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Zacarias pit, Mara Rosa Gold Project, Mara Rosa, Goiás, Brazili
| Regional Level Types | |
|---|---|
| Zacarias pit | Open-Cast Mine (Inactive) |
| Mara Rosa Gold Project | Mine (Active) |
| Mara Rosa | Municipality |
| Goiás | State |
| Brazil | Country |
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Latitude & Longitude (WGS84):
13° 58' 48'' South , 49° 16' 30'' West
Latitude & Longitude (decimal):
Type:
Open-Cast Mine (Inactive) - last checked 2025
Köppen climate type:
Name(s) in local language(s):
Mina de ouro Zacarias
A gold, silver and baryte mine.
The deposit is probably of syngenetic origin, hosted in baryte-rich felsic volcanic and sedimentary rocks of Neoproterozoic age.
Located about 15 km west of the Posse Mine.
volcanogenic disseminated gold deposit
0.65 Mt at 4.36 g/t Au, 48.06 g/t Ag, 10.67% Ba
This deposit, with lenticular geometry and basic metavolcanics and chemical metasediments as host rocks, is considered to represent different kinds of sulfide- and barite-rich rocks generated in a proximal volcano-exhalative environment. Aluminous quartz– biotite schists, probably the product of metamorphism of clay – sericite-rich debris derived from hydrothermal vents, are representative of hydrothermal alteration in the deposit. Gold mineralization occurs within barite-bearing quartzite in three main zones known as south, central and north lodes. By far, the most important is the south lode which extends for about 700 m along strike, is 2 – 15 m wide and plunges at N50 –60jW. Gold content tends to be proportional to barite content. This body is responsible for ca. 90% of the total open pittable gold reserves of 650,000 t at 4.36 g/t Ag, 48.06 g/t Ag and 10.67% barite.
The deposit is probably of syngenetic origin, hosted in baryte-rich felsic volcanic and sedimentary rocks of Neoproterozoic age.
Located about 15 km west of the Posse Mine.
volcanogenic disseminated gold deposit
0.65 Mt at 4.36 g/t Au, 48.06 g/t Ag, 10.67% Ba
This deposit, with lenticular geometry and basic metavolcanics and chemical metasediments as host rocks, is considered to represent different kinds of sulfide- and barite-rich rocks generated in a proximal volcano-exhalative environment. Aluminous quartz– biotite schists, probably the product of metamorphism of clay – sericite-rich debris derived from hydrothermal vents, are representative of hydrothermal alteration in the deposit. Gold mineralization occurs within barite-bearing quartzite in three main zones known as south, central and north lodes. By far, the most important is the south lode which extends for about 700 m along strike, is 2 – 15 m wide and plunges at N50 –60jW. Gold content tends to be proportional to barite content. This body is responsible for ca. 90% of the total open pittable gold reserves of 650,000 t at 4.36 g/t Ag, 48.06 g/t Ag and 10.67% barite.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsCommodity List
This is a list of exploitable or exploited mineral commodities recorded at this locality.Mineral List
25 valid minerals.
