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Ch. 9: The Feldspar Group, including Amazonite, Moonstone, Sunstone, etc.

Ch. 9: The Feldspar Group, including Amazonite, Moonstone, Sunstone, etc. Page of 364 Ch. 9: The Feldspar Group, including Amazonite, Moonstone, Sunstone, etc. Text size:minus plus Restore normal size   Mail page  Print this page
164                       GEMS AND PRECIOUS STONES IN THE
through it, very closely approaches sunstone in appearance. Beautiful varieties of orthoclase sunstone were discovered near Crown Point, N. Y., by William P. Blake. On the Horace Greeley Farm, at Chappaqua, N. Y., small pieces of orthoclase sunstone were found, almost as fine as that from Swedestrandr Norway. It also occurs at Amelia Court House, Amelia County, Va. A very interesting variety of sunstone was found by J. A. D. Stephenson at the quarry in Statesville, N. C; the re­flections are as fine as those of the Norwegian, but the spots of color are very small. Several hundred dollars' worth from this locality have been sold as gems.
SUNSTONE—AVENTURINE ORTHOCLASE
Labrador spar is found in large quantities in Lewis and Es­sex Counties, N. Y., and as boulders in the drift, all the way down to Long Island and New Jersey. In Lewis County the boulders are so plentiful in one of the rivers that it has been named Opalescent River. Large quantities of this labradorite rock are quarried at Keeseville, Essex County, N. Y., for monu­mental and building work. It is polished there for similar pur­poses at a cost of about one dollar a square foot, and finds a ready sale under the name of Au Sable granite. The Young Men's Christian Association Building at Burlington, Vt., and one of the public buildings in Minneapolis are built with it. Within a few miles of Amity, in Orange County, a boulder of fine mate­rial for specimens, weighing over 2 tons and showing the charac­teristic chatoyant play of colors, was found. In Pennsylvania labradorite occurs at Mineral Hill, Chester County, and opposite New Hope, Bucks County; and also in the Wichita Mountains, Ark. Mention is made by Professors Genth and Kerr ' of a curi-
1 Minerals and Mineral localities of North Carolina, p. 48.
Ch. 9: The Feldspar Group, including Amazonite, Moonstone, Sunstone, etc. Page of 364 Ch. 9: The Feldspar Group, including Amazonite, Moonstone, Sunstone, etc.
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