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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Magnetite from
Montenero Quarry, Onano, Viterbo Province, Lazio, Italy


08823180017367087278225.jpg
Magnetite

Montenero Quarry, Onano, Viterbo Province, Lazio, Italy
01234400017272026935240.jpg
Magnetite

Montenero Quarry, Onano, Viterbo Province, Lazio, Italy
01291360017272026959296.jpg
Magnetite, etc.

Montenero Quarry, Onano, Viterbo Province, Lazio, Italy
03459250017272026949517.jpg
Magnetite

Montenero Quarry, Onano, Viterbo Province, Lazio, Italy
08984020017366429614669.jpg
Magnetite

Montenero Quarry, Onano, Viterbo Province, Lazio, Italy
07232080017367087282081.jpg
Magnetite

Montenero Quarry, Onano, Viterbo Province, Lazio, Italy
04652360017367087291381.jpg
Magnetite, etc.

Montenero Quarry, Onano, Viterbo Province, Lazio, Italy
02035300017367087296566.jpg
Magnetite

Montenero Quarry, Onano, Viterbo Province, Lazio, Italy
06879470017367087295276.jpg
Magnetite

Montenero Quarry, Onano, Viterbo Province, Lazio, Italy
01234400017272026935240.jpg
Magnetite

Montenero Quarry, Onano, Viterbo Province, Lazio, Italy
01291360017272026959296.jpg
Magnetite, etc.

Montenero Quarry, Onano, Viterbo Province, Lazio, Italy
03459250017272026949517.jpg
Magnetite

Montenero Quarry, Onano, Viterbo Province, Lazio, Italy
Locality type:Quarry
Classification
Species:Magnetite
Formula:Fe2+Fe23+O4
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Haüyne5
Titanite2
Cuspidine2
Fluorophlogopite1
Biotite1
Sanidine1
Fluorapatite1
Magnesio-hornblende1
Data
Mineral Data:Click here to view Magnetite data
Locality Data:Click here to view Montenero Quarry, Onano, Viterbo Province, Lazio, Italy
Photo GalleryView Gallery (9 photos)
Data Identifiers
Mindat Occurrence Record ID:47063
Long-form Identifier:1:3:47063:4
GUID (UUID V4):0
Nearest other occurrences of Magnetite
0.9km (0.5 miles) ⓘPoggio Pinzo (Gradoli pozzolana quarry), Gradoli, Viterbo Province, Lazio, Italy
2.8km (1.8 miles) ⓘLatera solfatara, Latera, Viterbo Province, Lazio, Italy
7.7km (4.8 miles) ⓘCase Collina, Pitigliano, Grosseto Province, Tuscany, Italy
8.8km (5.5 miles) ⓘCasale Rosati, Valentano, Viterbo Province, Lazio, Italy
9.1km (5.7 miles) ⓘMt Saliette, Valentano, Viterbo Province, Lazio, Italy
18.8km (11.7 miles) ⓘMontefiascone caldera, Montefiascone, Viterbo Province, Lazio, Italy
20.6km (12.8 miles) ⓘMonte della Croce, Montefiascone, Viterbo Province, Lazio, Italy
37.5km (23.3 miles) ⓘCastellaccio di Petrignano, Viterbo, Viterbo Province, Lazio, Italy
38.3km (23.8 miles) ⓘPian di San Martino, Vetralla, Viterbo Province, Lazio, Italy
38.7km (24.1 miles) ⓘSan Martino al Cimino, Viterbo, Viterbo Province, Lazio, Italy
References
Cresta, S., Duronio, F., Mancinella, D. (2002): Geositi e sistema delle arre protette del Lazio: idee per la geoconservazione. Il Cercapietre, 1-2/2002, 48-55
 
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