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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Pyrite from
Keokuk, Lee County, Iowa, USA


03931140017371386152569.jpg
Pyrite, etc.

Keokuk, Lee County, Iowa, USA
00839950017371386168007.jpg
Pyrite

Keokuk, Lee County, Iowa, USA
03931140017371386152569.jpg
Pyrite, etc.

Keokuk, Lee County, Iowa, USA
00353950017272013002831.jpg
Pyrite

Keokuk, Lee County, Iowa, USA
03931140017371386152569.jpg
Pyrite, etc.

Keokuk, Lee County, Iowa, USA
00353950017272013002831.jpg
Pyrite

Keokuk, Lee County, Iowa, USA
Locality type:City
Classification
Species:Pyrite
Formula:FeS2
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Quartz5
Calcite2
Data
Mineral Data:Click here to view Pyrite data
Locality Data:Click here to view Keokuk, Lee County, Iowa, USA
Photo GalleryView Gallery (2 photos)
Data Identifiers
Mindat Occurrence Record ID:102447
Long-form Identifier:1:3:102447:0
GUID (UUID V4):0
Nearest other occurrences of Pyrite
2.7km (1.7 miles) ⓘGray Quarry, Hamilton, Hancock County, Illinois, USA
3.3km (2.1 miles) ⓘJacob's Geode Mine, Hamilton, Hancock County, Illinois, USA
5.5km (3.4 miles) ⓘGeode Glen Park, Warsaw, Hancock County, Illinois, USA
7.8km (4.9 miles) ⓘLarry Creek, Hancock County, Illinois, USA
15.9km (9.9 miles) ⓘWayland, Clark County, Missouri, USA
17.0km (10.6 miles) ⓘSt. Francisville, Clark County, Missouri, USA
17.6km (10.9 miles) ⓘSheffler's Rock Shop and Geode mine, Clark County, Missouri, USA
34.0km (21.1 miles) ⓘCessford Quarry, Dallas City, Hancock County, Illinois, USA
34.9km (21.7 miles) ⓘCanton geode locality, Lewis County, Missouri, USA
40.9km (25.4 miles) ⓘO'Neal Quarry, Plymouth, Hancock County, Illinois, USA
References
Zeitner (1956), Midwest Gem Trails
 
and/or  
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