Vote for your favorite mineral in #MinCup26! - Sphalerite vs. Anorthite
Both zinc ore Sphalerite and calcium plagioclase feldspar Anorthite have perfect cleavage that will split cleanly if you hit them with a hammer, but only one can claim a larger split of your votes!
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Goethite from
Bridgeport, Bridgeport Borough, Montgomery County, Pennsylvania, USA


Classification
Species:Goethite
Formula:Fe3+O(OH)
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Malachite3
Quartz3
Data
Mineral Data:Click here to view Goethite data
Locality Data:Click here to view Bridgeport, Bridgeport Borough, Montgomery County, Pennsylvania, USA
Data Identifiers
Mindat Occurrence Record ID:360505
Long-form Identifier:1:3:360505:9
GUID (UUID V4):0
Nearest other occurrences of Goethite
1.4km (0.9 miles) ⓘLimestone quarry, Upper Merion Township, Montgomery County, Pennsylvania, USA
2.3km (1.4 miles) ⓘHenderson Station, Upper Merion Township, Montgomery County, Pennsylvania, USA
6.5km (4.0 miles) ⓘSpring Mill Iron Ore pits, Whitemarsh Township, Montgomery County, Pennsylvania, USA
8.4km (5.2 miles) ⓘWhim shaft, Perkiomen Mines, Audubon, Lower Providence Township, Montgomery County, Pennsylvania, USA
8.5km (5.3 miles) ⓘD.O. Hitner's Mine, Whitemarsh Township, Montgomery County, Pennsylvania, USA
8.6km (5.3 miles) ⓘEcton Mine, Perkiomen Mines, Audubon, Lower Providence Township, Montgomery County, Pennsylvania, USA
12.4km (7.7 miles) ⓘOreland, Springfield Township, Montgomery County, Pennsylvania, USA
14.6km (9.1 miles) ⓘEdge Hill Iron Company Mine, Springfield Township, Montgomery County, Pennsylvania, USA
14.9km (9.3 miles) ⓘBrookdale Mine, Schuylkill Township, Chester County, Pennsylvania, USA
16.9km (10.5 miles) ⓘMill Lane Farms (Great Valley Corporate Center), East Whiteland Township, Chester County, Pennsylvania, USA
References
Samuel S. Gordon, pg. 217
Gordon, Samuel G. (1922) The Mineralogy of Pennsylvania. Special Publication 1. The Academy of Natural Sciences of Philadelphia 255pp.
 
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