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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Xenotime-(Y) from
Cotopaxi Feldspar Mine (Cotopaxi Feldspar prospect; Henry pegmatite), Cotopaxi Pegmatite area, Cotopaxi, Cotopaxi Mining District, Fremont County, Colorado, USA


Locality type:Mine
Classification
Species:Xenotime-(Y)
Formula:Y(PO4)
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Xenotime-(Y) data
Locality Data:Click here to view Cotopaxi Feldspar Mine (Cotopaxi Feldspar prospect; Henry pegmatite), Cotopaxi Pegmatite area, Cotopaxi, Cotopaxi Mining District, Fremont County, Colorado, USA
Data Identifiers
Mindat Occurrence Record ID:34993
Long-form Identifier:1:3:34993:6
GUID (UUID V4):0
Nearest other occurrences of Xenotime-(Y)
2.3km (1.4 miles) ⓘCotopaxi Area Occurrence, Fremont County, Colorado, USA
8.0km (5.0 miles) ⓘBill and Bud 2 and 4 (LGO Lode Claims), Cottonwood Creek Area, Fremont County, Colorado, USA
11.7km (7.3 miles) ⓘBenton Prospect (Hilltop prospect), Cottonwood Creek Area, Fremont County, Colorado, USA
14.2km (8.8 miles) ⓘJim 8 Occurrence, Lookout Mountain Area, Fremont County, Colorado, USA
20.6km (12.8 miles) ⓘNiles Mine, Gem Park complex, Custer County, Colorado, USA
23.2km (14.4 miles) ⓘMocking Bird Claim (Little Joe), Hayden Pass Area, Saguache County, Colorado, USA
24.4km (15.2 miles) ⓘBlue Bird Claim, Hayden Pass Area, Saguache County, Colorado, USA
28.4km (17.6 miles) ⓘOlhio Prospect, Sand Gulch Area, Fremont County, Colorado, USA
28.9km (18.0 miles) ⓘUnnamed pegmatite, Sand Gulch Area, Fremont County, Colorado, USA
36.4km (22.6 miles) ⓘRam Lode and Pam Lode (Ramdohrite lode), Blake Mining District (Mirage Mining District; Cotton Creek Mining District), Saguache County, Colorado, USA
References
Eckel, Edwin Butt; Cobban, Robert R.; Mosburg, Shirley K.; Foord, Eugene E. (1997) Minerals of Colorado. Fulcrum Publishing.pp.14-15
 
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