Vote for your favorite mineral in #MinCup26! - Sphalerite vs. Anorthite
Both zinc ore Sphalerite and calcium plagioclase feldspar Anorthite have perfect cleavage that will split cleanly if you hit them with a hammer, but only one can claim a larger split of your votes!
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Autunite from
Margnac II Mine, Compreignac, Bellac, Haute-Vienne, Nouvelle-Aquitaine, France


08432650017272027456820.jpg
Autunite

Margnac II Mine, Compreignac, Bellac, Haute-Vienne, Nouvelle-Aquitaine, France
04340210017272045776644.jpg
Autunite

Margnac II Mine, Compreignac, Bellac, Haute-Vienne, Nouvelle-Aquitaine, France
09973920017272045783266.jpg
Autunite

Margnac II Mine, Compreignac, Bellac, Haute-Vienne, Nouvelle-Aquitaine, France
04800940017272045781298.jpg
Autunite

Margnac II Mine, Compreignac, Bellac, Haute-Vienne, Nouvelle-Aquitaine, France
08432650017272027456820.jpg
Autunite

Margnac II Mine, Compreignac, Bellac, Haute-Vienne, Nouvelle-Aquitaine, France
00599230017362496275274.jpg
Autunite

Margnac II Mine, Compreignac, Bellac, Haute-Vienne, Nouvelle-Aquitaine, France
05470540017362496285298.jpg
Autunite

Margnac II Mine, Compreignac, Bellac, Haute-Vienne, Nouvelle-Aquitaine, France
00108510017362496281403.jpg
Autunite

Margnac II Mine, Compreignac, Bellac, Haute-Vienne, Nouvelle-Aquitaine, France
08432650017272027456820.jpg
Autunite

Margnac II Mine, Compreignac, Bellac, Haute-Vienne, Nouvelle-Aquitaine, France
04340210017272045776644.jpg
Autunite

Margnac II Mine, Compreignac, Bellac, Haute-Vienne, Nouvelle-Aquitaine, France
09973920017272045783266.jpg
Autunite

Margnac II Mine, Compreignac, Bellac, Haute-Vienne, Nouvelle-Aquitaine, France
05513850017272045809281.jpg
Autunite

Margnac II Mine, Compreignac, Bellac, Haute-Vienne, Nouvelle-Aquitaine, France
Locality type:Mine
Classification
Species:Autunite
Formula:Ca(UO2)2(PO4)2 · 10-12H2O
Comments:Very good specimen in Smithsonian Istitution 11.7 x 5.6 cm n.120743 [see Bancroft, Peter (1973) The World's Finest Minerals and Crystals].
Quality for species:Good crystals or rich for species - important (!)
Significance:Classic locality for this mineral (see references.)
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Sabugalite4
Data
Mineral Data:Click here to view Autunite data
Locality Data:Click here to view Margnac II Mine, Compreignac, Bellac, Haute-Vienne, Nouvelle-Aquitaine, France
Photo GalleryView Gallery (15 photos)
Data Identifiers
Mindat Occurrence Record ID:112288
Long-form Identifier:1:3:112288:6
GUID (UUID V4):0
Nearest other occurrences of Autunite
1.1km (0.7 miles) ⓘMargnac Mine, Compreignac, Bellac, Haute-Vienne, Nouvelle-Aquitaine, France
1.5km (0.9 miles) ⓘVénachat, Compreignac, Bellac, Haute-Vienne, Nouvelle-Aquitaine, France
1.6km (1.0 miles) ⓘLa Vielle Crouzille, Saint-Sylvestre, Limoges, Haute-Vienne, Nouvelle-Aquitaine, France
2.0km (1.2 miles) ⓘPeny quarry, Compreignac, Bellac, Haute-Vienne, Nouvelle-Aquitaine, France
2.1km (1.3 miles) ⓘLa Bachellerie quarry, Compreignac, Bellac, Haute-Vienne, Nouvelle-Aquitaine, France
2.3km (1.4 miles) ⓘAugères-en-Razès, Razès, Bellac, Haute-Vienne, Nouvelle-Aquitaine, France
2.3km (1.5 miles) ⓘFanay Mine, Saint-Sylvestre, Limoges, Haute-Vienne, Nouvelle-Aquitaine, France
2.7km (1.7 miles) ⓘChabanne quarry, Compreignac, Bellac, Haute-Vienne, Nouvelle-Aquitaine, France
3.8km (2.4 miles) ⓘLe Fraisse Mine, Razès, Bellac, Haute-Vienne, Nouvelle-Aquitaine, France
7.3km (4.5 miles) ⓘVilatte-Haute Quarry (Alluaud Quarry), Vilatte Quarries (La Vilate), Chanteloube, Razès, Bellac, Haute-Vienne, Nouvelle-Aquitaine, France
References
Bancroft, Peter (1973) The World's Finest Minerals and Crystals.tav XXXV
(1998) La Radioactivité et les Minéraux Uranifères Français. Le Règne Minéral - Hors Série 4. Les Éditions du Piat
 
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