Asturreta Quarry (Militares Quarry), Eugui, Esteríbar, Navarre, Spaini
| Regional Level Types | |
|---|---|
| Asturreta Quarry (Militares Quarry) | Quarry |
| Eugui | Village |
| Esteríbar | Municipality |
| Navarre | Autonomous Community |
| Spain | Group of Countries |
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Latitude & Longitude (WGS84):
43° 0' 46'' North , 1° 30' 41'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Mindat Locality ID:
235467
Long-form identifier:
mindat:1:2:235467:8
GUID (UUID V4):
cf82cec4-9602-4c33-9b57-9c1eb239771a
Name(s) in local language(s):
Cantera Asturreta (Cantera de los Militares), Eugui (Eugi), Esteríbar (Esteribar), Navarra (Nafarroa), España
Old and revegetated magnesite quarry located near the Spain - France border. The dolomite specimens found (up to 10 cm) are among the best in the world.
Asturreta quarry is the first quarry worked in Eugui. Most of the finest dolomite specimens and all the older specimens are actually from Asturreta. It is located just north of Azcárate quarry.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsDetailed Mineral List:
| ⓘ Aragonite Formula: CaCO3 Habit: fan-shaped aggregates up to 10 cm, with individual crystals reaching up to 4 cm. In some cases, the aragonite crystals show sharp terminal faces, but acicular crystals with cloudy terminations are most common. Colour: colourless; white to brown |
| ⓘ Calcite Formula: CaCO3 Description: Calcite is very rare, occurring in small quantities with dolomite and as small crystals in geodes. The material named "calcita" by miners is actually dolomite. |
| ⓘ Chalcocite Formula: Cu2S |
| ⓘ Chalcopyrite Formula: CuFeS2 Description: Small crystals of chalcopyrite up to 5 mm in size have been found, associated with dolomite crystals. Some crystals have a superficial coating of chalcocite. Small masses up to 2 cm across are sometimes found scattered through massive dolomite. |
| ⓘ Dolomite Formula: CaMg(CO3)2 |
| ⓘ Goethite Formula: α-Fe3+O(OH) Habit: botryoidal crusts and masses in fissures in dolomite |
| ⓘ Graphite Formula: C Description: Graphite occurs as a component of carbonaceous matter which forms thin seams separating magnesite strata. In some areas, it forms lustrous layers of pure graphite. |
| ⓘ 'Limonite' |
| ⓘ Magnesite Formula: MgCO3 |
| ⓘ Malachite Formula: Cu2(CO3)(OH)2 Description: At least two habits of malachite have been found at the Eugui quarries. Pseudomorphs after chalcopyrite crystals to 3mm have been found, some of them hollow and filled with limonite. Well-formed malachite crystals to 4mm have also been found, in parallel growth. |
| ⓘ 'Pinolite' |
| ⓘ Pyrite Formula: FeS2 Description: Pyrite microcrystals occur in the carbonaceous seams between magnesite strata. Rare dolomite crystals can be seen to contain a myriad of minute pyrite pyritohedrons as inclusions. Pyrite crystals up to about 5mm are known. |
| ⓘ Quartz Formula: SiO2 |
| ⓘ 'Tetrahedrite Subgroup' Formula: Cu6(Cu4C2+2)Sb4S12S Description: Rare crystals up to 5 mm have been found on dolomite crystals |
| ⓘ 'Wad' Description: Unidentified manganese oxides occur as thin films on dolomite crystals |
List of minerals arranged by Strunz 10th Edition classification
| Group 1 - Elements | |||
|---|---|---|---|
| ⓘ | Graphite | 1.CB.05a | C |
| Group 2 - Sulphides and Sulfosalts | |||
| ⓘ | Chalcocite | 2.BA.05 | Cu2S |
| ⓘ | Chalcopyrite | 2.CB.10a | CuFeS2 |
| ⓘ | Pyrite | 2.EB.05a | FeS2 |
| ⓘ | 'Tetrahedrite Subgroup' | 2.GB.05 | Cu6(Cu4C2+2)Sb4S12S |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | Goethite | 4.00. | α-Fe3+O(OH) |
| ⓘ | Quartz | 4.DA.05 | SiO2 |
| Group 5 - Nitrates and Carbonates | |||
| ⓘ | Calcite | 5.AB.05 | CaCO3 |
| ⓘ | Magnesite | 5.AB.05 | MgCO3 |
| ⓘ | Dolomite | 5.AB.10 | CaMg(CO3)2 |
| ⓘ | Aragonite | 5.AB.15 | CaCO3 |
| ⓘ | Malachite | 5.BA.10 | Cu2(CO3)(OH)2 |
| Unclassified | |||
| ⓘ | 'Limonite' | - | |
| ⓘ | 'Wad' | - | |
| ⓘ | 'Pinolite' | - | |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Goethite | α-Fe3+O(OH) |
| H | ⓘ Malachite | Cu2(CO3)(OH)2 |
| C | Carbon | |
| C | ⓘ Aragonite | CaCO3 |
| C | ⓘ Calcite | CaCO3 |
| C | ⓘ Dolomite | CaMg(CO3)2 |
| C | ⓘ Graphite | C |
| C | ⓘ Magnesite | MgCO3 |
| C | ⓘ Malachite | Cu2(CO3)(OH)2 |
| O | Oxygen | |
| O | ⓘ Aragonite | CaCO3 |
| O | ⓘ Calcite | CaCO3 |
| O | ⓘ Dolomite | CaMg(CO3)2 |
| O | ⓘ Goethite | α-Fe3+O(OH) |
| O | ⓘ Magnesite | MgCO3 |
| O | ⓘ Malachite | Cu2(CO3)(OH)2 |
| O | ⓘ Quartz | SiO2 |
| Mg | Magnesium | |
| Mg | ⓘ Dolomite | CaMg(CO3)2 |
| Mg | ⓘ Magnesite | MgCO3 |
| Si | Silicon | |
| Si | ⓘ Quartz | SiO2 |
| S | Sulfur | |
| S | ⓘ Chalcopyrite | CuFeS2 |
| S | ⓘ Chalcocite | Cu2S |
| S | ⓘ Pyrite | FeS2 |
| S | ⓘ Tetrahedrite Subgroup | Cu6(Cu4C22+)Sb4S12S |
| Ca | Calcium | |
| Ca | ⓘ Aragonite | CaCO3 |
| Ca | ⓘ Calcite | CaCO3 |
| Ca | ⓘ Dolomite | CaMg(CO3)2 |
| Fe | Iron | |
| Fe | ⓘ Chalcopyrite | CuFeS2 |
| Fe | ⓘ Goethite | α-Fe3+O(OH) |
| Fe | ⓘ Pyrite | FeS2 |
| Cu | Copper | |
| Cu | ⓘ Chalcopyrite | CuFeS2 |
| Cu | ⓘ Chalcocite | Cu2S |
| Cu | ⓘ Malachite | Cu2(CO3)(OH)2 |
| Cu | ⓘ Tetrahedrite Subgroup | Cu6(Cu4C22+)Sb4S12S |
| Sb | Antimony | |
| Sb | ⓘ Tetrahedrite Subgroup | Cu6(Cu4C22+)Sb4S12S |
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References
