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L'Eguisse Mine, Duranus, Nice, Alpes-Maritimes, Provence-Alpes-Côte d'Azur, Francei
Regional Level Types
L'Eguisse MineMine
Duranus- not defined -
NiceArrondissement
Alpes-MaritimesDepartment
Provence-Alpes-Côte d'AzurRegion
FranceCountry

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Latitude & Longitude (WGS84):
43° North , 7° East (est.)
Estimate based on other nearby localities or region boundaries.
Margin of Error:
~4km
GRN:
N30E04
Type:
Mine
Köppen climate type:
Csb : Warm-summer Mediterranean climate
Mindat Locality ID:
1672
Long-form identifier:
mindat:1:2:1672:1
GUID (UUID V4):
f22e8079-e369-4074-86bc-ad31b21bc15e


Stockwork of calcite veins, mainly millimetric to centimetric (and up to 30~50 cm in the now collapsed galleries). The veins are hosted in lower Cenomanian marl and contain arsenic sulphides. Arsenic sulphides can also be found as marl impregnations, apart of the calcite veins.

Calcian and magnesian secondary arsenates can be found, especially beside the ancient processing installation in a place where was implanted the ore storage. Some samples can be found on "anthropogenic substratum" (broken roof tiles).

Worked from 1901 to 1931.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


17 valid minerals. 1 (TL) - type locality of valid minerals.

Detailed Mineral List:

ⓘ Arsenic
Formula: As
ⓘ Arsenolite
Formula: As2O3
ⓘ Baryte
Formula: BaSO4
ⓘ Calcite
Formula: CaCO3
ⓘ Duranusite (TL)
Formula: As4S
Type Locality:
ⓘ Ferrarisite
Formula: Ca5(AsO4)2(HAsO4)2 · 9H2O
ⓘ 'Glauconite'
Formula: K0.60-0.85(Fe3+,Mg,Al)2(Si,Al)4O10](OH)2
ⓘ Guérinite
Formula: Ca6(HAsO4)3(AsO4)2 · 10.5H2O
ⓘ Gypsum
Formula: CaSO4 · 2H2O
ⓘ 'Limonite'
ⓘ Marcasite
Formula: FeS2
ⓘ Orpiment
Formula: As2S3
ⓘ Pararealgar
Formula: As4S4
ⓘ Picropharmacolite
Formula: Ca4Mg(AsO4)2(HAsO4)2 · 11H2O
ⓘ Pyrite
Formula: FeS2
ⓘ Quartz
Formula: SiO2
ⓘ Realgar
Formula: As4S4
ⓘ Sainfeldite
Formula: Ca5(AsO4)2(AsO3OH)2 · 4H2O
ⓘ Stibnite
Formula: Sb2S3

Gallery:

As4Sⓘ Duranusite (TL)
FeS2ⓘ Marcasite
As2S3ⓘ Orpiment
Ca4Mg(AsO4)2(HAsO4)2 · 11H2Oⓘ Picropharmacolite
As4S4ⓘ Realgar

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
ⓘArsenic1.CA.05As
Group 2 - Sulphides and Sulfosalts
ⓘStibnite2.DB.05Sb2S3
ⓘPyrite2.EB.05aFeS2
ⓘMarcasite2.EB.10aFeS2
ⓘDuranusite (TL)2.FA.05As4S
ⓘRealgar2.FA.15aAs4S4
ⓘPararealgar2.FA.15bAs4S4
ⓘOrpiment2.FA.30As2S3
Group 4 - Oxides and Hydroxides
ⓘArsenolite4.CB.50As2O3
ⓘQuartz4.DA.05SiO2
Group 5 - Nitrates and Carbonates
ⓘCalcite5.AB.05CaCO3
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
ⓘBaryte7.AD.35BaSO4
ⓘGypsum7.CD.40CaSO4 · 2H2O
Group 8 - Phosphates, Arsenates and Vanadates
ⓘPicropharmacolite8.CH.15Ca4Mg(AsO4)2(HAsO4)2 · 11H2O
ⓘSainfeldite8.CJ.Ca5(AsO4)2(AsO3OH)2 · 4H2O
ⓘFerrarisite8.CJ.30Ca5(AsO4)2(HAsO4)2 · 9H2O
ⓘGuérinite8.CJ.75Ca6(HAsO4)3(AsO4)2 · 10.5H2O
Unclassified
ⓘ'Glauconite'-K0.60-0.85(Fe3+,Mg,Al)2(Si,Al)4O10](OH)2
ⓘ'Limonite'-

