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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Siderite from
Madonna di Fucinaia (Madonna della Fucinaia) slag heaps, Campiglia Marittima, Livorno Province, Tuscany, Italy


Locality type:Slag Locality
Classification
Species:Siderite
Formula:FeCO3
Formation:Post-mining/Anthropogenic
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Siderite data
Locality Data:Click here to view Madonna di Fucinaia (Madonna della Fucinaia) slag heaps, Campiglia Marittima, Livorno Province, Tuscany, Italy
Data Identifiers
Mindat Occurrence Record ID:84018
Long-form Identifier:1:3:84018:9
GUID (UUID V4):0
Nearest other occurrences of Siderite
0.6km (0.4 miles) ⓘTemperino Mine, Campiglia Marittima, Livorno Province, Tuscany, Italy
1.9km (1.2 miles) ⓘLanzi Mine (Cava del Piombo; Buca del Piombo), Campiglia Marittima, Livorno Province, Tuscany, Italy
2.5km (1.6 miles) ⓘBotro ai Marmi, Campiglia Marittima, Livorno Province, Tuscany, Italy
3.2km (2.0 miles) ⓘMonte Valerio, Campiglia Marittima, Livorno Province, Tuscany, Italy
3.9km (2.5 miles) ⓘPodere del Cancellino (Podere dei Cancellini) slag locality, Castagneto Carducci, Livorno Province, Tuscany, Italy
12.3km (7.6 miles) ⓘBaratti slag locality, Piombino, Livorno Province, Tuscany, Italy
17.7km (11.0 miles) ⓘMarsiliana slag locality, Valpiana - Castello della Marsiliana area slag sites, Massa Marittima, Grosseto Province, Tuscany, Italy
22.3km (13.9 miles) ⓘLa Sassa carbonate vein, La Sassa, Montecatini Val di Cecina, Pisa Province, Tuscany, Italy
25.2km (15.7 miles) ⓘAccesa mine, Massa Marittima, Grosseto Province, Tuscany, Italy
26.6km (16.5 miles) ⓘNiccioleta Mine, Massa Marittima, Grosseto Province, Tuscany, Italy
References
Int. Assoc. of Collectors of Slag Minerals, 10 (2), 4-6.
 
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