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Colletto Fiorenza, Pian del Re, Crissolo, Cuneo Province, Piedmont, Italyi
Regional Level Types
Colletto FiorenzaPass
Pian del Re- not defined -
CrissoloCommune
Cuneo ProvinceProvince
PiedmontRegion
ItalyCountry

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Latitude & Longitude (WGS84):
44° 41' 21'' North , 7° 5' 53'' East
Latitude & Longitude (decimal):
44.68937,7.09818
GeoHash:
G#: spvn1x2wr
GRN:
N30E04
Type:
Pass
Köppen climate type:
Cfb : Temperate oceanic climate
Mindat Locality ID:
422177
Long-form identifier:
mindat:1:2:422177:0
GUID (UUID V4):
0


Outcrop of chrome-omphacite and eclogitic metagabbro at Colletto Fiorenza, between Fiorenza and Chiaretto lakes.

In the Cr-omphacite metagabbro a well developed foliation can be observed: in whitish matrix, bright-green phenoclasts of chrome-omphacite occur. They consist of Cr-omphacite phenoclasts (locally known as "smaragdite"), which are embedded in a fine matrix of zoisite, jadeite, garnet, clinochlore, talc, rutile or retrograde products such as albite, tremolite-actinolite, Fe-bearing chlorite, clinozoisite-epidote, quartz and titanite. The magmatic clinopyroxene (diopside) is replaced by single crystals of Cr-omphacite and/or tremolite and/or talc or by aggregates of fine-grained omphacite. Tremolite and plagioclase (totally transformed to jadeite, albite, Mg-Fe chlorite and zoisite) are usually enclosed in the matrix. The olivine is also completely altered to talc and/or tremolite.

Eclogitic metagabbros from the same locality originally make up of porphyroclastic omphacite (pseudomorphs after clinopyroxene) enclosed in a matrix of tremolite, zoisite, fine-grained omphacite, garnet, rutile and accessory apatite, quartz and titanite. Phenoblasts of blue amphibole and phengite locally were also found. The rock is strongly retrogressed and mostly consists of greenschist facies mineral assemblages. During retrograde processes omphacite was usually replaced by tremolite and Mg-Fe chlorite along their margins and cleavages. The plagioclase is completely altered to albite and/or epidote-clinozoisite and/or chlorite. Porphyroblasts of glaucophane-crossite (up to 11 mm long) and sometimes phengite (0.5 mm long) are embedded in the matrix. Fine grains of garnet (up to 0.3 mm across) are partly resorbed and altered to chlorite. Very fine grains of fresh quartz are usually enclosed in the matrix.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


12 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 Diagram

Detailed Mineral List:

ⓘ Actinolite
Formula: ◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
ⓘ Albite
Formula: Na(AlSi3O8)
ⓘ 'Apatite'
Formula: Ca5(PO4)3(Cl/F/OH)
ⓘ 'Chlorite Group'
ⓘ Clinochlore
Formula: Mg5Al(AlSi3O10)(OH)8
ⓘ 'Clinozoisite-Epidote Series'
ⓘ 'Crossite'
ⓘ 'Garnet Group'
Formula: X3Z2(SiO4)3
ⓘ Glaucophane
Formula: ◻[Na2][Mg3Al2]Si8O22(OH)2
ⓘ Jadeite
Formula: Na(Al,Fe3+)Si2O6
ⓘ Muscovite
Formula: KAl2(AlSi3O10)(OH)2
ⓘ Muscovite var. Phengite
Formula: KAl1.5(Mg,Fe)0.5(Al0.5Si3.5O10)(OH)2
ⓘ Omphacite
Formula: (NaaCabFe2+cMgd)(AleFe3+fFe2+gMgh)Si2O6
ⓘ Omphacite var. Chrome-Omphacite
Formula: (Ca,Na)(Mg,Cr3+,Al)Si2O6
ⓘ Quartz
Formula: SiO2
ⓘ Talc
Formula: Mg3Si4O10(OH)2
ⓘ Titanite
Formula: CaTi(SiO4)O
ⓘ Tremolite
Formula: ◻Ca2Mg5(Si8O22)(OH)2
ⓘ Zoisite
Formula: (CaCa)(AlAlAl)O[Si2O7][SiO4](OH)

