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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Hercules Mine, La Negra, Sierra Mojada Municipality, Coahuila, Mexicoi
Regional Level Types
Hercules MineMine
La Negra- not defined -
Sierra Mojada MunicipalityMunicipality
CoahuilaState
MexicoCountry

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PhotosMapsSearch
03454590017272003163986.jpg
Big Dumps

Hercules Mine, La Negra, Sierra Mojada Municipality, Coahuila, Mexico
02806150017272041715480.jpg
beautiful mining town

Hercules Mine, La Negra, Sierra Mojada Municipality, Coahuila, Mexico
08925130017272041713794.jpg
Hercules Mining Complex

Hercules Mine, La Negra, Sierra Mojada Municipality, Coahuila, Mexico
06058590017272002995094.jpg
Big Dumps

Hercules Mine, La Negra, Sierra Mojada Municipality, Coahuila, Mexico
02806150017272041715480.jpg
beautiful mining town

Hercules Mine, La Negra, Sierra Mojada Municipality, Coahuila, Mexico
08925130017272041713794.jpg
Hercules Mining Complex

Hercules Mine, La Negra, Sierra Mojada Municipality, Coahuila, Mexico
03454590017272003163986.jpg
Big Dumps

Hercules Mine, La Negra, Sierra Mojada Municipality, Coahuila, Mexico
02806150017272041715480.jpg
beautiful mining town

Hercules Mine, La Negra, Sierra Mojada Municipality, Coahuila, Mexico
Latitude & Longitude (WGS84):
28° 1' 23'' North , 103° 46' 50'' West
Latitude & Longitude (decimal):
28.02333,-103.78056
GeoHash:
G#: 9sypqmmr9
GRN:
N19W66
Type:
Mine
Köppen climate type:
BSh : Hot semi-arid (steppe) climate
Nearest Settlements:
PlacePopulationDistance
Hércules3,914 (2014)2.4km
El Alicante209 (2014)22.7km
San José de Carranza217 (2014)29.9km
La Rosita257 (2018)66.9km
Mindat Locality ID:
16892
Long-form identifier:
mindat:1:2:16892:7
GUID (UUID V4):
0
Other/historical names associated with this locality:
Negra Mine


Iron mining complex exploiting hydrothermally altered Oligocene lava flows crossed by iron-rich magma bodies emplaced in vertical normal faults.

Currently operated by Minera del Norte, a subsidiary company of Altos Hornos de México.


Ref.: Panczner (1987): 129, 194, 220, 228, 257, 310, 322.
Google Earth for location

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


10 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:

ⓘ Anhydrite
Formula: CaSO4
References:
Megaw, Peter (2023) Personal Communication. Identified by Peter Megaw: Visual Identification
ⓘ Baryte
Formula: BaSO4
ⓘ Calcite
Formula: CaCO3
ⓘ Fluorapatite
Formula: Ca5(PO4)3F
ⓘ Gypsum
Formula: CaSO4 · 2H2O
ⓘ Hematite
Formula: Fe2O3
ⓘ Magnetite
Formula: Fe2+Fe3+2O4
ⓘ Pyrite
Formula: FeS2
ⓘ 'Pyroxene Group'
Formula: ADSi2O6
ⓘ Pyrrhotite
Formula: Fe1-xS
ⓘ Quartz
Formula: SiO2
ⓘ Quartz var. Chalcedony
Formula: SiO2
References:
Megaw, Peter (2023) Personal Communication. Identified by Peter Megaw: Visual Identification

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
ⓘPyrrhotite2.CC.10Fe1-xS
ⓘPyrite2.EB.05aFeS2
Group 4 - Oxides and Hydroxides
ⓘMagnetite4.BB.05Fe2+Fe3+2O4
ⓘHematite4.CB.05Fe2O3
ⓘQuartz
var. Chalcedony		4.DA.05SiO2
ⓘ4.DA.05SiO2
Group 5 - Nitrates and Carbonates
ⓘCalcite5.AB.05CaCO3
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
ⓘAnhydrite7.AD.30CaSO4
ⓘBaryte7.AD.35BaSO4
ⓘGypsum7.CD.40CaSO4 · 2H2O
Group 8 - Phosphates, Arsenates and Vanadates
ⓘFluorapatite8.BN.05Ca5(PO4)3F
Unclassified
ⓘ'Pyroxene Group'-ADSi2O6

List of minerals for each chemical element

HHydrogen
Hⓘ GypsumCaSO4 · 2H2O
CCarbon
Cⓘ CalciteCaCO3
OOxygen
Oⓘ AnhydriteCaSO4
Oⓘ BaryteBaSO4
Oⓘ CalciteCaCO3
Oⓘ Quartz var. ChalcedonySiO2
Oⓘ FluorapatiteCa5(PO4)3F
Oⓘ GypsumCaSO4 · 2H2O
Oⓘ HematiteFe2O3
Oⓘ MagnetiteFe2+Fe23+O4
Oⓘ QuartzSiO2
Oⓘ Pyroxene GroupADSi2O6
FFluorine
Fⓘ FluorapatiteCa5(PO4)3F
SiSilicon
Siⓘ Quartz var. ChalcedonySiO2
Siⓘ QuartzSiO2
Siⓘ Pyroxene GroupADSi2O6
PPhosphorus
Pⓘ FluorapatiteCa5(PO4)3F
SSulfur
Sⓘ AnhydriteCaSO4
Sⓘ BaryteBaSO4
Sⓘ GypsumCaSO4 · 2H2O
Sⓘ PyriteFeS2
Sⓘ PyrrhotiteFe1-xS
CaCalcium
Caⓘ AnhydriteCaSO4
Caⓘ CalciteCaCO3
Caⓘ FluorapatiteCa5(PO4)3F
Caⓘ GypsumCaSO4 · 2H2O
FeIron
Feⓘ HematiteFe2O3
Feⓘ MagnetiteFe2+Fe23+O4
Feⓘ PyriteFeS2
Feⓘ PyrrhotiteFe1-xS
BaBarium
Baⓘ BaryteBaSO4

Other Databases

Wikipedia:https://es.wikipedia.org/wiki/H%C3%A9rcules_(Coahuila)
Wikidata ID:Q5906540

Other Regions, Features and Areas containing this locality

Mexico
North AmericaContinent
North America PlateTectonic Plate

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

Corona-Esquivel, Rodolfo & Tritlla, Jordi & Camprubí, Antoni & González-Partida, Eduardo & Levresse, Gilles & Carrillo-Chávez, Alejandro & Gómez, Alberto. (2003). Revisión sobre el conocimiento de los yacimientos de hierro del Norte de México. Actas de la XXV Convención Internacional de la AIMMGM (pp.1-5). Publisher: Asociación de Ingenieros de Minas, Metalurgistas y Geólogos de México.
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