins ghar 
CORUND UM—Reported from Los 
Angeles county by Dana. 
