Vote for your favorite mineral in #MinCup26! - Cuprite vs. Halite
While externally similar shapes, these two minerals are very different inside.
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Illite from
Cougar Mine, San Miguel County, Colorado, USA


Locality type:Mine
Classification
Species:Muscovite var: Illite
Formula:K0.65Al2.0[Al0.65Si3.35O10](OH)2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Illite data
Locality Data:Click here to view Cougar Mine, San Miguel County, Colorado, USA
Data Identifiers
Mindat Occurrence Record ID:795190
Long-form Identifier:1:3:795190:9
GUID (UUID V4):0
Nearest other occurrences of Illite
32.7km (20.3 miles) ⓘMi Vida Mine, Lisbon Valley Mining District, San Juan County, Utah, USA
76.8km (47.7 miles) ⓘPlacerville Mining District, Lower San Miguel Mining District, San Miguel County, Colorado, USA
83.0km (51.6 miles) ⓘCalico Peak Alunite Deposit, Horse Creek, Rico Mining District (Pioneer Mining District), Rico Mountains, Dolores County, Colorado, USA
84.1km (52.3 miles) ⓘCarpenter Mine, Lower San Miguel Mining District, San Miguel County, Colorado, USA
90.1km (56.0 miles) ⓘSilver Creek Molybdenum deposit, Silver Creek, Rico Mining District (Pioneer Mining District), Rico Mountains, Dolores County, Colorado, USA
References
Shawe, D.R., (2011), Uranium-vanadium deposits of the Slick Rock district, Colorado: U.S. Geological Survey Professional Paper 576-F, 80 p., 20 plates.
 
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