 | | Report (issue) | | MINERALOGY OF PENNSYLVANIA 104 Na 2Al 2 Si3 Oi .2H 2 O; SiO 2 47.4, A1 2 O 3 26.8, Na 2 O 16.3, Lenni, Delaware...Delaware County. Crystals. Eyerman, 1911, 11. Composition: Analysis: Fe 2 O3 CaO Na 2 below 115 above...LOCALITIES: Berks County: Birdsboro, and Gickerville; Delaware County: Leiperville, Lenni (druses of colorless...Felton's farm (Chester), and Ward's quarry; Montgomery County: Sumneytown, and Perkiomenville ; Philadelphia:...cut east of Reading (probably Birdsboro), Berks County. White, Smith, 1910, 540. silky mass of radiating |  | | Report (issue) | | Rocks Of the Piedmont Upland Maryland, Pennsylvania And Delaware By NANCY C. PEARRE and ALLEN V. HEYL,...districts ______ -._-_____-_____-___._. Montgomery County, Md_-_-_---_---_-_-----------_-__--_-_-_Soldiers...descriptions_______________________________________ Montgomery County, Md___-_______________________.__ Etchison mine_____-_-...Index map of the Piedmont Upland, Maryland, Pennsylvania, Page and Delaware__.____________________-____--_-_-_--709...concentrates from lode mines and placer deposits in Pennsylvania and Maryland before 1900-___-_-__.-______-- |  | | Book (volume) | | references, among them may be mentioned: Vermont, Pennsylvania, North Carolina, Oregon, Kansas, Alabama, Ohio...Kobuk jade locality. Descriptions of San Diego County, California, gemstones and the mines in which they...the generous assistance of many residents of that county. My special thanks are extended to Elbert H. McMacken...in the small cavities in limestone in Herkimer County, New York, only one quartz crystal may be found...optical effect or phenomenon, 1.¢., star sapphire, moonstone, cat’s eye, etc. The second is seldom used except |  | | Journal (issue) | | the Poor Farm in the southeast section of Lincoln County, North Carolina, and is suggestive of the place...nation of quartz and tourmaline, also from Lincoln County, North Carolina. The tourmalines are nearly uniform...feldspar on the Gillette farm, along with lepidolite, albite, large fine crystals of apatite, beryl and quartz...important " find " was that made by Mr. Harn in Lincoln County, of a single deposit of emerald green muscovite...Nittany Moun tains, near the town of Leinont, Centre County, Penn. The crystals occur singly or in parallel |
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