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Ch. 3: Precious Gem stones in 1883/84

Ch. 3: Precious Gem stones in 1883/84 Page of 75 Ch. 3: Precious Gem stones in 1883/84 Text size:minus plus Restore normal size   Mail page  Print this page
740
MINERAL RESOURCES.
2 carats each. One fine-cat light sea-green aquamarine beryl from Sumner, Maine, in Mrs. Merchant's cabinet, weighs about 7 carats.
One remarkably fine deep-blue gem from Eoyalston, Massachusetts, weighing over 10 carats, is in the United States National Museum, and in the same collection is one weighing 14 carats from Portland, Con­necticut, equal to almost any from Brazil for depth of blue color. Both of these localities have at times afforded line clear material. Some very clear white stones are obtained at Pearl hill, in Fitchburg, Massachu­setts, and are sold by the local jewelers. Dr. A. C. Hamlin owns a very fine golden yellow beryl of 4 carats from this locality.
Fine crystals of beryl of almost emerald green color, also beautiful yellowish green and bluish beryls, are found in Deshong's quarry, near Leiperville, Pennsylvania; the crystals are at times 12 inches long, of a yellowish green color. At Shaw & Ezra's quarry, near Chester, at Upper Providence, and in Middletown, Concord, and Marple townships, fine specimens have been found. Fine beryls also have beta observed at White Horse, 3 or 4 miles below Darby, Pennsylvania. Bluish green and blue beryls occur in the vicinity of Unionville, Newlin township, and on Brandy wine battlefield, in Birmingham township. One crystal, of a dark tourmaline green tint, over one-half inch long, in the cabinet of Mr. Michael Brodley, of Chester, Pennsylvania, is from Middletown, Delaware county, and would afford a fine gem. Some of the gems from here, especially those from the John Smith farm, have much the ap­pearance of bluish emeralds. The finest American golden yellow beryls are found at the Avondale quarries, Delaware county, Pennsylvania. A 20-carat gem is in the cabinet of Mrs. M. J. Chase, and material for another is in the cabinet of Mr. Clarence S. Bement. Mr. B. B. Cham­berlain has lately found six fine yellow beryls, 1 to 2 carats each, in Manhattanville, New York City.
The variety of beryl found at Goshen, Massachusetts, and called goshenite, occurs in pieces transparent enough to afford gems.
Phenakite.—About fifty crystals of phenakite have been found duriug the last year, of which fully one-quarter would aoffrd gems, some over 6 carats in weight and absolutely pellucid; the largest crystal found was 3 inches across ; the finer ones are equal in quality to the Siberian. They have been observed at the locality near Pike's peak(a), and also near Crystal peak small ones on amazonstone. At the topaz locality at Florissant, El Paso county, Colorado, phenakite(b) occurs in small but very iuteresting crystals implanted on microcliue amazonstone. They are rarely over 5 millimeters in size, and are very transparent and colorless, and would afford minute gems.
Euclase.—Only one mention is made of euclase in the United States.(c)
Ch. 3: Precious Gem stones in 1883/84 Page of 75 Ch. 3: Precious Gem stones in 1883/84
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US Geol. Surv. 1883-84. Gemstones, Metals.
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