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Arialla slag locality, Valpiana - Castello della Marsiliana area slag sites, Massa Marittima, Grosseto Province, Tuscany, Italyi
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Latitude & Longitude (WGS84):
43° 2' 6'' North , 10° 53' 36'' East
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Massa Marittima | 5,707 (2014) | 1.4km |
| Ghirlanda | 213 (2014) | 2.4km |
| Valpiana | 499 (2014) | 4.9km |
| Niccioleta | 248 (2014) | 6.5km |
| Prata | 584 (2014) | 9.2km |
Other Languages:
Italian:
Località di scorie di Arialla, Siti di scorie dell'area Valpiana - Castello della Marsiliana (Siti di scorie della Media Valle Pecora), Massa Marittima, Provincia di Grosseto, Toscana, Italia
The Arialla site was an important metallurgical centre, also documented by the “Ordinamenta super artem fossarum rameriae et argenteriae civitatis Massae”. Active in the 13th and 14th centuries, the site is located just 1 km from Massa Marittima.
According to Simonin (1858), the slags at Arialla amounted to approximately 25,000 t; however, owing to 20th century reuse, only sporadic hand-sized fragments can now be found on the ground. These fragments are dark grey, tapped slags without evident flow textures; they are more compact and
less glassy in aspect than the Marsiliana slags. The Arialla slags are lime-rich and textures are dominated by the presence of calcium silicates, in particular, melilite and kirschsteinite. The latter is a quench phase occurring as crystals that indicate disequilibrium crystallisation. Conversely, the polyhedral habit of melilite suggests equilibrium crystallisation in the melt. Apart from sulphides, other strongly backscattering grains also often occur: metallic grain with compositions varying from pure metals (Pb, Sb or Fe) to metal alloys (usually Cu–Sb, Fe–As alloys).
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsMineral List
19 valid minerals.
Rock Types Recorded
Note: data is currently VERY limited. Please bear with us while we work towards adding this information!
Select Rock List Type
Alphabetical List Tree DiagramDetailed Mineral List:
| ⓘ Calcite Formula: CaCO3 |
| ⓘ Cerussite Formula: PbCO3 |
| ⓘ Covellite Formula: CuS |
| ⓘ Fayalite Formula: Fe2+2SiO4 |
| ⓘ Galena Formula: PbS |
| ⓘ 'Glass' |
| ⓘ Goethite Formula: Fe3+O(OH) |
| ⓘ Hedenbergite Formula: CaFe2+Si2O6 |
| ⓘ Hematite Formula: Fe2O3 |
| ⓘ Kirschsteinite Formula: CaFe2+SiO4 |
| ⓘ Maghemite Formula: (Fe3+0.67◻0.33)Fe3+2O4 |
| ⓘ Magnetite Formula: Fe2+Fe3+2O4 |
| ⓘ 'Melilite Group' Formula: Ca2M(XSiO7) |
| ⓘ Native Antimony Formula: Sb |
| ⓘ Native Copper Formula: Cu |
| ⓘ Native Iron Formula: Fe |
| ⓘ Native Lead Formula: Pb |
| ⓘ Petedunnite Formula: CaZnSi2O6 |
| ⓘ Quartz Formula: SiO2 |
| ⓘ Sphalerite Formula: ZnS |
| ⓘ Wüstite Formula: FeO |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 1 - Elements | |||
|---|---|---|---|
| ⓘ | Native Copper | 1.AA.05 | Cu |
| ⓘ | Native Lead | 1.AA.05 | Pb |
| ⓘ | Native Iron | 1.AE.05 | Fe |
| ⓘ | Native Antimony | 1.CA.05 | Sb |
| Group 2 - Sulphides and Sulfosalts | |||
| ⓘ | Covellite | 2.CA.05a | CuS |
| ⓘ | Sphalerite | 2.CB.05a | ZnS |
| ⓘ | Galena | 2.CD.10 | PbS |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | Goethite | 4.00. | Fe3+O(OH) |
| ⓘ | Wüstite | 4.AB.25 | FeO |
| ⓘ | Magnetite | 4.BB.05 | Fe2+Fe3+2O4 |
| ⓘ | Maghemite | 4.BB.15 | (Fe3+0.67◻0.33)Fe3+2O4 |
| ⓘ | Hematite | 4.CB.05 | Fe2O3 |
| ⓘ | Quartz | 4.DA.05 | SiO2 |
| Group 5 - Nitrates and Carbonates | |||
| ⓘ | Calcite | 5.AB.05 | CaCO3 |
| ⓘ | Cerussite | 5.AB.15 | PbCO3 |
| Group 9 - Silicates | |||
| ⓘ | Fayalite | 9.AC.05 | Fe2+2SiO4 |
| ⓘ | Kirschsteinite | 9.AC.05 | CaFe2+SiO4 |
| ⓘ | Hedenbergite | 9.DA.15 | CaFe2+Si2O6 |
| ⓘ | Petedunnite | 9.DA.15 | CaZnSi2O6 |
| Unclassified | |||
| ⓘ | 'Glass' | - | |
| ⓘ | 'Melilite Group' | - | Ca2M(XSiO7) |
List of minerals for each chemical element
Other Regions, Features and Areas containing this locality
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