Rock Types Recorded
Select Rock List Type
Alphabetical List Tree DiagramDetailed Mineral List:
List of minerals arranged by Strunz 10th Edition classification
| Group 1 - Elements | |||
|---|---|---|---|
| ⓘ | Native Gold var. Electrum | 1.AA.05 | (Au,Ag) |
| ⓘ | 1.AA.05 | Au | |
| ⓘ | Graphite | 1.CB.05a | C |
| Group 2 - Sulphides and Sulfosalts | |||
| ⓘ | Covellite | 2.CA.05a | CuS |
| ⓘ | Sphalerite | 2.CB.05a | ZnS |
| ⓘ | Chalcopyrite | 2.CB.10a | CuFeS2 |
| ⓘ | Galena | 2.CD.10 | PbS |
| ⓘ | Molybdenite | 2.EA.30 | MoS2 |
| ⓘ | Pyrite | 2.EB.05a | FeS2 |
| ⓘ | Bournonite | 2.GA.50 | PbCuSbS3 |
| ⓘ | 'Freibergite Subgroup' | 2.GB.05 | (Ag6,[Ag6]4+)(Cu4 C2+2)Sb4S12S0-1 |
| ⓘ | 'Tetrahedrite Subgroup' | 2.GB.05 | Cu6(Cu4C2+2)Sb4S12S |
| ⓘ | Boulangerite | 2.HC.15 | Pb5Sb4S11 |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | Magnetite | 4.BB.05 | Fe2+Fe3+2O4 |
| ⓘ | Spinel | 4.BB.05 | MgAl2O4 |
| ⓘ | Quartz | 4.DA.05 | SiO2 |
| Group 5 - Nitrates and Carbonates | |||
| ⓘ | Calcite | 5.AB.05 | CaCO3 |
| Group 7 - Sulphates, Chromates, Molybdates and Tungstates | |||
| ⓘ | Baryte | 7.AD.35 | BaSO4 |
| Group 9 - Silicates | |||
| ⓘ | Sillimanite | 9.AF.05 | Al2(SiO4)O |
| ⓘ | Kyanite | 9.AF.15 | Al2(SiO4)O |
| ⓘ | Staurolite | 9.AF.30 | Fe2+2Al9Si4O23(OH) |
| ⓘ | Epidote | 9.BG.05a | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| ⓘ | Anthophyllite | 9.DD.05 | ◻Mg2Mg5(Si8O22)(OH)2 |
| ⓘ | Cummingtonite | 9.DE.05 | ◻Mg2Mg5(Si8O22)(OH)2 |
| ⓘ | Talc | 9.EC.05 | Mg3Si4O10(OH)2 |
| ⓘ | Muscovite | 9.EC.15 | KAl2(AlSi3O10)(OH)2 |
| ⓘ | var. Sericite | 9.EC.15 | KAl2(AlSi3O10)(OH)2 |
| ⓘ | var. Oellacherite | 9.EC.15 | KAl2(AlSi3O10)(OH)2 |
| ⓘ | Phlogopite | 9.EC.20 | KMg3(AlSi3O10)(OH)2 |
| ⓘ | Albite | 9.FA.35 | Na(AlSi3O8) |
| Unclassified | |||
| ⓘ | 'Biotite' | - | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| ⓘ | 'Chlorite Group' | - | |
| ⓘ | 'K Feldspar' | - | |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Anthophyllite | ◻Mg2Mg5(Si8O22)(OH)2 |
| H | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| H | ⓘ Cummingtonite | ◻Mg2Mg5(Si8O22)(OH)2 |
| H | ⓘ Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| H | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| H | ⓘ Phlogopite | KMg3(AlSi3O10)(OH)2 |
| H | ⓘ Staurolite | Fe22+Al9Si4O23(OH) |
| H | ⓘ Talc | Mg3Si4O10(OH)2 |
| H | ⓘ Muscovite var. Sericite | KAl2(AlSi3O10)(OH)2 |
| H | ⓘ Muscovite var. Oellacherite | KAl2(AlSi3O10)(OH)2 |
| C | Carbon | |
| C | ⓘ Calcite | CaCO3 |
| C | ⓘ Graphite | C |
| O | Oxygen | |
| O | ⓘ Albite | Na(AlSi3O8) |
| O | ⓘ Anthophyllite | ◻Mg2Mg5(Si8O22)(OH)2 |
| O | ⓘ Baryte | BaSO4 |