List of minerals for each chemical element

HHydrogen
Hⓘ FerrarisiteCa5(AsO4)2(HAsO4)2 · 9H2O
Hⓘ GlauconiteK0.60-0.85(Fe3+,Mg,Al)2(Si,Al)4O10](OH)2
Hⓘ GuériniteCa6(HAsO4)3(AsO4)2 · 10.5H2O
Hⓘ GypsumCaSO4 · 2H2O
Hⓘ PicropharmacoliteCa4Mg(AsO4)2(HAsO4)2 · 11H2O
Hⓘ SainfelditeCa5(AsO4)2(AsO3OH)2 · 4H2O
CCarbon
Cⓘ CalciteCaCO3
OOxygen
Oⓘ ArsenoliteAs2O3
Oⓘ BaryteBaSO4
Oⓘ CalciteCaCO3
Oⓘ FerrarisiteCa5(AsO4)2(HAsO4)2 · 9H2O
Oⓘ GlauconiteK0.60-0.85(Fe3+,Mg,Al)2(Si,Al)4O10](OH)2
Oⓘ GuériniteCa6(HAsO4)3(AsO4)2 · 10.5H2O
Oⓘ GypsumCaSO4 · 2H2O
Oⓘ PicropharmacoliteCa4Mg(AsO4)2(HAsO4)2 · 11H2O
Oⓘ QuartzSiO2
Oⓘ SainfelditeCa5(AsO4)2(AsO3OH)2 · 4H2O
MgMagnesium
Mgⓘ GlauconiteK0.60-0.85(Fe3+,Mg,Al)2(Si,Al)4O10](OH)2
Mgⓘ PicropharmacoliteCa4Mg(AsO4)2(HAsO4)2 · 11H2O
AlAluminium
Alⓘ GlauconiteK0.60-0.85(Fe3+,Mg,Al)2(Si,Al)4O10](OH)2
SiSilicon
Siⓘ GlauconiteK0.60-0.85(Fe3+,Mg,Al)2(Si,Al)4O10](OH)2
Siⓘ QuartzSiO2
SSulfur
Sⓘ BaryteBaSO4
Sⓘ DuranusiteAs4S
Sⓘ GypsumCaSO4 · 2H2O
Sⓘ MarcasiteFeS2
Sⓘ OrpimentAs2S3
Sⓘ PararealgarAs4S4
Sⓘ PyriteFeS2
Sⓘ RealgarAs4S4
Sⓘ StibniteSb2S3
KPotassium
Kⓘ GlauconiteK0.60-0.85(Fe3+,Mg,Al)2(Si,Al)4O10](OH)2
CaCalcium
Caⓘ CalciteCaCO3
Caⓘ FerrarisiteCa5(AsO4)2(HAsO4)2 · 9H2O
Caⓘ GuériniteCa6(HAsO4)3(AsO4)2 · 10.5H2O
Caⓘ GypsumCaSO4 · 2H2O
Caⓘ PicropharmacoliteCa4Mg(AsO4)2(HAsO4)2 · 11H2O
Caⓘ SainfelditeCa5(AsO4)2(AsO3OH)2 · 4H2O
FeIron
Feⓘ GlauconiteK0.60-0.85(Fe3+,Mg,Al)2(Si,Al)4O10](OH)2
Feⓘ MarcasiteFeS2
Feⓘ PyriteFeS2
AsArsenic
Asⓘ ArsenoliteAs2O3
Asⓘ ArsenicAs
Asⓘ DuranusiteAs4S
Asⓘ FerrarisiteCa5(AsO4)2(HAsO4)2 · 9H2O
Asⓘ GuériniteCa6(HAsO4)3(AsO4)2 · 10.5H2O
Asⓘ OrpimentAs2S3
Asⓘ PararealgarAs4S4
Asⓘ PicropharmacoliteCa4Mg(AsO4)2(HAsO4)2 · 11H2O
Asⓘ RealgarAs4S4
Asⓘ SainfelditeCa5(AsO4)2(AsO3OH)2 · 4H2O
SbAntimony
Sbⓘ StibniteSb2S3
BaBarium
Baⓘ BaryteBaSO4

Other Regions, Features and Areas containing this locality

Eurasian PlateTectonic Plate
EuropeContinent

This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.

References

www.mindat.org (n.d.) http://www.mindat.org/mesg-20-320790.html
www.geowiki.fr (n.d.) http://www.geowiki.fr/index.php?title=Duranus
Johan, Zdenek, Laforêt, Claude, Picot, Paul, Feraud, Jean (1973) La duranusite, As4S, un nouveau minéral. Bulletin de Minéralogie, 96 (2) 131-134 doi:10.3406/bulmi.1973.6794
Feraud, J. (1974): Les gisements de sulfures d'arsenic du sud-est de la France. Minéralisations liées aux strates et gîtes filoniens. Thèse doctorat spec. géologie appliquée, option gisements minéraux. Université de Paris IV.
Pierrot, R., Picot, P., Féraud, J., Vernet, J. (1974) Inventaire Minéralogique de la France N° 4 : Alpes-Maritimes. Bureau de Recherches Géologiques et Minières.
Mari, G. & Mari, D. (1982): "Mines et minéraux des Alpes Maritimes" Ed. SERRES.
Perroud, P. (1989): "Les minéraux de Duranus." Le Cristallier Suisse, 8(5), 216-230.
Perroud, P. (1990): "Les minéraux de Duranus." Minéraux et Fossiles, (175), 7-12.
Meisser, N., Ansermet, S. (1990): Elementares Arsen von Duranus, Alpes-Maritimes (F). Schweizer Strahler 8(10), 330-341. (in German and French)
Mari, G. & D. (2012): "La mine d'arsenic de Duranus". Riviera Scientifique, 96, 39-70.
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