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Sa Corona 'e sa Craba, Barbusi, Carbonia, South Sardinia Province, Sardinia, Italyi
Regional Level Types
Sa Corona 'e sa CrabaCave
BarbusiVillage
CarboniaCommune
South Sardinia ProvinceProvince
SardiniaAutonomous Region
Italy- not defined -

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PhotosMapsSearch
Latitude & Longitude (WGS84):
39° 11' 34'' North , 8° 30' 41'' East
Latitude & Longitude (decimal):
Type:
Nearest Settlements:
PlacePopulationDistance
Barbusi546 (2018)1.1km
Sirai289 (2018)1.5km
Carbonia21,664 (2018)3.2km
Cortoghiana2,478 (2018)4.5km
Medadeddu394 (2018)5.1km
Mindat Locality ID:
185594
Long-form identifier:
mindat:1:2:185594:7
GUID (UUID V4):
2eed7ef6-1dbf-45a1-93fc-566d174b2335
Other Languages:
Italian:
Sa corona 'e sa craba, Barbusi, Carbonia, Provincia del Sud Sardegna, Sardegna, Italia
Sardinian:
Sa corona 'e sa craba, Brabusi, Carbònia (Crabònia), Provìntzia de su Sud Sardigna (Provincia de su Sud Sardigna), Sardigna (Sardìnnia), Itàlia


Sa Corona 'e sa Craba area, whose name in Sardinian means "The crown of the goat", was explored for Pb, Zn and Ba ores in the early 1930s, and economic exploitation went on for a little more than 30 years after 1950.

A natural cave, located to the SE of Barbusi village and named Sa Corona 'e sa Craba cave, is entirely developed within a quartzite vein at the contact with Cambrian dolostones. Its natural entrance, enlarged during mining operations, opens at 260 m a.s.l. It is composed of an over 200 m long and 20 m wide gallery developed in a NW-SE direction. The cave was discovered in 1971 by cavers of the Gruppo Ricerche Speleologiche E.A. Martel of Carbonia and, because of its mineralogical interest, became immediately the object of intense collection activities. The cave is composed of a series of rooms entirely developed inside the quartzite rocks. The host rock appears dark, greyish to brownish. Carbonate speleothems, typical of caves carved in limestones and dolostones, are missing. After the first room, the cave continues with a wide and high gallery that hosts a large guano deposit generated by an important bat colony inhabiting the cave during spring-early summer.

The cave is well-known among minerals collectors for baryte (in gorgeous crystals turning bluish when exposed to light), calcite, quartz, dolomite, and aragonite. The study of fluid inclusions found in baryte suggests their deposition at a temperature lower than 50°C, only when the rising reducing fluid became more oxidative (Sauro et al., 2014). Various secondary sulfates, phosphates, silicates, and oxihydroxides have been identified in recent times (Baldoni et al., 2013; Sauro et al., 2014; D'Angeli et al., 2018; Audra et al., 2019).

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


27 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:

Alunite
Formula: KAl3(SO4)2(OH)6
Aragonite
Formula: CaCO3
Baryte
Formula: BaSO4
Berlinite ?
Formula: AlPO4
Calcite
Formula: CaCO3
Cinnabar
Formula: HgS
Dolomite
Formula: CaMg(CO3)2
Felsőbányaite
Formula: Al4(SO4)(OH)10 · 4H2O
Goethite
Formula: α-Fe3+O(OH)
Gypsum
Formula: CaSO4 · 2H2O
Halloysite
Formula: Al2(Si2O5)(OH)4
Hematite
Formula: Fe2O3
Hydrohalloysite
Formula: Al2Si2O5(OH)4 · 2H2O
Hydroxylapatite
Formula: Ca5(PO4)3(OH)
References:
Leucophosphite ?
Formula: KFe3+2(PO4)2(OH) · 2H2O
Lizardite
Formula: Mg3(Si2O5)(OH)4
Muscovite
Formula: KAl2(AlSi3O10)(OH)2
Muscovite var. Illite
Formula: K0.65Al2.0[Al0.65Si3.35O10](OH)2
Natroalunite
Formula: NaAl3(SO4)2(OH)6
Pyrolusite
Formula: Mn4+O2
Quartz
Formula: SiO2
Robertsite
Formula: Ca2Mn3+3(PO4)3O2 · 3H2O
References:
'Smectite Group'
Formula: A0.3D2-3[T4O10]Z2 · nH2O
Spheniscidite
Formula: (NH4,K)(Fe3+,Al)2(PO4)2(OH) · 2H2O
References:
Strengite
Formula: FePO4 · 2H2O
References:
Taranakite
Formula: (K,NH4)Al3(PO4)3(OH) · 9H2O
References:
Todorokite
Formula: (Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O
Vashegyite
Formula: Al11(PO4)9(OH)6 · 38H2O
References:
Walthierite
Formula: Ba0.5Al3(SO4)2(OH)6

Gallery:

