Vote for your favorite mineral in #MinCup26! - Hafnon vs. Putnisite
It's a pair of tiny minerals of unusual chemistry as orange Hafnon battles with purple Putnisite.
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Magnetite from
Marsiliana slag locality, Valpiana - Castello della Marsiliana area slag sites, Massa Marittima, Grosseto Province, Tuscany, Italy


Locality type:Slag Locality
Classification
Species:Magnetite
Formula:Fe2+Fe23+O4
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Magnetite data
Locality Data:Click here to view Marsiliana slag locality, Valpiana - Castello della Marsiliana area slag sites, Massa Marittima, Grosseto Province, Tuscany, Italy
Data Identifiers
Mindat Occurrence Record ID:1549711
Long-form Identifier:1:3:1549711:2
GUID (UUID V4):0
Nearest other occurrences of Magnetite
0.8km (0.5 miles) ⓘCascata slag locality, Valpiana - Castello della Marsiliana area slag sites, Massa Marittima, Grosseto Province, Tuscany, Italy
1.8km (1.1 miles) ⓘForra slag locality, Valpiana - Castello della Marsiliana area slag sites, Massa Marittima, Grosseto Province, Tuscany, Italy
5.7km (3.6 miles) ⓘArialla slag locality, Valpiana - Castello della Marsiliana area slag sites, Massa Marittima, Grosseto Province, Tuscany, Italy
7.6km (4.7 miles) ⓘAccesa mine, Massa Marittima, Grosseto Province, Tuscany, Italy
10.6km (6.6 miles) ⓘRocchette Pannocchiesi, Massa Marittima, Grosseto Province, Tuscany, Italy
11.3km (7.0 miles) ⓘNiccioleta Mine, Massa Marittima, Grosseto Province, Tuscany, Italy
13.6km (8.5 miles) ⓘGavorrano Mine, Gavorrano, Grosseto Province, Tuscany, Italy
14.9km (9.2 miles) ⓘPoggetti Butelli slag locality, Scarlino, Grosseto Province, Tuscany, Italy
17.5km (10.8 miles) ⓘTemperino Mine, Campiglia Marittima, Livorno Province, Tuscany, Italy
18.3km (11.4 miles) ⓘLanzi Mine (Cava del Piombo; Buca del Piombo), Campiglia Marittima, Livorno Province, Tuscany, Italy
References
Costagliola, P., Benvenuti, M., Chiarantini,L., Bianchi, S., Di Benedetto, F., Paolieri, M., and Rossato, L. (2008) Impact of ancient metal smelting on arsenic pollution in the Pecora River Valley, Southern Tuscany, Italy. Applied Geochemistry, 23: 1241–1259.
 
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