GA General Notes. { January, 
the sapphire, garnet and olivine found in Montana and New Mexico; 
or from the beds of streams and decomposing rock, as the moss 
agate from Colorado; or on beaches, as the agate, chlorastrolite 
and thomsonite from Lake Superior. 
Some eighty-eight different minerals occur in the United States 
which have been used as gems. Twelve of these occur in the 
the United States only. 
Diamonds are not mined in this country, although they have 
occasionally been found at a number of localities. A large dia ; 
mond was found at Manchester, opposite Richmond, Va., bya 
laborer employed in grading one of the streets. It was an octa- 
hedron, and weighed, after it was cut, over ten karats. It was worth | 
$5000 before cutting. The principal localities for sapphires and 
rubles are in New Mexico, Arizona, and Southern Colorado, where 
they occur in the sand, often on ant-hills. Garnets occur in the 
clear crystal for optical purposes is almost entirely Brazilian, w 
the good material found here rarely. reaches the proper channe® 
Although agates are abundant here, nearly all the polished spe’ 
mens sold in America have been polished in Germany, having 
originally came from Brazil and Uracuay. Moss agates, howevel 
are collected here in large quantities, although the cutting is doi 
jade 
A large number of minerals have been cut and used as gems % i 
ornaments, and Mr. Kunz’ ic i ice in sti lating 
to localities, but this will doubtedless be rectified in another yea! 
report. ot 
In stating that sphene does not occur as a gem in the Unie 
States, Mr. Kunz has evidently not been aware of the beau eo 
transparent yellow crystals, often of large size, which occut | 
Delaware county, Pennsylvania. - 
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