BaSO4 Baryte

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
Cinnabar2.CD.15aHgS
Group 4 - Oxides and Hydroxides
Goethite4.00.α-Fe3+O(OH)
Hematite4.CB.05Fe2O3
Quartz4.DA.05SiO2
Pyrolusite4.DB.05Mn4+O2
Todorokite4.DK.10(Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O
Group 5 - Nitrates and Carbonates
Calcite5.AB.05CaCO3
Dolomite5.AB.10CaMg(CO3)2
Aragonite5.AB.15CaCO3
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
Baryte7.AD.35BaSO4
Natroalunite7.BC.10NaAl3(SO4)2(OH)6
Alunite7.BC.10KAl3(SO4)2(OH)6
Walthierite7.BC.10Ba0.5Al3(SO4)2(OH)6
Gypsum7.CD.40CaSO4 · 2H2O
Felsőbányaite7.DD.05Al4(SO4)(OH)10 · 4H2O
Group 8 - Phosphates, Arsenates and Vanadates
Berlinite ?8.AA.05AlPO4
Hydroxylapatite8.BN.05Ca5(PO4)3(OH)
Strengite8.CD.10FePO4 · 2H2O
Taranakite8.CH.25(K,NH4)Al3(PO4)3(OH) · 9H2O
Vashegyite8.DB.10Al11(PO4)9(OH)6 · 38H2O
Leucophosphite ?8.DH.10KFe3+2(PO4)2(OH) · 2H2O
Spheniscidite8.DH.10(NH4,K)(Fe3+,Al)2(PO4)2(OH) · 2H2O
Robertsite8.DH.30Ca2Mn3+3(PO4)3O2 · 3H2O
Group 9 - Silicates
Muscovite9.EC.15KAl2(AlSi3O10)(OH)2
var. Illite9.EC.15K0.65Al2.0[Al0.65Si3.35O10](OH)2
Halloysite9.ED.10Al2(Si2O5)(OH)4
Hydrohalloysite9.ED.10Al2Si2O5(OH)4 · 2H2O
Lizardite9.ED.15Mg3(Si2O5)(OH)4
Unclassified
'Smectite Group'-A0.3D2-3[T4O10]Z2 · nH2O