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
ⓘQuartz4.DA.05SiO2
Group 9 - Silicates
ⓘTitanite9.AG.15CaTi(SiO4)O
ⓘZoisite9.BG.10(CaCa)(AlAlAl)O[Si2O7][SiO4](OH)
ⓘOmphacite9.DA.20(NaaCabFe2+cMgd)(AleFe3+fFe2+gMgh)Si2O6
ⓘvar. Chrome-Omphacite9.DA.20(Ca,Na)(Mg,Cr3+,Al)Si2O6
ⓘJadeite9.DA.25Na(Al,Fe3+)Si2O6
ⓘActinolite9.DE.10◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
ⓘTremolite9.DE.10◻Ca2Mg5(Si8O22)(OH)2
ⓘGlaucophane9.DE.25◻[Na2][Mg3Al2]Si8O22(OH)2
ⓘTalc9.EC.05Mg3Si4O10(OH)2
ⓘMuscovite9.EC.15KAl2(AlSi3O10)(OH)2
ⓘvar. Phengite9.EC.15KAl1.5(Mg,Fe)0.5(Al0.5Si3.5O10)(OH)2
ⓘClinochlore9.EC.55Mg5Al(AlSi3O10)(OH)8
ⓘAlbite9.FA.35Na(AlSi3O8)
Unclassified
ⓘ'Chlorite Group'-
ⓘ'Crossite'-
ⓘ'Clinozoisite-Epidote Series'-
ⓘ'Garnet Group'-X3Z2(SiO4)3
ⓘ'Apatite'-Ca5(PO4)3(Cl/F/OH)

