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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Langite from
Ecton Mine, Perkiomen Mines, Audubon, Lower Providence Township, Montgomery County, Pennsylvania, USA


07847700017362330599672.jpg
Langite, etc.

Ecton Mine, Perkiomen Mines, Audubon, Lower Providence Township, Montgomery County, Pennsylvania, USA
01795240017418300006653.jpg
Langite, etc.

Ecton Mine, Perkiomen Mines, Audubon, Lower Providence Township, Montgomery County, Pennsylvania, USA
05199500017418292374111.jpg
Langite, etc.

Ecton Mine, Perkiomen Mines, Audubon, Lower Providence Township, Montgomery County, Pennsylvania, USA
00192450017418300079632.jpg
Langite, etc.

Ecton Mine, Perkiomen Mines, Audubon, Lower Providence Township, Montgomery County, Pennsylvania, USA
00598780017362328247243.jpg
Langite, etc.

Ecton Mine, Perkiomen Mines, Audubon, Lower Providence Township, Montgomery County, Pennsylvania, USA
03498390017418296739285.jpg
Langite, etc.

Ecton Mine, Perkiomen Mines, Audubon, Lower Providence Township, Montgomery County, Pennsylvania, USA
06117050017418291827559.jpg
Langite, etc.

Ecton Mine, Perkiomen Mines, Audubon, Lower Providence Township, Montgomery County, Pennsylvania, USA
06908300017418297027444.jpg
Langite, etc.

Ecton Mine, Perkiomen Mines, Audubon, Lower Providence Township, Montgomery County, Pennsylvania, USA
07847700017362330599672.jpg
Langite, etc.

Ecton Mine, Perkiomen Mines, Audubon, Lower Providence Township, Montgomery County, Pennsylvania, USA
08549820017418300076219.jpg
Langite, etc.

Ecton Mine, Perkiomen Mines, Audubon, Lower Providence Township, Montgomery County, Pennsylvania, USA
08112960017419547151405.jpg
Langite, etc.

Ecton Mine, Perkiomen Mines, Audubon, Lower Providence Township, Montgomery County, Pennsylvania, USA
01649910017418300087750.jpg
Langite, etc.

Ecton Mine, Perkiomen Mines, Audubon, Lower Providence Township, Montgomery County, Pennsylvania, USA
Locality type:Mine
Classification
Species:Langite
Formula:Cu4(SO4)(OH)6 · 2H2O
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Sphalerite3
Posnjakite3
Malachite3
Quartz3
Brochantite3
Linarite3
Pseudomalachite1
Data
Mineral Data:Click here to view Langite data
Locality Data:Click here to view Ecton Mine, Perkiomen Mines, Audubon, Lower Providence Township, Montgomery County, Pennsylvania, USA
Photo GalleryView Gallery (3 photos)
Data Identifiers
Mindat Occurrence Record ID:150558
Long-form Identifier:1:3:150558:0
GUID (UUID V4):0
Nearest other occurrences of Langite
82.8km (51.4 miles) ⓘCornwall Mines (Cornwall Iron Mine), Cornwall Borough (Cornwall), Lebanon County, Pennsylvania, USA
References
Barnes, John H. (1973) Three New Minerals for Pennsylvania. Pennsylvania Geology: 4 (4): 30-31.
Smith, Robert C., II (1974) Interesting Minerals from Pennsylvania Lead-Zinc Occurrences. Pennsylvania Geology: 5 (3): 8-9.
Reed, Juliet C. (1976), Annotated Biblio. of Mins New to the PA List 1965-1974, The Min. Soc. of PA, Inc.: 52
 
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