| O | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| O | ⓘ Calcite | CaCO3 |
| O | ⓘ Cummingtonite | ◻Mg2Mg5(Si8O22)(OH)2 |
| O | ⓘ Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| O | ⓘ Kyanite | Al2(SiO4)O |
| O | ⓘ Magnetite | Fe2+Fe23+O4 |
| O | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| O | ⓘ Phlogopite | KMg3(AlSi3O10)(OH)2 |
| O | ⓘ Quartz | SiO2 |
| O | ⓘ Sillimanite | Al2(SiO4)O |
| O | ⓘ Spinel | MgAl2O4 |
| O | ⓘ Staurolite | Fe22+Al9Si4O23(OH) |
| O | ⓘ Talc | Mg3Si4O10(OH)2 |
| O | ⓘ Muscovite var. Sericite | KAl2(AlSi3O10)(OH)2 |
| O | ⓘ Muscovite var. Oellacherite | KAl2(AlSi3O10)(OH)2 |
| F | Fluorine | |
| F | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| Na | Sodium | |
| Na | ⓘ Albite | Na(AlSi3O8) |
| Mg | Magnesium | |
| Mg | ⓘ Anthophyllite | ◻Mg2Mg5(Si8O22)(OH)2 |
| Mg | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| Mg | ⓘ Cummingtonite | ◻Mg2Mg5(Si8O22)(OH)2 |
| Mg | ⓘ Phlogopite | KMg3(AlSi3O10)(OH)2 |
| Mg | ⓘ Spinel | MgAl2O4 |
| Mg | ⓘ Talc | Mg3Si4O10(OH)2 |
| Al | Aluminium | |
| Al | ⓘ Albite | Na(AlSi3O8) |
| Al | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| Al | ⓘ Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| Al | ⓘ Kyanite | Al2(SiO4)O |
| Al | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| Al | ⓘ Phlogopite | KMg3(AlSi3O10)(OH)2 |
| Al | ⓘ Sillimanite | Al2(SiO4)O |
| Al | ⓘ Spinel | MgAl2O4 |
| Al | ⓘ Staurolite | Fe22+Al9Si4O23(OH) |
| Al | ⓘ Muscovite var. Sericite | KAl2(AlSi3O10)(OH)2 |
| Al | ⓘ Muscovite var. Oellacherite | KAl2(AlSi3O10)(OH)2 |
| Si | Silicon | |
| Si | ⓘ Albite | Na(AlSi3O8) |
| Si | ⓘ Anthophyllite | ◻Mg2Mg5(Si8O22)(OH)2 |
| Si | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| Si | ⓘ Cummingtonite | ◻Mg2Mg5(Si8O22)(OH)2 |
| Si | ⓘ Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| Si | ⓘ Kyanite | Al2(SiO4)O |
| Si | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| Si | ⓘ Phlogopite | KMg3(AlSi3O10)(OH)2 |
| Si | ⓘ Quartz | SiO2 |
| Si | ⓘ Sillimanite | Al2(SiO4)O |
| Si | ⓘ Staurolite | Fe22+Al9Si4O23(OH) |
| Si | ⓘ Talc | Mg3Si4O10(OH)2 |
| Si | ⓘ Muscovite var. Sericite | KAl2(AlSi3O10)(OH)2 |
| Si | ⓘ Muscovite var. Oellacherite | KAl2(AlSi3O10)(OH)2 |
| S | Sulfur | |
| S | ⓘ Baryte | BaSO4 |
| S | ⓘ Boulangerite | Pb5Sb4S11 |
| S | ⓘ Bournonite | PbCuSbS3 |
| S | ⓘ Chalcopyrite | CuFeS2 |
| S | ⓘ Covellite | CuS |
| S | ⓘ Freibergite Subgroup | (Ag6,[Ag6]4+)(Cu4 C22+)Sb4S12S0-1 |
| S | ⓘ Galena | PbS |
| S | ⓘ Molybdenite | MoS2 |
| S | ⓘ Pyrite | FeS2 |
| S | ⓘ Sphalerite | ZnS |
| S | ⓘ Tetrahedrite Subgroup | Cu6(Cu4C22+)Sb4S12S |
| K | Potassium | |
