New-York tribune., 1898-10-23
RARE MINERALS ~ ARIZONA.
THE VALUABLE FIND OF TUNGSTEN MADE
BY WILLIAM NIVEN

William Niven. the New-York mncralogst,
whose finds Of rare and valuable minerals on
Manhattan Island and at West Paterson. n. j.,
in 1895 and 1896. and discovery of ruined city
with temples, pyramids and the remains Of
dwellings Of great population in the noun
tains Of the State of Guerrero Mexico. were de-
scrbed at the time in The Tribune returned to
New York yesterday from prospecting trip
through Arizona He had budget Of nforma-
ton Of considerable interest TO the scientific
world. After Mr. Niven's return from Mexico
in July last he vent to Arizona with The special
purpose Of locating and developing, if possible.
minerals If scientific interest and commercial
value which are not found in any large guam
titles. il they have hitherto been found at all. in
this country. Mr.. Niven prospected from 1873
to 1884 in Colorado NewMeXicO, Arizona and
Mexico and discovered the minerals thoro gum
mite. yttrate and nivenite in Liano County.
Tex. in 1850. and aguilarite at Guanaguato.
Mexico in 1891. all Of which were new to sci
erce. and his recent trip was entirely successful
in carrying out its special purpose.
Mr.. Niven found a number of minerals in
Arizona in association with the tungsten ore.
ar important and recent discovery. which has
never before been obtained in this country in
considerable quantity. Specimens of these min
erals have been forwarded for examination to
Samuel l.. Penfied professor Of mineral"gy in
the Sheffield Scientific School Of Yale University,
and have been authoritatively identified by him
The minerals which it will be Of interest to
the scientific world to know. have been found in
Arizona associated with tungsten ore include
scheclitc. malachite. azurite. sphalerte nema-
tite. wilemite. pyrite. orthoclase. galenlte and
iuorte Gold AMI silver were also found IN the
same locality in small quantities some OF the
ore running 81 in gold and seventeen ounces in
silver 10 the ton.
The most important Of the minerals Is the
tungsten ore which with its associates was To-
Gated about four and a half miles northwest
from Dragon Summit. On the Southern Pacific
Railroad at "A point called Russeliville. The
spot is IN spur Of the Dragon Mountains
\ coarse textured gray granite is most apuh-
dant there and through it numerous white quartz
veins extend to the surface. only in these
veins have the tungstate ores been touhh me
course IF the veins IL about northeast and south
yyast forming two parallel ridges about twelve
hundred wards apart and extending for dis
lance. Of about four miles through u rugged
country IF great bare granite blocks. reaching
IN some instances 4 height If more than three
hundred feet
Tungsten ore has never b"fpr" been FOUND III
this country IN any large quantity The supply
has heretofore come from Australia, Austria ana
Germany II - especially valuable as an alloy
for hardening steel and Is useful in the manu-
facture IF guns and projectes. IN account Of
its hardness. and Of tools subjected To great
wear dies and stamps. II ~ extensively used IN
Germany and England for armor plate and the
purposes mentioned 1t is also one Of the ee-
nents employed in X-ray machines. and Is
utilized in giving soft silk rich lustre. AS a
non -combustiblc It's use has been suggested in
the manufacture Of freproof drop curtains and
drenen's clothes.
The quantity Of tungsten ore in sight IN Ari-