 | | Journal (article/letter/editorial) | | CLASSIC PEGMATITE OCCURRENCES IN Delaware County, Pennsylvania JOSEPH J . PETERS Department of Mineral...I N E S T S P E C I M E N S O F spessartine, almandine, microcline, and beryl ever found in North America...collected from a few granite pegmatites in Delaware County, Pennsylvania, near Philadelphia (Figure 1). The quarries...specimens: Leiper's Upper and Lower Avondale quarries, Avondale; Leiper's quarry, Springfield Township; and...and Deshong's quarry, Ridley-Nether Providence townships (Figure 2). The fascinating history and mineralogy |  | | Journal (article/letter/editorial) | | New York, New York 10024 GARNETS from Delaware Coun Pennsylvania Figure 1: Spessartine (Sp Alm34Pyr )...from Sycamore Mill (Bishop's Mill), Delaware County, Pennsylvania. A M N H 10808. Bement collection via...M E N S from pegmatites located in Delaware County, Pennsylvania. On the basis of microprobe analyses...analyses of two garnets from Springfield and one garnet from Leiperville, Peters (1984) recommended that "garnets..."garnets from Leiper's quarries at Springfield and Avondale that are not chemi颅 cally analyzed be termed |  | | Report (issue) | | & Series: Mineral Group: Forms a series with almandine. Garnet group. Occurrence: Common in granite...Islands, Greece. In the USA, in Leiper's quarry, Avondale, Delaware Co., Pennsylvania; the Rutherford mine |  | | Book | | in. ) high from Tourmaline Queen Mine, San Diego County, Pala, California. Back Cover: Azurite and Malachite...In gems) Mg1SiO, Garnet group (see also gems) Almandine Fe3Al1(SiO,) 142 Spessart1ne Mn3 Alz(S1O,)1 143-... ~ 29 Native Gold Sheet on Quartz El Dorado County; California 30 5 cm (2 In.) high Native Gold...across Native Copper in Calcite Hancock, Houghton County, Michigan 12 cm (4% in.) across 37 38 Native...Erigland 7 cm (21/., in.) across Pyrite in Shale Springfield, llhno1s 7 cm (2 戮 in.} diameter 45 Pyrite |  | | Book (edition) | | describes sites under of the nearest town and county. and the many maps included book contain such...hazards as well. Rocks can fall from a shattered quarry wall, a cliff, or an overhang. Someone on a rocky...associated with the gem material. Oregon thunder a quarry, eggs, for example, are in volcanic beds; tourmaline...pink hue (right) from the Sunnyside Mine, San Juan County, Colorado. MOTTLED AGATE from Chihuahua, Mexico...usually veined with black. This is from Siskiyou County, California. z'^m-: LABRADORITE, the feldspar |  | | Journal (issue) | | four miles of the little town of Moab, in Grand county, near where the Grand River finds a tortuous way...seen the natural limestone bridge of Rockbridge county, Va., he will likely make comparisons that will...the first place, Southeastern Utah, where Grand county lies, has never been thoroughly explored ; then...GRANITE QUARRIES, WITH THAT KNOWN AS THE SWARTHMORE QUARRY. By Henry Clat Bordkn. [Read before the Students'...be found. The quarry furthest north and west of the group is known as " Swarthmore Quarry." The rock of |  | | Book (edition) | | abbreviations: Rep. (republic), prov. (province), co. (county), munic. (municipio), pref. (prefecture), dept...always included in text, except in the cases of the USA, UK, and the provinces Ontario and Quebec in Canada...Uintah County. Utah. and m (2.B. acanthite group). Monoclinic, C2/m, a,b,c Rio Blanco County. Colorado...Menzenschwand Scbwarzwald Mts., in the Sailauf quarry, Spessart Mts., Bavaria. both Germany, and from...coal dumps at Shamokin, Northumberland co., Pennsylvania, and at Chervonograd, LvivVolhynia basin, Ukraine |  | | Book (volume) | | Vivid blue matched benitoite gems from Sai, Benito County, California, consisting of 52 benitoites and 75...Cantlin, Ellis, ID; Jeannette B. Carillo, Gen1 Center USA, El Paso, TX; Gary Christopher, The Prospectors Cache...Resources, Vancouver, BC; Barbara L. Muntyan, Ouray County Historical Society, Ouray, CO; Merrill 0. Murphy... 15 Figure 6. Dallas Gem Mine in San Benito County, CA..............................................Benitoite recovery from alluvial deposits, San Benito County, CA ................ 