| K | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| K | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| K | ⓘ Phlogopite | KMg3(AlSi3O10)(OH)2 |
| K | ⓘ Muscovite var. Sericite | KAl2(AlSi3O10)(OH)2 |
| K | ⓘ Muscovite var. Oellacherite | KAl2(AlSi3O10)(OH)2 |
| Ca | Calcium | |
| Ca | ⓘ Calcite | CaCO3 |
| Ca | ⓘ Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| Ti | Titanium | |
| Ti | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| Fe | Iron | |
| Fe | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| Fe | ⓘ Chalcopyrite | CuFeS2 |
| Fe | ⓘ Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| Fe | ⓘ Magnetite | Fe2+Fe23+O4 |
| Fe | ⓘ Pyrite | FeS2 |
| Fe | ⓘ Staurolite | Fe22+Al9Si4O23(OH) |
| Cu | Copper | |
| Cu | ⓘ Bournonite | PbCuSbS3 |
| Cu | ⓘ Chalcopyrite | CuFeS2 |
| Cu | ⓘ Covellite | CuS |
| Cu | ⓘ Freibergite Subgroup | (Ag6,[Ag6]4+)(Cu4 C22+)Sb4S12S0-1 |
| Cu | ⓘ Tetrahedrite Subgroup | Cu6(Cu4C22+)Sb4S12S |
| Zn | Zinc | |
| Zn | ⓘ Sphalerite | ZnS |
| Mo | Molybdenum | |
| Mo | ⓘ Molybdenite | MoS2 |
| Ag | Silver | |
| Ag | ⓘ Native Gold var. Electrum | (Au,Ag) |
| Ag | ⓘ Freibergite Subgroup | (Ag6,[Ag6]4+)(Cu4 C22+)Sb4S12S0-1 |
| Sb | Antimony | |
| Sb | ⓘ Boulangerite | Pb5Sb4S11 |
| Sb | ⓘ Bournonite | PbCuSbS3 |
| Sb | ⓘ Freibergite Subgroup | (Ag6,[Ag6]4+)(Cu4 C22+)Sb4S12S0-1 |
| Sb | ⓘ Tetrahedrite Subgroup | Cu6(Cu4C22+)Sb4S12S |
| Ba | Barium | |
| Ba | ⓘ Baryte | BaSO4 |
| Au | Gold | |
| Au | ⓘ Native Gold var. Electrum | (Au,Ag) |
| Au | ⓘ Native Gold | Au |
| Pb | Lead | |
| Pb | ⓘ Boulangerite | Pb5Sb4S11 |
| Pb | ⓘ Bournonite | PbCuSbS3 |
| Pb | ⓘ Galena | PbS |
Other Regions, Features and Areas containing this locality
South AmericaContinent
South America PlateTectonic Plate
- Brazilian ShieldShield
- Tocantins ProvinceOrogenic Belt
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
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References
PALERMO, NELY, PORTO, CLAUDIO GERHEIM, COSTA JR., CARLOS NOGUEIRA DA (2000) THE MARA ROSA GOLD DISTRICT, CENTRAL BRAZIL. Revista Brasileira de Geociências, 30 (2) 256-260 doi:10.25249/0375-7536.2000302256260
OLIVEIRA, CLAUDINEI GOUVEIA DE; QUEIROZ, CLÁUDIA LIMA DE; PIMENTEL, MÁRCIO MARTINS (2000) The Arenopólis-Mara Rosa Gold-Copper Belt, Neoproterozoic Goiás Magmatic Arc. Revista Brasileira de Geociências, 30 (2). p.219-221. doi:10.25249/0375-7536.2000302219221
KUYUMJIAN, RAUL MINAS (2000) Magmatic arc and associated gold, copper, silver, and barite deposits in the state of Goiás, central Brazil: characteristics and speculations. Revista Brasileira de Geociências, 30 (2). 285-288 doi:10.25249/0375-7536.2000302285288
Zacarias pit, Mara Rosa Gold Project, Mara Rosa, Goiás, Brazil