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Parkesburg, Sadsbury Township, Chester Co., Pennsylvania, USAi
Regional Level Types
Parkesburg- not defined -
Sadsbury TownshipTownship
Chester Co.County
PennsylvaniaState
USACountry

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Latitude & Longitude (WGS84): 39° 57' 7'' North , 75° 56' 3'' West
Latitude & Longitude (decimal): 39.95194,-75.93417
GeoHash:G#: dr452142v
Köppen climate type:Cfa : Humid subtropical climate
Nearest Settlements:
PlacePopulationDistance
Parkesburg3,687 (2017)1.5km
Atglen1,408 (2017)3.4km
Pomeroy401 (2017)4.3km
Christiana1,171 (2017)5.4km
Cochranville668 (2017)6.8km


Of Genth; "Finest locality in Sadsbury township, for the principal locality for Rutile in Chester County PA. Considerable quantity of Rutile had been collected in the early to mid 19th century, Doubly geniculated crystals up to a pound in weight had been found loose in surrounding soils and worked up by manufacturers of dental supplies, for coloring artificial teeth. also found embedded in Quartz and soils throughout the 7 mile long valley.

Regions containing this locality

North America PlateTectonic Plate

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


1 valid mineral.

Detailed Mineral List:

'Limonite'
Formula: (Fe,O,OH,H2O)
Habit: Pseudomorph after cubic Pyrite
Colour: Brown to reddish brown, submetalic luster
Description: One of several primary localities in Pennsylvania for the occurrance of Limonite pseudomorphs after cubic pyrite. Specimens tend to cubic form without notable abboration/distortions. Frequently sharp, with good pseudo crystal edging.
Rutile
Formula: TiO2
Habit: tetragonal usually conststing of several prisms , frequently in double "geniculated" twins
Colour: Reddish Brown, inclining to red
Description: the finest locality for Rutile in PA, where crystals up to a pound in weight were found (19th century). Large twined crystals were found elsewhere in the soils throughout this 7 mile long region, along the Sadsbury township area.
Reference: Second Geological Survey of Pensylvania: 1874 Preliminary Report on the Mineralogy of Pennsylvania: F. A. Genth, pgs. 44,45 and 97
'Tourmaline'
Formula: A(D3)G6(T6O18)(BO3)3X3Z
Habit: cylindrical
Description: occurs in Quartz
Reference: Second Geological Survey of Pensylvania: 1874 Preliminary Report on the Mineralogy of Pennsylvania: F. A. Genth, pg. 97

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
Rutile4.DB.05TiO2
Unclassified Minerals, Rocks, etc.
'Limonite'-(Fe,O,OH,H2O)
'Tourmaline'-A(D3)G6(T6O18)(BO3)3X3Z

List of minerals arranged by Dana 8th Edition classification

Group 4 - SIMPLE OXIDES
AX2
Rutile4.4.1.1TiO2
Unclassified Minerals, Mixtures, etc.
'Limonite'-(Fe,O,OH,H2O)
'Tourmaline'-A(D3)G6(T6O18)(BO3)3X3Z

List of minerals for each chemical element

HHydrogen
H Limonite(Fe,O,OH,H2O)
BBoron
B TourmalineA(D3)G6(T6O18)(BO3)3X3Z
OOxygen
O RutileTiO2
O Limonite(Fe,O,OH,H2O)
O TourmalineA(D3)G6(T6O18)(BO3)3X3Z
TiTitanium
Ti RutileTiO2
FeIron
Fe Limonite(Fe,O,OH,H2O)

Regional Geology

This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.

Click on geological units on the map for more information. Click here to view full-screen map on Macrostrat.org

Ordovician - Cambrian
443.8 - 541 Ma



ID: 2877282
Conestoga Formation

Age: Paleozoic (443.8 - 541 Ma)

Stratigraphic Name: Conestoga Formation

Description: Light-gray, thin-bedded, impure, contorted limestone having shale partings; conglomeratic at base; in Chester Valley, includes micaceous limestone in upper part, phyllite in middle, and alternating dolomite and limestone in lower part.

Comments: Original map source: Pennsylvania Bureau of Topographic and Geologic Survey, Department of Conservation and Natural Resources, Miles, C.E., and Whitfield, T.G., compilers, 2001, Bedrock Geology of Pennsylvania, edition: 1.0, digital map, scale 1:250,000.

Lithology: Major:{limestone}, Minor:{conglomerate,dolostone,phyllite}, Incidental:{shale}

Reference: Horton, J.D., C.A. San Juan, and D.B. Stoeser. The State Geologic Map Compilation (SGMC) geodatabase of the conterminous United States. doi: 10.3133/ds1052. U.S. Geological Survey Data Series 1052. [133]

Cambrian
485.4 - 541 Ma



ID: 3192822
Paleozoic sedimentary rocks

Age: Cambrian (485.4 - 541 Ma)

Lithology: Sedimentary rocks

Reference: Chorlton, L.B. Generalized geology of the world: bedrock domains and major faults in GIS format: a small-scale world geology map with an extended geological attribute database. doi: 10.4095/223767. Geological Survey of Canada, Open File 5529. [154]

Data and map coding provided by Macrostrat.org, used under Creative Commons Attribution 4.0 License

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Jefferis, William W. (1854), Mineralogy of Chester County: (1974 reproducton of Jefferis handwritten notes, Special reprint No. 2, Friends of Mineralogy/Region 3).
Genth, F. A. (1874), Second Geological Survey of Pennsylvania, Preliminary Report on the Mineralogy of Pennsylvania: 44-45, 97.
Gordon, Samual G. (1922) [1972 reprint] The Mineralogy of Pennsylvania: 54.


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