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Laumontite from
North Wisconsin prospect, Douglas Co., Wisconsin, USA

Locality type:Pit
Formula:CaAl2Si4O12 · 4H2O
Validity:Believed Valid
References:Grant, U. S. (1901), Preliminary report on the copper-bearing rocks of Douglas County, Wisconsin, 2nd Ed.: Wisconsin Geological and Natural History Survey Bull. VI Economic Series #3, 83 p.
Mineral Data:Click here to view Laumontite data
Locality Data:Click here to view North Wisconsin prospect, Douglas Co., Wisconsin, USA
Nearest other occurrences of Laumontite
2.9km (1.8 miles) Chippewa Mine, Douglas Co., Wisconsin, USA
3.8km (2.4 miles) Buckley Quarry, Amnicon Falls, Douglas Co., Wisconsin, USA
5.3km (3.3 miles) South Range Quarry, South Range, Douglas Co., Wisconsin, USA
7.7km (4.8 miles) Starkweather copper prospects (Edwards Mine; Wisconsin Mine), Douglas Co., Wisconsin, USA
10.5km (6.5 miles) Mabel Nelson Road Quarry, Douglas Co., Wisconsin, USA
18.0km (11.2 miles) Copper Creek prospects, Douglas Co., Wisconsin, USA
20.4km (12.7 miles) Percival copper prospects, Douglas Co., Wisconsin, USA
41.8km (26.0 miles) Knife River, St. Louis Co., Minnesota, USA
44.2km (27.4 miles) Montrose copper prospects, Bayfield Co., Wisconsin, USA
49.8km (31.0 miles) Mudge prospect, Washburn Co., Wisconsin, USA
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