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Bell's Mill, Bellwood, Blair Co., Pennsylvania, USA

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Latitude & Longitude (WGS84): 40° 36' 21'' North , 78° 19' 23'' West
Latitude & Longitude (decimal): 40.60583,-78.32306
GeoHash:G#: dr0r18nfh
Köppen climate type:Dfb : Warm-summer humid continental climate


Type and Dana locality for the mineral celestine, which occurs in thin seams of pale greyish blue and parallel-fibrous crystals. specimens from this locality had been analyzed as early as 1797 by the German mineralogist M. H. Klaproth. (Beitrage zur Chemischen Kenniniss der Mineralkorper, II, pgs. 92-98).

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


3 valid minerals. 1 (TL) - type locality of valid minerals.

Detailed Mineral List:

Anhydrite
Formula: CaSO4
Reference: Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 418.
Celestine (TL)
Formula: SrSO4
Habit: fiberous habit
Colour: pale greyish blue
Description: Occurs in thin seams of a pale greyish blue and as parallel-fibrous veinlets.
Reference: Second Geological Survey 1874, Preliminary Report on the Mineralogy of Pennsylvania; F. A. Genth
Dolomite
Formula: CaMg(CO3)2
Reference: Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 418.

List of minerals arranged by Strunz 10th Edition classification

Group 5 - Nitrates and Carbonates
'Dolomite'5.AB.10CaMg(CO3)2
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
'Anhydrite'7.AD.30CaSO4
'Celestine' (TL)7.AD.35SrSO4

List of minerals arranged by Dana 8th Edition classification

Group 14 - ANHYDROUS NORMAL CARBONATES
AB(XO3)2
Dolomite14.2.1.1CaMg(CO3)2
Group 28 - ANHYDROUS ACID AND NORMAL SULFATES
AXO4
Anhydrite28.3.2.1CaSO4
Celestine (TL)28.3.1.2SrSO4

List of minerals for each chemical element

CCarbon
C DolomiteCaMg(CO3)2
OOxygen
O AnhydriteCaSO4
O CelestineSrSO4
O DolomiteCaMg(CO3)2
MgMagnesium
Mg DolomiteCaMg(CO3)2
SSulfur
S AnhydriteCaSO4
S CelestineSrSO4
CaCalcium
Ca AnhydriteCaSO4
Ca DolomiteCaMg(CO3)2
SrStrontium
Sr CelestineSrSO4

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

Paleozoic
251.902 - 541 Ma



ID: 3187973
Paleozoic sedimentary rocks

Age: Phanerozoic (251.902 - 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]

Devonian - Silurian
358.9 - 443.8 Ma



ID: 2717555
Keyser and Tonoloway Formations, undivided

Age: Paleozoic (358.9 - 443.8 Ma)

Stratigraphic Name: Keyser Formation; Tonoloway Formation; Coeymans Formation; Rondout Formation; Decker Formation; Wills Creek Formation

Description: In descending order: Keyser Formation--medium-gray, crystalline to nodular, fossiliferous limestone; upper part laminated and mud-cracked; not present east of Harrisburg; passes into lower Coeymans, Rondout, and Decker Formations in the east. Tonoloway Formation--medium-gray, laminated, mud-cracked limestone containing some medium-dark- or olive-gray shale interbeds; lower part passes into Wills Creek Formation east and south; passes into Bossardville and Poxono Island beds in the east.

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:{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]

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

References

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Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Klaproth, M.H. (1797) Beitrage zur Chemischen Kenniniss der Mineralkorper, II, pgs. 92-98 (as Schwefelsaurer Strontianit aus Pennsylvanien).
Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II. John Wiley and Sons, Inc., New York, 7th edition, revised and enlarged, 1124 pp.: 418.


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