| | Report (issue) | DESCRIPTIVE MINERALOGY OF PENNSYLVANIA 104 Na 2Al 2 Si3 Oi .2H 2 O; SiO 2 47.4, A1 2 O 3 26.8, Na...Na 2 O 16.3, Lenni, Delaware County. Crystals. Eyerman, 1911, 11. Composition: Analysis: Fe 2 O3 CaO...Sp.gr LOCALITIES: Berks County: Birdsboro, and Gickerville; Delaware County: Leiperville, Lenni (druses...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 (volume) | GEOLOGY OF THE McCALLS FEBEY-QUABBYVILLE DISTEICT PENNSYLVANIA BY ELEANORA BLISS KNOPF AND ANNA I. JONAS...General geology of the Piedmont province in Pennsylvania. Geology of the Piedmont upland in Maryland...___-__-_--__-____.-______----__ Glenarm series in Pennsylvania._---______---.____-__.__ Cockeysville marble...overlain by Kinzers shale, exposed in cut on the Pennsylvania Railroad near Vintage; B, Vintage dolomite in...---------50 4. A, Kinzers pseudoconglomerate on Pennsylvania Railroad west of Kinzers; B, Basal Conestoga |
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