List of minerals for each chemical element

HHydrogen
H AluniteKAl3(SO4)2(OH)6
H FelsőbányaiteAl4(SO4)(OH)10 · 4H2O
H Goethiteα-Fe3+O(OH)
H GypsumCaSO4 · 2H2O
H HalloysiteAl2(Si2O5)(OH)4
H HydroxylapatiteCa5(PO4)3(OH)
H Muscovite var. IlliteK0.65Al2.0[Al0.65Si3.35O10](OH)2
H LeucophosphiteKFe23+(PO4)2(OH) · 2H2O
H LizarditeMg3(Si2O5)(OH)4
H MuscoviteKAl2(AlSi3O10)(OH)2
H NatroaluniteNaAl3(SO4)2(OH)6
H RobertsiteCa2Mn33+(PO4)3O2 · 3H2O
H Spheniscidite(NH4,K)(Fe3+,Al)2(PO4)2(OH) · 2H2O
H StrengiteFePO4 · 2H2O
H Taranakite(K,NH4)Al3(PO4)3(OH) · 9H2O
H Todorokite(Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O
H VashegyiteAl11(PO4)9(OH)6 · 38H2O
H WalthieriteBa0.5Al3(SO4)2(OH)6
H HydrohalloysiteAl2Si2O5(OH)4 · 2H2O
H Smectite GroupA0.3D2-3[T4O10]Z2 · nH2O
CCarbon
C AragoniteCaCO3
C CalciteCaCO3
C DolomiteCaMg(CO3)2
NNitrogen
N Spheniscidite(NH4,K)(Fe3+,Al)2(PO4)2(OH) · 2H2O
N Taranakite(K,NH4)Al3(PO4)3(OH) · 9H2O
OOxygen
O AluniteKAl3(SO4)2(OH)6
O AragoniteCaCO3
O BaryteBaSO4
O BerliniteAlPO4
O CalciteCaCO3
O DolomiteCaMg(CO3)2
O FelsőbányaiteAl4(SO4)(OH)10 · 4H2O
O Goethiteα-Fe3+O(OH)
O GypsumCaSO4 · 2H2O
O HalloysiteAl2(Si2O5)(OH)4
O HematiteFe2O3
O HydroxylapatiteCa5(PO4)3(OH)
O Muscovite var. IlliteK0.65Al2.0[Al0.65Si3.35O10](OH)2
O LeucophosphiteKFe23+(PO4)2(OH) · 2H2O
O LizarditeMg3(Si2O5)(OH)4
O MuscoviteKAl2(AlSi3O10)(OH)2
O NatroaluniteNaAl3(SO4)2(OH)6
O PyrolusiteMn4+O2
O QuartzSiO2
O RobertsiteCa2Mn33+(PO4)3O2 · 3H2O
O Spheniscidite(NH4,K)(Fe3+,Al)2(PO4)2(OH) · 2H2O
O StrengiteFePO4 · 2H2O
O Taranakite(K,NH4)Al3(PO4)3(OH) · 9H2O
O Todorokite(Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O
O VashegyiteAl11(PO4)9(OH)6 · 38H2O
O WalthieriteBa0.5Al3(SO4)2(OH)6
O HydrohalloysiteAl2Si2O5(OH)4 · 2H2O
O Smectite GroupA0.3D2-3[T4O10]Z2 · nH2O
NaSodium
Na NatroaluniteNaAl3(SO4)2(OH)6
Na Todorokite(Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O
MgMagnesium
Mg DolomiteCaMg(CO3)2
Mg LizarditeMg3(Si2O5)(OH)4
Mg Todorokite(Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O
AlAluminium
Al AluniteKAl3(SO4)2(OH)6
Al BerliniteAlPO4
Al FelsőbányaiteAl4(SO4)(OH)10 · 4H2O
Al HalloysiteAl2(Si2O5)(OH)4
Al Muscovite var. IlliteK0.65Al2.0[Al0.65Si3.35O10](OH)2
Al MuscoviteKAl2(AlSi3O10)(OH)2
Al NatroaluniteNaAl3(SO4)2(OH)6
Al Spheniscidite(NH4,K)(Fe3+,Al)2(PO4)2(OH) · 2H2O
Al Taranakite(K,NH4)Al3(PO4)3(OH) · 9H2O
Al Todorokite(Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O
Al VashegyiteAl11(PO4)9(OH)6 · 38H2O
Al WalthieriteBa0.5Al3(SO4)2(OH)6
Al HydrohalloysiteAl2Si2O5(OH)4 · 2H2O
SiSilicon
Si HalloysiteAl2(Si2O5)(OH)4
Si Muscovite var. IlliteK0.65Al2.0[Al0.65Si3.35O10](OH)2
Si LizarditeMg3(Si2O5)(OH)4
Si MuscoviteKAl2(AlSi3O10)(OH)2
Si QuartzSiO2
Si HydrohalloysiteAl2Si2O5(OH)4 · 2H2O
PPhosphorus
P BerliniteAlPO4
P HydroxylapatiteCa5(PO4)3(OH)
P LeucophosphiteKFe23+(PO4)2(OH) · 2H2O
P RobertsiteCa2Mn33+(PO4)3O2 · 3H2O
P Spheniscidite(NH4,K)(Fe3+,Al)2(PO4)2(OH) · 2H2O
P StrengiteFePO4 · 2H2O
P Taranakite(K,NH4)Al3(PO4)3(OH) · 9H2O
P VashegyiteAl11(PO4)9(OH)6 · 38H2O
SSulfur
S AluniteKAl3(SO4)2(OH)6
S BaryteBaSO4
S CinnabarHgS
S FelsőbányaiteAl4(SO4)(OH)10 · 4H2O
S GypsumCaSO4 · 2H2O
S NatroaluniteNaAl3(SO4)2(OH)6
S WalthieriteBa0.5Al3(SO4)2(OH)6
KPotassium
K AluniteKAl3(SO4)2(OH)6
K Muscovite var. IlliteK0.65Al2.0[Al0.65Si3.35O10](OH)2
K LeucophosphiteKFe23+(PO4)2(OH) · 2H2O
K MuscoviteKAl2(AlSi3O10)(OH)2
K Spheniscidite(NH4,K)(Fe3+,Al)2(PO4)2(OH) · 2H2O
K Taranakite(K,NH4)Al3(PO4)3(OH) · 9H2O
K Todorokite(Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O
CaCalcium
Ca AragoniteCaCO3
Ca CalciteCaCO3
Ca DolomiteCaMg(CO3)2
Ca GypsumCaSO4 · 2H2O
Ca HydroxylapatiteCa5(PO4)3(OH)
Ca RobertsiteCa2Mn33+(PO4)3O2 · 3H2O
Ca Todorokite(Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O
MnManganese
Mn PyrolusiteMn4+O2
Mn RobertsiteCa2Mn33+(PO4)3O2 · 3H2O
Mn Todorokite(Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O
FeIron
Fe Goethiteα-Fe3+O(OH)
Fe HematiteFe2O3
Fe LeucophosphiteKFe23+(PO4)2(OH) · 2H2O
Fe Spheniscidite(NH4,K)(Fe3+,Al)2(PO4)2(OH) · 2H2O
Fe StrengiteFePO4 · 2H2O
SrStrontium
Sr Todorokite(Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O
BaBarium
Ba BaryteBaSO4
Ba Todorokite(Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O
Ba WalthieriteBa0.5Al3(SO4)2(OH)6
HgMercury
Hg CinnabarHgS

Other Regions, Features and Areas containing this locality

Eurasian PlateTectonic Plate
EuropeContinent

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References

 
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