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Apophyllite Group from
Isle Royal Mines, Portage Township, Houghton County, Michigan, USA


Locality type:Mine
Classification
Species:'Apophyllite Group' (not an IMA approved species)
Formula:AB4[Si8O20]X · 8H2O
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Apophyllite Group data
Locality Data:Click here to view Isle Royal Mines, Portage Township, Houghton County, Michigan, USA
Data Identifiers
Mindat Occurrence Record ID:70181
Long-form Identifier:1:3:70181:7
GUID (UUID V4):0
Nearest other occurrences of Apophyllite Group
36.6km (22.7 miles) ⓘCliff Mine, Allouez Township, Keweenaw County, Michigan, USA
40.4km (25.1 miles) ⓘSt. Clair Mine, Phoenix, Houghton Township, Keweenaw County, Michigan, USA
45.4km (28.2 miles) ⓘNorthwestern Mine, Central, Houghton Township, Keweenaw County, Michigan, USA
46.9km (29.1 miles) ⓘCopper Falls Mine, Copper Falls, Eagle Harbor Township, Keweenaw County, Michigan, USA
66.7km (41.4 miles) ⓘClark Mine, Copper Harbor, Grant Township, Keweenaw County, Michigan, USA
References
Morris, Tom (1983) Michigan Mineralogy. A locality Index. Rocks & Minerals, 58 (3). 107-113 doi:10.1080/00357529.1983.11767128p.109
 
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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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