Case Montanini quarry, Sant'Andrea Bagni, Medesano, Parma Province, Emilia-Romagna, Italyi
| Regional Level Types | |
|---|---|
| Case Montanini quarry | Quarry (Active) |
| Sant'Andrea Bagni | Village |
| Medesano | Commune |
| Parma Province | Province |
| Emilia-Romagna | Region |
| Italy | Country |
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Latitude & Longitude (WGS84):
44° 43' 51'' North , 10° 1' 59'' East
Latitude & Longitude (decimal):
Type:
Quarry (Active) - last checked 2026
Deposit first discovered:
1990
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Varano Marchesi | 289 (2014) | 2.3km |
| Sant'Andrea Bagni | 934 (2014) | 4.5km |
| Viazzano | 240 (2014) | 5.1km |
| Varano De' Melegari | 1,408 (2014) | 5.1km |
| Ramiola | 1,496 (2014) | 5.7km |
Other/historical names associated with this locality:
Castelletto quarry, Varano dei Marchesi, Medesano
Other Languages:
French:
Carrière de Case Montanini, Medesano, Parme, Émilie-Romagne, Italie
Italian:
Cava di Case Montanini, Sant'Andrea Bagni, Medesano, provincia di Parma, Emilia-Romagna, Italia
An active (personal visit: Mavris, 2008) quarry exploited by Industria Cementi Giovanni Rossi SpA for high siliceous cement ("pozzolana"). The quarry is set within the Contignaco Formation, which consists of the early Miocene hemipelagic siliceous marls and silty marls, with few tripoli (siliceous limestone) beds and volcaniclastic layers of rhyolitic composition.
The marls interacted with local intense gaseous activity (mostly methane). The precipitating amorphous silica, combined with methane, crystallized as melanophlogite. Melanophlogite is found in veins and pockets, only in the more siliceous and compact levels of the Contignaco Formation, i.e., those with apparently lower porosity. It is always found in association with opal.
Melanophlogite appears here mostly as cubes, from 0.1 to 1 mm in size, on thin opal CT layers and occurs in veins that are never completely filled; in filled veins, only opal is found. A thin crust of opal (<1 mm) is always found between melanophlogite and the host rock. Pure melanophlogite is quite rare: the geological settings in the place changed and so there are frequent finds of pseudomorphs of quartz or CT-opal after melanophlogite. Opal is also found at the core of some melanophlogite crystals.
Melanophlogite does not show birefringence even in thick sections; no evidence of twinning was found by optical observation.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsParagenesis
Detailed Mineral List:
| ⓘ Baryte Formula: BaSO4 Habit: tabular or prismatic xls Colour: colorless, white, yellow, honey-yellow, orange Fluorescence: yellow |
| ⓘ Calcite Formula: CaCO3 Habit: rhombohedric xls or acicular xls Colour: white, yellow, orange Fluorescence: orange |
| ⓘ Gypsum Formula: CaSO4 · 2H2O Colour: colorless, white |
| ✪ Melanophlogite Formula: 46SiO2 · 6(N2,CO2) · 2(CH4,N2) Habit: pseudocubic xls Colour: colorless, white References: |
| ✪ Opal Formula: SiO2 · nH2O Habit: spherules Colour: white, light blue |
| ⓘ Pyrite Formula: FeS2 Habit: octahedric, cube-octahedric xls |
| ⓘ Quartz Formula: SiO2 Colour: colorless |
List of minerals arranged by Strunz 10th Edition classification
| Group 2 - Sulphides and Sulfosalts | |||
|---|---|---|---|
| ⓘ | Pyrite | 2.EB.05a | FeS2 |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | Quartz | 4.DA.05 | SiO2 |
| ⓘ | Opal | 4.DA.10 | SiO2 · nH2O |
| ⓘ | Melanophlogite | 4.DA.25 | 46SiO2 · 6(N2,CO2) · 2(CH4,N2) |
| Group 5 - Nitrates and Carbonates | |||
| ⓘ | Calcite | 5.AB.05 | CaCO3 |
| Group 7 - Sulphates, Chromates, Molybdates and Tungstates | |||
| ⓘ | Baryte | 7.AD.35 | BaSO4 |
| ⓘ | Gypsum | 7.CD.40 | CaSO4 · 2H2O |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Gypsum | CaSO4 · 2H2O |
| H | ⓘ Melanophlogite | 46SiO2 · 6(N2,CO2) · 2(CH4,N2) |
| H | ⓘ Opal | SiO2 · nH2O |
| C | Carbon | |
| C | ⓘ Calcite | CaCO3 |
| C | ⓘ Melanophlogite | 46SiO2 · 6(N2,CO2) · 2(CH4,N2) |
| N | Nitrogen | |
| N | ⓘ Melanophlogite | 46SiO2 · 6(N2,CO2) · 2(CH4,N2) |
| O | Oxygen | |
| O | ⓘ Baryte | BaSO4 |
| O | ⓘ Calcite | CaCO3 |
| O | ⓘ Gypsum | CaSO4 · 2H2O |
| O | ⓘ Melanophlogite | 46SiO2 · 6(N2,CO2) · 2(CH4,N2) |
| O | ⓘ Opal | SiO2 · nH2O |
| O | ⓘ Quartz | SiO2 |
| Si | Silicon | |
| Si | ⓘ Melanophlogite | 46SiO2 · 6(N2,CO2) · 2(CH4,N2) |
| Si | ⓘ Opal | SiO2 · nH2O |
| Si | ⓘ Quartz | SiO2 |
| S | Sulfur | |
| S | ⓘ Baryte | BaSO4 |
| S | ⓘ Gypsum | CaSO4 · 2H2O |
| S | ⓘ Pyrite | FeS2 |
| Ca | Calcium | |
| Ca | ⓘ Calcite | CaCO3 |
| Ca | ⓘ Gypsum | CaSO4 · 2H2O |
| Fe | Iron | |
| Fe | ⓘ Pyrite | FeS2 |
| Ba | Barium | |
| Ba | ⓘ Baryte | BaSO4 |
Other Regions, Features and Areas containing this locality
Eurasian PlateTectonic Plate
- Apennine OrogenAccretionary Complex
EuropeContinent
Italy
- Emilia-Romagna
- Parma Province
- Taro ValleyValley
- Parma Province
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Case Montanini quarry, Sant'Andrea Bagni, Medesano, Parma Province, Emilia-Romagna, Italy