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It's a showdown with rare earth elemental ore Monazite-(Ce) and index mineral Andalusite.
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Dolomite from
Mulford Quarry, Winnebago County, Illinois, USA


Locality type:Quarry
Classification
Species:Dolomite
Formula:CaMg(CO3)2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Dolomite data
Locality Data:Click here to view Mulford Quarry, Winnebago County, Illinois, USA
Data Identifiers
Mindat Occurrence Record ID:432509
Long-form Identifier:1:3:432509:3
GUID (UUID V4):0
Nearest other occurrences of Dolomite
9.3km (5.8 miles) ⓘIrene Quarry, Irene, Boone County, Illinois, USA
41.1km (25.5 miles) ⓘCole Quarry, Avon, Rock County, Wisconsin, USA
45.5km (28.3 miles) ⓘStebbins mine, Stephenson County, Illinois, USA
63.9km (39.7 miles) ⓘErin Mound Prospect, Stephenson County, Illinois, USA
75.2km (46.7 miles) ⓘConco Mine, North Aurora, Kane County, Illinois, USA
75.6km (47.0 miles) ⓘFort Quarry (Hausz Brothers Inc.), Jefferson County, Wisconsin, USA
79.9km (49.6 miles) ⓘNewkirk lead mine, Green County, Wisconsin, USA
86.4km (53.7 miles) ⓘMount Carroll Quarry, Mount Carroll, Carroll County, Illinois, USA
88.1km (54.7 miles) ⓘFitchburg Lead Mine, Fitchburg, Dane County, Wisconsin, USA
91.3km (56.8 miles) ⓘGratiot copper prospect, Gratiot area, Lafayette County, Wisconsin, USA
References
MinRec: Mar,1995
 
and/or  
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