29 Figure 8. Title page |  | | Book | | Red and gray sandstone shale, and limestone. PENNSYLVANIA 40 I 60 50 Ml I 80 KM 76掳 -, I II --...l0000unse THE GEOLOGY OF PENNSYLVANIA COMMONWEALTH OF PENNSYLVANIA Mark Schweiker, Governor DEPARTMENT...Geology Slippery Rock University Published by PENNSYLVANIA GEOLOGICAL SURVEY PITTSBURGH GEOLOGICAL SOCIETY...from Hyner View, Hyner Run Slate Park, Clinton County, showing accordant ridges in the Appalachian Plateaus...of the Ridge and Valley province in Huntingdon County. Flooded meanders of Raystown Lake on the Raystown |  | | Book (edition) | | springs in Columbia county, New York, and a region in the town of Hoosic, Rensselaer county, afford large quantities...gas. There is another locality at Canoga, Seneca county, where the water is in violent ebullition from...at Warm and Hot Springs in Buncombe At Bath, in county, N. C. and on the Washita in Arkansas. England...been met with, in Rutherford county, North Carolina, (fig. 4,) and Hall county, Georgia. The original rock...sometimes vertigenerally the case throughout central Pennsylvania and in some cases the beds are raised in immense |  | | Book (edition) | | springs in Columbia county, New York, and a region in the town of Hoosic, Rensselaer county, afford There is...at large quantities of this gas. Canoga, Seneca county, where the water is in violent ebulthe earth, ...at Warm and Hot Springs in Buncombe At Bath, in county, N. C. and on the Washita in Arkansas. lition ...been met with, in Rutherford county, North Carolina, (fig. 4,) and Hall county, Georgia. The original rock...as is generally the case throughout central Pennsylvania ; and in some cases the beds are raised in immense |  | | Book (edition) | | springs in Columbia county, New York, and a region in the town of Hoosic, Rensselaer county, afford large quantities...gas. There is another locality at Canoga, Seneca county, where the water is in violent ebullition from...Blue Ridge at Warm and Hot Springs in Buncombe county, N. C. and on the Washita in Arkansas. At Bath...been met with, in Rutherford county, North Carolina, (fig. 4,) and Hall county, Georgia. The original rock...sometimes vertigenerally the case throughout central Pennsylvania ; and in some cases the beds are raised in immense |  | | Book | | Arkansas Arizona California Colorado Connecticut Delaware Florida Georgia Hawaii Idaho Illinois Indiana...Carolina North Dakota Ohio Oklahoma Oregon Pennsylvania Rhode Island South Carolina South Dakota Tennessee...listed by county and community, range and distance. Whenever the collector crosses a county line, he will...of the county he is entering posted alongside the highway. By looking up the state and county, the user...guide can determine the collecting sites in that county by range and distance from the major cities and |  | | Book (edition) | | springs in Columbia county, New York, and a region in the to,vn of Hoosic, Rensselaer county, afford large...gas. There is another locality at Canoga, Seneca county, where the ,vater is in violent ebullition from...Blue Ridge at Warm and Hot Springs; in Buncombe county, N. C.; and on the Washita in Arkansas. At Bath...been met with, in Rutherford county, North Carolina, (fig. 4,) and Hall county, Georgia. The original rock...as is generally the case throughout central Pennsylvania ; and in some cases the beds are raised in immense |  | | Book (edition) | | springs in Columbia county, Ne路w York, and a region in the town of Hoosic, Rensselaer county, atroi路cl larg...Th,e ro is anotber locallty at Canoga,, Seneca county, where the ,vate1路 is in violent ebullition fi路om...met with, in Rutherford county, .r ot1.h Carolina, (fig. 4,,) and Hall county, Georgia. . The orig1nal...as is generally the ease throughout oent1al Pennsylvania ; and 1n some cases the beds are raised in immen-se...these a.l"e.as commeu,ces 011 the no1路th, u1 Pennsylvania, and so1:1theast,e rn Ohio, a11d s\veeping south |
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