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Mont Semiol (Mont Semiouse; Mont Simiouse), Châtelneuf, Loire, Auvergne-Rhône-Alpes, Francei
Regional Level Types
Mont Semiol (Mont Semiouse; Mont Simiouse)Mountain
Châtelneuf- not defined -
LoireDepartment
Auvergne-Rhône-AlpesRegion
FranceCountry

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Key
Latitude & Longitude (WGS84):
45° 37' 48'' North , 3° 58' 58'' East
Latitude & Longitude (decimal):
Locality type:
Köppen climate type:
Nearest Settlements:
PlacePopulationDistance
Châtelneuf270 (2016)0.6km
Essertines-en-Châtelneuf608 (2016)1.6km
Roche258 (2016)3.2km
Lérigneux131 (2016)3.5km
Saint-Bonnet-le-Courreau764 (2016)4.5km
Other/historical names associated with this locality:
Auvergne-Rhône-Alpes


Porphyritic olivine basalt on the south slope of Mont Semiol, near the top.
Located 8 km WNW of Montbrison, in the municipality of Châtelneuf.

Regions containing this locality

Eurasian PlateTectonic Plate
EuropeContinent

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


11 valid minerals. 2 (TL) - type locality of valid minerals. 1 erroneous literature entry.

Detailed Mineral List:

Augite
Formula: (CaxMgyFez)(Mgy1Fez1)Si2O6
Calcite
Formula: CaCO3
'Chabazite'
Chabazite-Na
Formula: (Na2,K2,Ca,Sr,Mg)2[Al2Si4O12]2 · 12H2O
'Erionite'
'Fayalite-Forsterite Series'
Galena
Formula: PbS
Mazzite-Mg (TL)
Formula: (Mg,K,Ca)5(Si26Al10)O72 · 28H2O
Type Locality:
Reference: Contr.Mineral.Petr.(1974) 45, 99-105 (as Mazzite)
Mesolite
Formula: Na2Ca2Si9Al6O30 · 8H2O
Description: Very likely eroneously reported, and mistaken with phillipsite. See comment by Gonnard in "Mineralogie des Departements de la Loire et du Rhone.
Montmorillonite
Formula: (Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Offretite (TL)
Formula: KCaMg(Si13Al5)O36 · 15H2O
Type Locality:
Reference: C.R.Acad.Sci.Paris,(1890) 111, 1002-1003
Opal
Formula: SiO2 · nH2O
Opal var: Opal-AN
Formula: SiO2 · nH2O
Reference: Anthony Geneyton Collection
'Phillipsite'
Quartz
Formula: SiO2
Quartz var: Chalcedony
Formula: SiO2
Siderite
Formula: FeCO3
Spinel
Formula: MgAl2O4

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
Galena2.CD.10PbS
Group 4 - Oxides and Hydroxides
Opal4.DA.10SiO2 · nH2O
var: Opal-AN4.DA.10SiO2 · nH2O
Quartz4.DA.05SiO2
var: Chalcedony4.DA.05SiO2
Spinel4.BB.05MgAl2O4
Group 5 - Nitrates and Carbonates
Calcite5.AB.05CaCO3
Siderite5.AB.05FeCO3
Group 9 - Silicates
Augite9.DA.15(CaxMgyFez)(Mgy1Fez1)Si2O6
Chabazite-Na9.GD.10(Na2,K2,Ca,Sr,Mg)2[Al2Si4O12]2 · 12H2O
Mazzite-Mg (TL)9.GC.20(Mg,K,Ca)5(Si26Al10)O72 · 28H2O
Mesolite ?9.GA.05Na2Ca2Si9Al6O30 · 8H2O
Montmorillonite9.EC.40(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Offretite (TL)9.GD.25KCaMg(Si13Al5)O36 · 15H2O
Unclassified Minerals, Rocks, etc.
'Chabazite'-
'Erionite'-
'Fayalite-Forsterite Series'-
'Phillipsite'-

List of minerals arranged by Dana 8th Edition classification

Group 2 - SULFIDES
AmXp, with m:p = 1:1
Galena2.8.1.1PbS
Group 7 - MULTIPLE OXIDES
AB2X4
Spinel7.2.1.1MgAl2O4
Group 14 - ANHYDROUS NORMAL CARBONATES
A(XO3)
Calcite14.1.1.1CaCO3
Siderite14.1.1.3FeCO3
Group 65 - INOSILICATES Single-Width,Unbranched Chains,(W=1)
Single-Width Unbranched Chains, W=1 with chains P=2
Augite65.1.3a.3(CaxMgyFez)(Mgy1Fez1)Si2O6
Group 71 - PHYLLOSILICATES Sheets of Six-Membered Rings
Sheets of 6-membered rings with 2:1 clays
Montmorillonite71.3.1a.2(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz75.1.3.1SiO2
Si Tetrahedral Frameworks - SiO2 with H2O and organics
Opal75.2.1.1SiO2 · nH2O
Group 77 - TECTOSILICATES Zeolites
Zeolite group - True zeolites
Mesolite ?77.1.5.4Na2Ca2Si9Al6O30 · 8H2O
Offretite (TL)77.1.2.4KCaMg(Si13Al5)O36 · 15H2O
Unclassified Minerals, Mixtures, etc.
'Chabazite'-
Chabazite-Na-(Na2,K2,Ca,Sr,Mg)2[Al2Si4O12]2 · 12H2O
'Erionite'-
'Fayalite-Forsterite Series'-
Mazzite-Mg (TL)-(Mg,K,Ca)5(Si26Al10)O72 · 28H2O
Opal
var: Opal-AN
-SiO2 · nH2O
'Phillipsite'-
Quartz
var: Chalcedony
-SiO2

