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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Phlogopite from
Titignano, Orvieto, Terni Province, Umbria, Italy


Classification
Species:Phlogopite
Formula:KMg3(AlSi3O10)(OH)2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Phlogopite data
Locality Data:Click here to view Titignano, Orvieto, Terni Province, Umbria, Italy
Data Identifiers
Mindat Occurrence Record ID:306385
Long-form Identifier:1:3:306385:9
GUID (UUID V4):0
Nearest other occurrences of Phlogopite
11.9km (7.4 miles) ⓘVispi Quarry, San Venanzo, Terni Province, Umbria, Italy
12.4km (7.7 miles) ⓘSan Venanzo Volcano, San Venanzo, Terni Province, Umbria, Italy
33.0km (20.5 miles) ⓘMontefiascone caldera, Montefiascone, Viterbo Province, Lazio, Italy
39.5km (24.5 miles) ⓘPoggio Pinzo (Gradoli pozzolana quarry), Gradoli, Viterbo Province, Lazio, Italy
39.9km (24.8 miles) ⓘMontenero Quarry, Onano, Viterbo Province, Lazio, Italy
44.5km (27.6 miles) ⓘCasale Rosati, Valentano, Viterbo Province, Lazio, Italy
46.2km (28.7 miles) ⓘCastellaccio di Petrignano, Viterbo, Viterbo Province, Lazio, Italy
47.3km (29.4 miles) ⓘCase Collina, Pitigliano, Grosseto Province, Tuscany, Italy
49.2km (30.6 miles) ⓘPian di San Martino, Vetralla, Viterbo Province, Lazio, Italy
50.1km (31.1 miles) ⓘTre Croci, Vetralla, Viterbo Province, Lazio, Italy
References
Stoppa, Francesco, Liu, Yu (1995) Chemical composition and petrogenetic implications of apatites from some ultra-alkaline Italian rocks. European Journal of Mineralogy, 7 (2) 391-402 doi:10.1127/ejm/7/2/0391
 
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