List of minerals for each chemical element

HHydrogen
Hⓘ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Hⓘ ClinochloreMg5Al(AlSi3O10)(OH)8
Hⓘ Glaucophane◻[Na2][Mg3Al2]Si8O22(OH)2
Hⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Hⓘ Muscovite var. PhengiteKAl1.5(Mg,Fe)0.5(Al0.5Si3.5O10)(OH)2
Hⓘ TalcMg3Si4O10(OH)2
Hⓘ Tremolite◻Ca2Mg5(Si8O22)(OH)2
Hⓘ Zoisite(CaCa)(AlAlAl)O[Si2O7][SiO4](OH)
Hⓘ Clinozoisite-Epidote Series
Hⓘ ApatiteCa5(PO4)3(Cl/F/OH)
OOxygen
Oⓘ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Oⓘ AlbiteNa(AlSi3O8)
Oⓘ ClinochloreMg5Al(AlSi3O10)(OH)8
Oⓘ Glaucophane◻[Na2][Mg3Al2]Si8O22(OH)2
Oⓘ JadeiteNa(Al,Fe3+)Si2O6
Oⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Oⓘ Omphacite(NaaCabFec2+Mgd)(AleFef3+Feg2+Mgh)Si2O6
Oⓘ Muscovite var. PhengiteKAl1.5(Mg,Fe)0.5(Al0.5Si3.5O10)(OH)2
Oⓘ QuartzSiO2
Oⓘ TalcMg3Si4O10(OH)2
Oⓘ TitaniteCaTi(SiO4)O
Oⓘ Tremolite◻Ca2Mg5(Si8O22)(OH)2
Oⓘ Zoisite(CaCa)(AlAlAl)O[Si2O7][SiO4](OH)
Oⓘ Clinozoisite-Epidote Series
Oⓘ Garnet GroupX3Z2(SiO4)3
Oⓘ Omphacite var. Chrome-Omphacite(Ca,Na)(Mg,Cr3+,Al)Si2O6
Oⓘ ApatiteCa5(PO4)3(Cl/F/OH)
FFluorine
Fⓘ ApatiteCa5(PO4)3(Cl/F/OH)
NaSodium
Naⓘ AlbiteNa(AlSi3O8)
Naⓘ Glaucophane◻[Na2][Mg3Al2]Si8O22(OH)2
Naⓘ JadeiteNa(Al,Fe3+)Si2O6
Naⓘ Omphacite(NaaCabFec2+Mgd)(AleFef3+Feg2+Mgh)Si2O6
Naⓘ Omphacite var. Chrome-Omphacite(Ca,Na)(Mg,Cr3+,Al)Si2O6
MgMagnesium
Mgⓘ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Mgⓘ ClinochloreMg5Al(AlSi3O10)(OH)8
Mgⓘ Glaucophane◻[Na2][Mg3Al2]Si8O22(OH)2
Mgⓘ Omphacite(NaaCabFec2+Mgd)(AleFef3+Feg2+Mgh)Si2O6
Mgⓘ Muscovite var. PhengiteKAl1.5(Mg,Fe)0.5(Al0.5Si3.5O10)(OH)2
Mgⓘ TalcMg3Si4O10(OH)2
Mgⓘ Tremolite◻Ca2Mg5(Si8O22)(OH)2
Mgⓘ Omphacite var. Chrome-Omphacite(Ca,Na)(Mg,Cr3+,Al)Si2O6
AlAluminium
Alⓘ AlbiteNa(AlSi3O8)
Alⓘ ClinochloreMg5Al(AlSi3O10)(OH)8
Alⓘ Glaucophane◻[Na2][Mg3Al2]Si8O22(OH)2
Alⓘ JadeiteNa(Al,Fe3+)Si2O6
Alⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Alⓘ Omphacite(NaaCabFec2+Mgd)(AleFef3+Feg2+Mgh)Si2O6
Alⓘ Muscovite var. PhengiteKAl1.5(Mg,Fe)0.5(Al0.5Si3.5O10)(OH)2
Alⓘ Zoisite(CaCa)(AlAlAl)O[Si2O7][SiO4](OH)
Alⓘ Clinozoisite-Epidote Series
Alⓘ Omphacite var. Chrome-Omphacite(Ca,Na)(Mg,Cr3+,Al)Si2O6
SiSilicon
Siⓘ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Siⓘ AlbiteNa(AlSi3O8)
Siⓘ ClinochloreMg5Al(AlSi3O10)(OH)8
Siⓘ Glaucophane◻[Na2][Mg3Al2]Si8O22(OH)2
Siⓘ JadeiteNa(Al,Fe3+)Si2O6
Siⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Siⓘ Omphacite(NaaCabFec2+Mgd)(AleFef3+Feg2+Mgh)Si2O6
Siⓘ Muscovite var. PhengiteKAl1.5(Mg,Fe)0.5(Al0.5Si3.5O10)(OH)2
Siⓘ QuartzSiO2
Siⓘ TalcMg3Si4O10(OH)2
Siⓘ TitaniteCaTi(SiO4)O
Siⓘ Tremolite◻Ca2Mg5(Si8O22)(OH)2
Siⓘ Zoisite(CaCa)(AlAlAl)O[Si2O7][SiO4](OH)
Siⓘ Clinozoisite-Epidote Series
Siⓘ Garnet GroupX3Z2(SiO4)3
Siⓘ Omphacite var. Chrome-Omphacite(Ca,Na)(Mg,Cr3+,Al)Si2O6
PPhosphorus
Pⓘ ApatiteCa5(PO4)3(Cl/F/OH)
ClChlorine
Clⓘ ApatiteCa5(PO4)3(Cl/F/OH)
KPotassium
Kⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Kⓘ Muscovite var. PhengiteKAl1.5(Mg,Fe)0.5(Al0.5Si3.5O10)(OH)2
CaCalcium
Caⓘ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Caⓘ Omphacite(NaaCabFec2+Mgd)(AleFef3+Feg2+Mgh)Si2O6
Caⓘ TitaniteCaTi(SiO4)O
Caⓘ Tremolite◻Ca2Mg5(Si8O22)(OH)2
Caⓘ Zoisite(CaCa)(AlAlAl)O[Si2O7][SiO4](OH)
Caⓘ Clinozoisite-Epidote Series
Caⓘ Omphacite var. Chrome-Omphacite(Ca,Na)(Mg,Cr3+,Al)Si2O6
Caⓘ ApatiteCa5(PO4)3(Cl/F/OH)
TiTitanium
Tiⓘ TitaniteCaTi(SiO4)O
CrChromium
Crⓘ Omphacite var. Chrome-Omphacite(Ca,Na)(Mg,Cr3+,Al)Si2O6
FeIron
Feⓘ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Feⓘ JadeiteNa(Al,Fe3+)Si2O6
Feⓘ Omphacite(NaaCabFec2+Mgd)(AleFef3+Feg2+Mgh)Si2O6
Feⓘ Muscovite var. PhengiteKAl1.5(Mg,Fe)0.5(Al0.5Si3.5O10)(OH)2
Feⓘ Clinozoisite-Epidote Series

Other Regions, Features and Areas containing this locality

Eurasian PlateTectonic Plate
  • AlpsAccretionary Complex
EuropeContinent
Italy

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

Abdel-Karim, A.-A. M., and Puskás, Z. (1989) Comparative petrological investigations of metagabbro from Western Alps ophiolites. Acta Mineralogica-Petrographica, 30, 19-34.
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