Vote for your favorite mineral in #MinCup26! - Bournonite vs. Vesuvianite
Cogwheels of bournonite are up against colourful vesuvianite.
Log InRegister
Quick Links : The Mindat ManualThe Rock H. Currier Digital LibraryMindat Newsletter [Free Download]
Home PageAbout MindatThe Mindat ManualHistory of MindatCopyright StatusWho We AreContact UsAdvertise on Mindat
Donate to MindatCorporate SponsorshipSponsor a PageSponsored PagesMindat AdvertisersAdvertise on Mindat
Learning CenterWhat is a mineral?The most common minerals on earthInformation for EducatorsMindat ArticlesThe ElementsThe Rock H. Currier Digital LibraryGeologic TimeExplore Fossils
Minerals by PropertiesMinerals by ChemistryMineral Visual ExplorerAdvanced Locality SearchRandom MineralRandom LocalitySearch by minIDLocalities Near MeSearch ArticlesSearch GlossaryMore Search Options
Search For:
Mineral Name:
Locality Name:
Keyword(s):
 
The Mindat ManualAdd a New PhotoRate PhotosLocality Edit ReportCoordinate Completion ReportAdd Glossary Item
Mining CompaniesStatisticsUsersMineral MuseumsClubs & OrganizationsMineral Shows & EventsThe Mindat DirectoryDevice SettingsThe Mineral QuizTime Machine
Photo SearchPhoto GalleriesSearch by ColorPhoto Colour ExplorerNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day GalleryPhotography

Canada Talc Mine (Madoc Talc mine; Conley mine; Henderson mine), Madoc, Centre Hastings Municipality, Hastings County, Ontario, Canadai
Regional Level Types
Canada Talc Mine (Madoc Talc mine; Conley mine; Henderson mine)Mine
MadocVillage
Centre Hastings MunicipalityMunicipality
Hastings CountyCounty
OntarioProvince
CanadaCountry

This page is currently not sponsored. Click here to sponsor this page.
PhotosMapsSearch
Latitude & Longitude (WGS84):
44° 30' 11'' North , 77° 27' 10'' West
Latitude & Longitude (decimal):
Type:
Nearest Settlements:
PlacePopulationDistance
Quinte West42,697 (2010)36.7km
Belleville49,454 (2018)37.8km
Deseronto1,897 (2008)46.5km
Mindat Locality ID:
10300
Long-form identifier:
mindat:1:2:10300:9
GUID (UUID V4):
0


The oldest continuous producing mine in Ontario.

Talc was discovered in 1881 on the farm of Christopher Henderson which in 1896 became the Henderson mine.

1911 - Conley Mine (originally comprised of north eastward extension of the Henderson orebody) discovered.

1938 - Henderson and Conley properties merged.

1951-1983 Canada Talc Industries Ltd. operated and in 1983 became Canada Talc Ltd.

1999 - Highwood Resources Ltd. acquired Canada Talc. Major mine infrastructure improvements were made including access to new production level and infrastructure and capital equipment installation at mill in Marmora were completed.

2002 - Dynatec Mineral Products Division acquired the industrial minerals division of Highwood Resources and in 2008 Sheritt International acquired property.

2010 - Sherritt closed Canada Talc operations in Madoc.
2011 - The site was rehabilitated.

Geology:

The talc occurs as hydrothermal replacement bodies in dolomitic marble. The largest zone, the Henderson was a steeply dipping, east-west trending tabular sheet of high purity (50-60%) white talc 10 to 60 ft. wide and 900 to 1000 ft. long.

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


15 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:

Arsenopyrite
Formula: FeAsS
Azurite
Formula: Cu3(CO3)2(OH)2
Calcite
Formula: CaCO3
Chalcopyrite
Formula: CuFeS2
Dravite
Formula: NaMg3Al6(Si6O18)(BO3)3(OH)3(OH)
Erythrite
Formula: Co3(AsO4)2 · 8H2O
Malachite
Formula: Cu2(CO3)(OH)2
'Mica Group'
'Plagioclase'
Formula: (Na,Ca)[(Si,Al)AlSi2]O8
Pyrite
Formula: FeS2
Quartz
Formula: SiO2
Rutile
Formula: TiO2
Sphalerite
Formula: ZnS
References:
Talc
Formula: Mg3Si4O10(OH)2
Titanite
Formula: CaTi(SiO4)O
'Tourmaline'
Formula: AD3G6(T6O18)(BO3)3X3Z
Tremolite
Formula: ◻Ca2Mg5(Si8O22)(OH)2
Zircon
Formula: Zr(SiO4)

