Funtanafigu quarry, Marrubiu, Oristano Province, Sardinia, Italyi
| Regional Level Types | |
|---|---|
| Funtanafigu quarry | Quarry |
| Marrubiu | Municipality |
| Oristano Province | Province |
| Sardinia | Autonomous Region |
| Italy | Country |
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Latitude & Longitude (WGS84):
39° 46' 59'' North , 8° 43' 59'' East
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Morgongiori | 775 (2014) | 5.2km |
| Is Bangius | 109 (2014) | 5.2km |
| Pau | 299 (2014) | 6.0km |
| Ales | 1,300 (2014) | 7.2km |
| Villa Verde | 335 (2014) | 7.6km |
Other Languages:
Italian:
Cava Funtanafigu, Marrubiu, Oristano, Sardegna, Italia
The rhyolite quarry is about 4-5 km northeast of the town of Marrubiu and about 20 km southeast of Oristano. Known for excellent osumilite crystals.
Note on the mineral list: At least some "cordierites" from this locality are actually an amorphous phase (possibly a pseudomorph), see Dillen (2022) and https://www.mindat.org/message.php?m=586359
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsMineral List
11 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:
| ⓘ Almandine Formula: Fe2+3Al2(SiO4)3 |
| ⓘ Cordierite Formula: Mg2Al4Si5O18 |
| ⓘ 'Garnet Group' Formula: X3Z2(SiO4)3 |
| ⓘ Hematite Formula: Fe2O3 Habit: hexagonal tabular Colour: opaque black with a pronounced metallic lustre |
| ⓘ Mullite Formula: Al4+2xSi2-2xO10-x |
| ⓘ Muscovite Formula: KAl2(AlSi3O10)(OH)2 Colour: brown |
| ⓘ Osumilite Formula: K◻2Fe2+2Al3[Al2Si10O30] Habit: tabular Colour: black to blackish blue, sometimes coated with a brownish layer (reminiscent of a possible pseudomorph?) Description: This is actual Osumilite, see paper by Olsen & Bunch, 1970.
SEM-EDS performed by Joy Desor. |
| ⓘ Pseudobrookite Formula: Fe2TiO5 |
| ⓘ Quartz Formula: SiO2 |
| ⓘ Sanidine Formula: K(AlSi3O8) |
| ⓘ Topaz Formula: Al2(SiO4)(F,OH)2 Description: Individual crystals are usually smaller than 1 mm. |
| ⓘ Tridymite Formula: SiO2 Habit: Hexagonal plates, complex shapes and aggregates of multiple crystals. Frequently twinned. Description: SEM-EDS performed by Joy Desor. |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 4 - Oxides and Hydroxides | |||
|---|---|---|---|
| ⓘ | Hematite | 4.CB.05 | Fe2O3 |
| ⓘ | Pseudobrookite | 4.CB.15 | Fe2TiO5 |
| ⓘ | Quartz | 4.DA.05 | SiO2 |
| ⓘ | Tridymite | 4.DA.10 | SiO2 |
| Group 9 - Silicates | |||
| ⓘ | Almandine | 9.AD.25 | Fe2+3Al2(SiO4)3 |
| ⓘ | Mullite | 9.AF.20 | Al4+2xSi2-2xO10-x |
| ⓘ | Topaz | 9.AF.35 | Al2(SiO4)(F,OH)2 |
| ⓘ | Cordierite | 9.CJ.10 | Mg2Al4Si5O18 |
| ⓘ | Osumilite | 9.CM.05 | K◻2Fe2+2Al3[Al2Si10O30] |
