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Scientific American Supplement, No. 598, June 18, 1887 by Various
page 116 of 124 (93%)
found it. The fragment, as it is, will furnish slabs 8 inches square and
from 1/3 to 1 inch thick. The original crystal would have furnished a ball
from 4½ to 5 inches in diameter, and almost perfect. A number of fine
agates of various kinds were found by Mr. F.C. Yeomans at the same
locality.

The meccanite from Cumberland, R.I., is often spotted with white quartz. It
has been cut into oval stones several inches in length, which take a fine
polish. This quality, coupled with its hardness, makes it a desirable
ornamental gem stone.

Mr. Kunz records the discovery, by himself, in the largest mass of the
Glorieta Mountain (Santa Fe County, N.M.), of pieces of peridot of
sufficient transparency to afford gems one-fifth of an inch in length.

Large quantities of turquoise from Los Cevillos, N.M., have been sold, both
as cabinet specimens and gems; but, unfortunately, many of those of the
finest color have been found to be artificially colored.

Malachite in large masses has been found at the Copper Queen mine at
Bisbee, Oregon. One of these masses weighed 15 pounds and others were quite
as large. All were of good enough quality and large enough for table tops.

In conclusion, Mr. Kunz says that "the National Museum collection of gems,
formed by Prof. F.W. Clarke, is now one of the most complete, for species,
in the United States, and as many of the gems are of more than average
merit, and all can have access to them, this is one of the best
opportunities afforded the student in this country."

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