Vote for your favorite mineral in #MinCup26! - Quartz vs. Asagiite
It's a classic vs a newbie as the most common named mineral in the crust Quartz is up against an exceedingly-rare sea foam-green mineral discovered just a few years ago Asagiite.
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Serra da Mina Mine, Cercal do Alentejo, Santiago do Cacém, Setúbal, Portugali
Regional Level Types
Serra da Mina MineMine (Inactive)
Cercal do AlentejoCivil Parish
Santiago do CacémMunicipality
SetúbalDistrict
PortugalCountry

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Latitude & Longitude (WGS84):
37° 47' 25'' North , 8° 42' 28'' West
Latitude & Longitude (decimal):
Type:
Mine (Inactive) - last checked 2019
Nearest Settlements:
PlacePopulationDistance
Cercal3,772 (2018)3.2km
São Luis1,006 (2018)9.1km
Vila Nova de Milfontes4,393 (2012)9.9km
Porto Covo1,400 (2011)10.0km
Almograve1,356 (2018)16.6km
Mindat Locality ID:
8105
Long-form identifier:
mindat:1:2:8105:7
GUID (UUID V4):
0
Name(s) in local language(s):
Mina Serra da Mina, Cercal (Cercal do Alentejo), Santiago do Cacém, Distrito de Setubal, Portugal


Inactive (since 2000) Fe-Mn mines.

See https://www.mindat.org/a/goethite_cercal_mines

Gallery entrances are now closed (info 2020)

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Commodity List

This is a list of exploitable or exploited mineral commodities recorded at this locality.


Mineral List


21 valid minerals.

Rock Types Recorded


Select Rock List Type

Alphabetical List Tree Diagram

Detailed Mineral List:

Baryte
Formula: BaSO4
Braunite
Formula: Mn2+Mn3+6(SiO4)O8
Description: Pic 1Pic 2
Chlorargyrite
Formula: AgCl
Corkite
Formula: PbFe3+3(PO4)(SO4)(OH)6
Habit: Trigonal
Colour: Brown to light yellowish
Cryptomelane
Formula: K(Mn4+7Mn3+)O16
Description: XRD analyses by Thomas Witzke
Goethite
Formula: Fe3+O(OH)
Gorceixite
Formula: BaAl3(PO4)(PO3OH)(OH)6
Hematite
Formula: Fe2O3
Hinsdalite
Formula: PbAl3(PO4)(SO4)(OH)6
Iodargyrite
Formula: AgI
Jarosite
Formula: KFe3+3(SO4)2(OH)6
Kintoreite
Formula: PbFe3(PO4)(PO3OH)(OH)6
Lepidocrocite
Formula: Fe3+O(OH)
'Limonite'
'Limonite var. Stilpnosiderite'
Malachite
Formula: Cu2(CO3)(OH)2
'Manganese Oxides'
Manganite ?
Formula: Mn3+O(OH)
Plumbogummite
Formula: PbAl3(PO4)(PO3OH)(OH)6
Colour: yellow
Description: Previously characterized by p-XRD and EDS. New data, by EMPA, showed zoned corkite with external layer of plumbogummite. Plumbogummite can also be found as separated mineral phase, and quite pure (low Fe content)
Plumbojarosite
Formula: Pb0.5Fe3+3(SO4)2(OH)6
'Psilomelane'
Pyrolusite
Formula: Mn4+O2
Pyromorphite
Formula: Pb5(PO4)3Cl
Quartz
Formula: SiO2
Quartz var. Chalcedony
Formula: SiO2
Siderite
Formula: FeCO3
Description: Massive siderite was collected in 2012. Small siderite crystals pseudomorphosed to goethite were also found at the upper level of the mining area. — Rui Nunes, January 2016
'Wad'

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 3 - Halides
Iodargyrite3.AA.10AgI
Chlorargyrite3.AA.15AgCl
Group 4 - Oxides and Hydroxides
Goethite4.00.Fe3+O(OH)
Hematite4.CB.05Fe2O3
Quartz
var. Chalcedony
4.DA.05SiO2
4.DA.05SiO2
Pyrolusite4.DB.05Mn4+O2
Cryptomelane4.DK.05aK(Mn4+7Mn3+)O16
Manganite ?4.FD.15Mn3+O(OH)
Lepidocrocite4.FE.15Fe3+O(OH)
Group 5 - Nitrates and Carbonates
Siderite5.AB.05FeCO3
Malachite5.BA.10Cu2(CO3)(OH)2
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
Baryte7.AD.35BaSO4
Jarosite7.BC.10KFe3+3(SO4)2(OH)6
Plumbojarosite7.BC.10Pb0.5Fe3+3(SO4)2(OH)6
Group 8 - Phosphates, Arsenates and Vanadates
Corkite8.BL.05PbFe3+3(PO4)(SO4)(OH)6
Hinsdalite8.BL.05PbAl3(PO4)(SO4)(OH)6
Gorceixite8.BL.10BaAl3(PO4)(PO3OH)(OH)6
Kintoreite8.BL.10PbFe3(PO4)(PO3OH)(OH)6
Plumbogummite8.BL.10PbAl3(PO4)(PO3OH)(OH)6
Pyromorphite8.BN.05Pb5(PO4)3Cl
Group 9 - Silicates
Braunite9.AG.05Mn2+Mn3+6(SiO4)O8
Unclassified
'Limonite'-
'Psilomelane'-
'Wad'-
'Limonite
var. Stilpnosiderite'
-
'Manganese Oxides'-

