124 P. Collier—Remarkable Nugget of Platinum. 
Cr203 SE ies a ee ee 54:'944 
eO 31°567 
Al,Os 5°69 
mOgce - S131 
CaO 3°405 
1 ee 941 
8 
There appeared in the interstices of the mass a little earth 
which probably accounts for the above results of analysis. By 
deducting these impurities the above analysis would be: 
Cr,03 63°511 
FeO wail Pe Pee ORES ee ose 36'489 
100°000 
An analysis of the platinum gave as follows: 
atinu fee 83-814 
TO a de a we 11°040 
Palladium __-_-_. 3°105 
PGi 25s 627 
Rhodium 286 
Copper 397 
I ie ee cae ey 1°953 
e “069 
Magnesia 030 
100°321 
Owing to the small quantity of the mineral taken for analy- 
sis, 1°45 grams, and the difficulty in separation, the above anal- 
ysis is perhaps not rigidly exact, and in fact the presence of 
osmium was unmistakable, although its amount was undeter- 
mined. The above analysis, however, shows conclusively that 
the specimen is a genuine nugget of native platinum, and 
upon an investigation of the person who found the same, It 
seems established beyond question that his statement is correct, 
since the mode of its occurrence and the locality is such as t 
render the statement quite credible. | 
Several other specimens were said to have been found at the 
time when this was discovered, but owing to, their real value 
being unknown they were mislaid or lost. A personal exam 
ination of the locality shows it to be in a drift deposit which Is 
of considerable extent. Adjacent rocks exposed upon the 
w 
constituting this deposit are age from rock not present in 
he 
established, but so far as I can learn this nugget appears to ‘ 
remarkable not only for its size, but also as an indication © 
