Vote for your favorite mineral in #MinCup26! - Monazite-(Ce) vs. Andalusite
It's a showdown with rare earth elemental ore Monazite-(Ce) and index mineral Andalusite.
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Andalusite from
Le Coreux, Salmchâteau, Vielsalm, Luxembourg, Wallonia, Belgium


Locality type:Occurrence
Classification
Species:Andalusite
Formula:Al2(SiO4)O
Chemical Analyses:
Oxide wt%:
1
SiO234.78 %
TiO20.02 %
Al2O351.80 %
Mn2O312.67 %
Fe2O30.97 %
MgO0.06 %
Total:100.30 %
Empirical formulas:
1(Al0.70Mn3+0.27Fe3+0.02)Al1.00O1.00[Si0.98Al0.02O4.00]
Sample references:
1FKM-336 point #2
Frank K. Mazdab collection; sample FKM-336; https://www.rockptx.com/fkm-326-to-fkm-350/#FKM-336
Comments:Small rounded crystals (0.5 mm) in dark violet banded shale.
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Andalusite data
Locality Data:Click here to view Le Coreux, Salmchâteau, Vielsalm, Luxembourg, Wallonia, Belgium
Data Identifiers
Mindat Occurrence Record ID:993555
Long-form Identifier:1:3:993555:6
GUID (UUID V4):0
Nearest other occurrences of Andalusite
0.4km (0.3 miles) ⓘCoticule mines (west), Salmchâteau, Vielsalm, Luxembourg, Wallonia, Belgium
0.5km (0.3 miles) ⓘSalmchâteau, Vielsalm, Luxembourg, Wallonia, Belgium
0.6km (0.3 miles) ⓘCoticule mines (east), Salmchâteau, Vielsalm, Luxembourg, Wallonia, Belgium
1.3km (0.8 miles) ⓘThier des Carrières, Cahay, Vielsalm, Luxembourg, Wallonia, Belgium
4.8km (3.0 miles) ⓘThier del Preu quarry, Petit-Sart, Lierneux, Liège, Wallonia, Belgium
8.6km (5.3 miles) ⓘRegné, Bihain, Vielsalm, Luxembourg, Wallonia, Belgium
12.2km (7.6 miles) ⓘMargraff quarry, Recht, Sankt-Vith, Liège, Wallonia, Belgium
35.3km (21.9 miles) ⓘHerzogenhügel, Ternell, Eupen, Liège, Wallonia, Belgium
55.1km (34.2 miles) ⓘRockeskyller Kopf summit, Rockeskyll volcanic complex, Rockeskyll, Gerolstein, Vulkaneifel, Rhineland-Palatinate, Germany
55.4km (34.5 miles) ⓘAuf Dickel (incl. Nonnental), Rockeskyll volcanic complex, Rockeskyll, Gerolstein, Vulkaneifel, Rhineland-Palatinate, Germany
References
Hatert, F., Deliens, M., Fransolet, A.-M., Van Der Meersche, E. (2002) Les minéraux de Belgique (2nd ed.) Muséum des Sciences Naturelles, Bruxelles.
 
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