List of minerals for each chemical element

HHydrogen
H CorkitePbFe33+(PO4)(SO4)(OH)6
H GoethiteFe3+O(OH)
H GorceixiteBaAl3(PO4)(PO3OH)(OH)6
H HinsdalitePbAl3(PO4)(SO4)(OH)6
H JarositeKFe33+(SO4)2(OH)6
H KintoreitePbFe3(PO4)(PO3OH)(OH)6
H LepidocrociteFe3+O(OH)
H ManganiteMn3+O(OH)
H MalachiteCu2(CO3)(OH)2
H PlumbogummitePbAl3(PO4)(PO3OH)(OH)6
H PlumbojarositePb0.5Fe33+(SO4)2(OH)6
CCarbon
C MalachiteCu2(CO3)(OH)2
C SideriteFeCO3
OOxygen
O BaryteBaSO4
O BrauniteMn2+Mn63+(SiO4)O8
O Quartz var. ChalcedonySiO2
O CorkitePbFe33+(PO4)(SO4)(OH)6
O CryptomelaneK(Mn74+Mn3+)O16
O GoethiteFe3+O(OH)
O GorceixiteBaAl3(PO4)(PO3OH)(OH)6
O HematiteFe2O3
O HinsdalitePbAl3(PO4)(SO4)(OH)6
O JarositeKFe33+(SO4)2(OH)6
O KintoreitePbFe3(PO4)(PO3OH)(OH)6
O LepidocrociteFe3+O(OH)
O ManganiteMn3+O(OH)
O MalachiteCu2(CO3)(OH)2
O PlumbogummitePbAl3(PO4)(PO3OH)(OH)6
O PlumbojarositePb0.5Fe33+(SO4)2(OH)6
O PyrolusiteMn4+O2
O PyromorphitePb5(PO4)3Cl
O QuartzSiO2
O SideriteFeCO3
AlAluminium
Al GorceixiteBaAl3(PO4)(PO3OH)(OH)6
Al HinsdalitePbAl3(PO4)(SO4)(OH)6
Al PlumbogummitePbAl3(PO4)(PO3OH)(OH)6
SiSilicon
Si BrauniteMn2+Mn63+(SiO4)O8
Si Quartz var. ChalcedonySiO2
Si QuartzSiO2
PPhosphorus
P CorkitePbFe33+(PO4)(SO4)(OH)6
P GorceixiteBaAl3(PO4)(PO3OH)(OH)6
P HinsdalitePbAl3(PO4)(SO4)(OH)6
P KintoreitePbFe3(PO4)(PO3OH)(OH)6
P PlumbogummitePbAl3(PO4)(PO3OH)(OH)6
P PyromorphitePb5(PO4)3Cl
SSulfur
S BaryteBaSO4
S CorkitePbFe33+(PO4)(SO4)(OH)6
S HinsdalitePbAl3(PO4)(SO4)(OH)6
S JarositeKFe33+(SO4)2(OH)6
S PlumbojarositePb0.5Fe33+(SO4)2(OH)6
ClChlorine
Cl ChlorargyriteAgCl
Cl PyromorphitePb5(PO4)3Cl
KPotassium
K CryptomelaneK(Mn74+Mn3+)O16
K JarositeKFe33+(SO4)2(OH)6
MnManganese
Mn BrauniteMn2+Mn63+(SiO4)O8
Mn CryptomelaneK(Mn74+Mn3+)O16
Mn ManganiteMn3+O(OH)
Mn PyrolusiteMn4+O2
FeIron
Fe CorkitePbFe33+(PO4)(SO4)(OH)6
Fe GoethiteFe3+O(OH)
Fe HematiteFe2O3
Fe JarositeKFe33+(SO4)2(OH)6
Fe KintoreitePbFe3(PO4)(PO3OH)(OH)6
Fe LepidocrociteFe3+O(OH)
Fe PlumbojarositePb0.5Fe33+(SO4)2(OH)6
Fe SideriteFeCO3
CuCopper
Cu MalachiteCu2(CO3)(OH)2
AgSilver
Ag ChlorargyriteAgCl
Ag IodargyriteAgI
IIodine
I IodargyriteAgI
BaBarium
Ba BaryteBaSO4
Ba GorceixiteBaAl3(PO4)(PO3OH)(OH)6
PbLead
Pb CorkitePbFe33+(PO4)(SO4)(OH)6
Pb HinsdalitePbAl3(PO4)(SO4)(OH)6
Pb KintoreitePbFe3(PO4)(PO3OH)(OH)6
Pb PlumbogummitePbAl3(PO4)(PO3OH)(OH)6
Pb PlumbojarositePb0.5Fe33+(SO4)2(OH)6
Pb PyromorphitePb5(PO4)3Cl

Mindat Articles

Goethite from Cercal Mines by Rui Nunes


Other Regions, Features and Areas containing this locality

Eurasian PlateTectonic Plate
EuropeContinent

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