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It's a showdown with rare earth elemental ore Monazite-(Ce) and index mineral Andalusite.
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Sandstone from
Leonard Mine (Franktown), Castle Rock Area, Douglas County, Colorado, USA


Locality type:Mine
Classification
Type:Sandstone
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Sandstone data
Locality Data:Click here to view Leonard Mine (Franktown), Castle Rock Area, Douglas County, Colorado, USA
Data Identifiers
Mindat Occurrence Record ID:1045031
Long-form Identifier:1:3:1045031:0
GUID (UUID V4):0
Nearest other occurrences of Sandstone
24.0km (14.9 miles) ⓘPenley No. 1 Lease Occurrence, Kassler Area, Douglas County, Colorado, USA
28.4km (17.6 miles) ⓘHarris Mn Deposit (Old Fred Smith Ranch Deposit), Elbert Area, Elbert County, Colorado, USA
31.3km (19.4 miles) ⓘBuckley Field Manganese deposits (Denver Basin Mn deposits), Watkins area, Arapahoe County, Colorado, USA
44.1km (27.4 miles) ⓘBurgess Claim (Diamond J Ranch Deposit), Colorado Springs, El Paso County, Colorado, USA
44.8km (27.9 miles) ⓘMann Ranch (Vanadium Queen Mine; Mann Mine), Foothill Mining District, Jefferson County, Colorado, USA
45.0km (28.0 miles) ⓘFour Corners Mine (Pallaoro Lease; Morrison Mine), Foothill Mining District, Jefferson County, Colorado, USA
54.1km (33.6 miles) ⓘBlair Athol Mine, Colorado Springs, El Paso County, Colorado, USA
61.8km (38.4 miles) ⓘKenmuir Quarry, Colorado Springs, El Paso County, Colorado, USA
65.5km (40.7 miles) ⓘOld Leyden Mine, Foothill Mining District, Jefferson County, Colorado, USA
72.6km (45.1 miles) ⓘGenevieve Occurrence, Cripple Creek Mining District, Teller County, Colorado, USA
References
(2005) Mineral Resources Data System (MRDS), US Geological Survey.
 
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