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Ilsemannite from
Four Corners Mine (Pallaoro Lease; Morrison Mine), Foothill Mining District, Jefferson County, Colorado, USA


Locality type:Mine
Classification
Species:Ilsemannite
Formula:Mo3O8 · nH2O
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Ilsemannite data
Locality Data:Click here to view Four Corners Mine (Pallaoro Lease; Morrison Mine), Foothill Mining District, Jefferson County, Colorado, USA
Data Identifiers
Mindat Occurrence Record ID:377474
Long-form Identifier:1:3:377474:8
GUID (UUID V4):0
Nearest other occurrences of Ilsemannite
0.2km (0.1 miles) ⓘMann Ranch (Vanadium Queen Mine; Mann Mine), Foothill Mining District, Jefferson County, Colorado, USA
3.4km (2.1 miles) ⓘState Highway 74 roadcut, Foothill Mining District, Jefferson County, Colorado, USA
35.9km (22.3 miles) ⓘLucania tunnel, Idaho Springs Mining District (Virginia Mining District), Clear Creek County, Colorado, USA
48.7km (30.2 miles) ⓘMogul Tunnel Occurrence, Boulder County Tungsten Mining District, Boulder County, Colorado, USA
60.5km (37.6 miles) ⓘFair Day Mine, Jamestown Mining District, Boulder County, Colorado, USA
References
 
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To cite: Ralph, J., Von Bargen, D., Martynov, P., Zhang, J., Que, X., Prabhu, A., Morrison, S. M., Li, W., Chen, W., & Ma, X. (2025). Mindat.org: The open access mineralogy database to accelerate data-intensive geoscience research. American Mineralogist, 110(6), 833–844. doi:10.2138/am-2024-9486.
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