List of minerals for each chemical element

HHydrogen
H Mazzite-Mg(Mg,K,Ca)5(Si26Al10)O72 · 28H2O
H OffretiteKCaMg(Si13Al5)O36 · 15H2O
H Chabazite-Na(Na2,K2,Ca,Sr,Mg)2[Al2Si4O12]2 · 12H2O
H OpalSiO2 · nH2O
H Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
H Opal (var: Opal-AN)SiO2 · nH2O
H MesoliteNa2Ca2Si9Al6O30 · 8H2O
CCarbon
C CalciteCaCO3
C SideriteFeCO3
OOxygen
O Mazzite-Mg(Mg,K,Ca)5(Si26Al10)O72 · 28H2O
O OffretiteKCaMg(Si13Al5)O36 · 15H2O
O CalciteCaCO3
O SideriteFeCO3
O Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
O Chabazite-Na(Na2,K2,Ca,Sr,Mg)2[Al2Si4O12]2 · 12H2O
O OpalSiO2 · nH2O
O SpinelMgAl2O4
O Quartz (var: Chalcedony)SiO2
O Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
O Opal (var: Opal-AN)SiO2 · nH2O
O QuartzSiO2
O MesoliteNa2Ca2Si9Al6O30 · 8H2O
NaSodium
Na Chabazite-Na(Na2,K2,Ca,Sr,Mg)2[Al2Si4O12]2 · 12H2O
Na Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Na MesoliteNa2Ca2Si9Al6O30 · 8H2O
MgMagnesium
Mg Mazzite-Mg(Mg,K,Ca)5(Si26Al10)O72 · 28H2O
Mg OffretiteKCaMg(Si13Al5)O36 · 15H2O
Mg Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Mg Chabazite-Na(Na2,K2,Ca,Sr,Mg)2[Al2Si4O12]2 · 12H2O
Mg SpinelMgAl2O4
Mg Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
AlAluminium
Al Mazzite-Mg(Mg,K,Ca)5(Si26Al10)O72 · 28H2O
Al OffretiteKCaMg(Si13Al5)O36 · 15H2O
Al Chabazite-Na(Na2,K2,Ca,Sr,Mg)2[Al2Si4O12]2 · 12H2O
Al SpinelMgAl2O4
Al Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Al MesoliteNa2Ca2Si9Al6O30 · 8H2O
SiSilicon
Si Mazzite-Mg(Mg,K,Ca)5(Si26Al10)O72 · 28H2O
Si OffretiteKCaMg(Si13Al5)O36 · 15H2O
Si Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Si Chabazite-Na(Na2,K2,Ca,Sr,Mg)2[Al2Si4O12]2 · 12H2O
Si OpalSiO2 · nH2O
Si Quartz (var: Chalcedony)SiO2
Si Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Si Opal (var: Opal-AN)SiO2 · nH2O
Si QuartzSiO2
Si MesoliteNa2Ca2Si9Al6O30 · 8H2O
SSulfur
S GalenaPbS
KPotassium
K Mazzite-Mg(Mg,K,Ca)5(Si26Al10)O72 · 28H2O
K OffretiteKCaMg(Si13Al5)O36 · 15H2O
K Chabazite-Na(Na2,K2,Ca,Sr,Mg)2[Al2Si4O12]2 · 12H2O
CaCalcium
Ca Mazzite-Mg(Mg,K,Ca)5(Si26Al10)O72 · 28H2O
Ca OffretiteKCaMg(Si13Al5)O36 · 15H2O
Ca CalciteCaCO3
Ca Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Ca Chabazite-Na(Na2,K2,Ca,Sr,Mg)2[Al2Si4O12]2 · 12H2O
Ca Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Ca MesoliteNa2Ca2Si9Al6O30 · 8H2O
FeIron
Fe SideriteFeCO3
Fe Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
SrStrontium
Sr Chabazite-Na(Na2,K2,Ca,Sr,Mg)2[Al2Si4O12]2 · 12H2O
PbLead
Pb GalenaPbS

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
- Dardillac A., Dardillac M. (1997): Le Mont Semiol (42). Le Cahier des Micromonteurs, n°4, 5-9
- Betz, V. (2006): Mont Semiol bei Montbrison, Loire, Frankreich. Lapis 31 (11), 41-46.

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