| ⓘ | Muscovite | 9.EC.15 | KAl2(AlSi3O10)(OH)2 |
| ⓘ | Sanidine | 9.FA.30 | K(AlSi3O8) |
| Unclassified | |||
| ⓘ | 'Garnet Group' | - | X3Z2(SiO4)3 |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| H | ⓘ Topaz | Al2(SiO4)(F,OH)2 |
| O | Oxygen | |
| O | ⓘ Almandine | Fe32+Al2(SiO4)3 |
| O | ⓘ Cordierite | Mg2Al4Si5O18 |
| O | ⓘ Hematite | Fe2O3 |
| O | ⓘ Mullite | Al4+2xSi2-2xO10-x |
| O | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| O | ⓘ Osumilite | K◻2Fe22+Al3[Al2Si10O30] |
| O | ⓘ Pseudobrookite | Fe2TiO5 |
| O | ⓘ Quartz | SiO2 |
| O | ⓘ Sanidine | K(AlSi3O8) |
| O | ⓘ Topaz | Al2(SiO4)(F,OH)2 |
| O | ⓘ Tridymite | SiO2 |
| O | ⓘ Garnet Group | X3Z2(SiO4)3 |
| F | Fluorine | |
| F | ⓘ Topaz | Al2(SiO4)(F,OH)2 |
| Mg | Magnesium | |
| Mg | ⓘ Cordierite | Mg2Al4Si5O18 |
| Al | Aluminium | |
| Al | ⓘ Almandine | Fe32+Al2(SiO4)3 |
| Al | ⓘ Cordierite | Mg2Al4Si5O18 |
| Al | ⓘ Mullite | Al4+2xSi2-2xO10-x |
| Al | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| Al | ⓘ Osumilite | K◻2Fe22+Al3[Al2Si10O30] |
| Al | ⓘ Sanidine | K(AlSi3O8) |
| Al | ⓘ Topaz | Al2(SiO4)(F,OH)2 |
| Si | Silicon | |
| Si | ⓘ Almandine | Fe32+Al2(SiO4)3 |
| Si | ⓘ Cordierite | Mg2Al4Si5O18 |
| Si | ⓘ Mullite | Al4+2xSi2-2xO10-x |
| Si | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| Si | ⓘ Osumilite | K◻2Fe22+Al3[Al2Si10O30] |
| Si | ⓘ Quartz | SiO2 |
| Si | ⓘ Sanidine | K(AlSi3O8) |
| Si | ⓘ Topaz | Al2(SiO4)(F,OH)2 |
| Si | ⓘ Tridymite | SiO2 |
| Si | ⓘ Garnet Group | X3Z2(SiO4)3 |
| K | Potassium | |
| K | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| K | ⓘ Osumilite | K◻2Fe22+Al3[Al2Si10O30] |
| K | ⓘ Sanidine | K(AlSi3O8) |
| Ti | Titanium | |
| Ti | ⓘ Pseudobrookite | Fe2TiO5 |
| Fe | Iron | |
| Fe | ⓘ Almandine | Fe32+Al2(SiO4)3 |
| Fe | ⓘ Hematite | Fe2O3 |
| Fe | ⓘ Osumilite | K◻2Fe22+Al3[Al2Si10O30] |
| Fe | ⓘ Pseudobrookite | Fe2TiO5 |
Other Regions, Features and Areas containing this locality
Eurasian PlateTectonic Plate
- Sardinia-Corsica BlockOrogenic Belt
EuropeContinent
Italy
- Sardinia
- Oristano Province
- Monte ArciMassif
- Oristano Province
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References
Olsen, Edward, Bunch, T. E. (1970) Compositions of natural osumilites. American Mineralogist, 55 (5-6) 875-879
Cioni, Roberto; Clocchiatti, Robert; Di Paola, Giovanni M.; Santacroce, Roberto; Tonarini, Sonia (1982) Miocene calc-alkaline heritage in the Pliocene postcollisional volcanism of Monte Arci (Sardinia, Italy). Journal of Volcanology and Geothermal Research, 14 (1-2). 133-167 doi:10.1016/0377-0273(82)90046-4
Funtanafigu quarry, Marrubiu, Oristano Province, Sardinia, Italy