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
Sphalerite2.CB.05aZnS
Chalcopyrite2.CB.10aCuFeS2
Pyrite2.EB.05aFeS2
Arsenopyrite2.EB.20FeAsS
Group 4 - Oxides and Hydroxides
Quartz4.DA.05SiO2
Rutile4.DB.05TiO2
Group 5 - Nitrates and Carbonates
Calcite5.AB.05CaCO3
Azurite5.BA.05Cu3(CO3)2(OH)2
Malachite5.BA.10Cu2(CO3)(OH)2
Group 8 - Phosphates, Arsenates and Vanadates
Erythrite8.CE.40Co3(AsO4)2 · 8H2O
Group 9 - Silicates
Zircon9.AD.30Zr(SiO4)
Titanite9.AG.15CaTi(SiO4)O
Dravite9.CK.05NaMg3Al6(Si6O18)(BO3)3(OH)3(OH)
Tremolite9.DE.10◻Ca2Mg5(Si8O22)(OH)2
Talc9.EC.05Mg3Si4O10(OH)2
Unclassified
'Tourmaline'-AD3G6(T6O18)(BO3)3X3Z
'Mica Group'-
'Plagioclase'-(Na,Ca)[(Si,Al)AlSi2]O8

List of minerals for each chemical element

HHydrogen
H AzuriteCu3(CO3)2(OH)2
H DraviteNaMg3Al6(Si6O18)(BO3)3(OH)3(OH)
H ErythriteCo3(AsO4)2 · 8H2O
H MalachiteCu2(CO3)(OH)2
H TalcMg3Si4O10(OH)2
H Tremolite◻Ca2Mg5(Si8O22)(OH)2
BBoron
B DraviteNaMg3Al6(Si6O18)(BO3)3(OH)3(OH)
B TourmalineAD3G6(T6O18)(BO3)3X3Z
CCarbon
C AzuriteCu3(CO3)2(OH)2
C CalciteCaCO3
C MalachiteCu2(CO3)(OH)2
OOxygen
O AzuriteCu3(CO3)2(OH)2
O CalciteCaCO3
O DraviteNaMg3Al6(Si6O18)(BO3)3(OH)3(OH)
O ErythriteCo3(AsO4)2 · 8H2O
O MalachiteCu2(CO3)(OH)2
O QuartzSiO2
O RutileTiO2
O TalcMg3Si4O10(OH)2
O TitaniteCaTi(SiO4)O
O TourmalineAD3G6(T6O18)(BO3)3X3Z
O Tremolite◻Ca2Mg5(Si8O22)(OH)2
O ZirconZr(SiO4)
O Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
NaSodium
Na DraviteNaMg3Al6(Si6O18)(BO3)3(OH)3(OH)
Na Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
MgMagnesium
Mg DraviteNaMg3Al6(Si6O18)(BO3)3(OH)3(OH)
Mg TalcMg3Si4O10(OH)2
Mg Tremolite◻Ca2Mg5(Si8O22)(OH)2
AlAluminium
Al DraviteNaMg3Al6(Si6O18)(BO3)3(OH)3(OH)
Al Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
SiSilicon
Si DraviteNaMg3Al6(Si6O18)(BO3)3(OH)3(OH)
Si QuartzSiO2
Si TalcMg3Si4O10(OH)2
Si TitaniteCaTi(SiO4)O
Si Tremolite◻Ca2Mg5(Si8O22)(OH)2
Si ZirconZr(SiO4)
Si Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
SSulfur
S ArsenopyriteFeAsS
S ChalcopyriteCuFeS2
S PyriteFeS2
S SphaleriteZnS
CaCalcium
Ca CalciteCaCO3
Ca TitaniteCaTi(SiO4)O
Ca Tremolite◻Ca2Mg5(Si8O22)(OH)2
Ca Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
TiTitanium
Ti RutileTiO2
Ti TitaniteCaTi(SiO4)O
FeIron
Fe ArsenopyriteFeAsS
Fe ChalcopyriteCuFeS2
Fe PyriteFeS2
CoCobalt
Co ErythriteCo3(AsO4)2 · 8H2O
CuCopper
Cu AzuriteCu3(CO3)2(OH)2
Cu ChalcopyriteCuFeS2
Cu MalachiteCu2(CO3)(OH)2
ZnZinc
Zn SphaleriteZnS
AsArsenic
As ArsenopyriteFeAsS
As ErythriteCo3(AsO4)2 · 8H2O
ZrZirconium
Zr ZirconZr(SiO4)

Other Regions, Features and Areas containing this locality

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

 
and/or  
Mindat.org® is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization. Mindat® and mindat.org® are registered trademarks of the Hudson Institute of Mineralogy.
Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2026, except where stated. Most political location boundaries are © OpenStreetMap contributors. Mindat.org relies on the contributions of thousands of members and supporters. Founded in 2000 by Jolyon Ralph and Ida Chau.
Content on this site may not be used to train, fine-tune, or otherwise develop artificial intelligence or machine learning models without prior written permission - see our Terms & Conditions.
To cite: Ralph, J., Von Bargen, D., Martynov, P., Zhang, J., Que, X., Prabhu, A., Morrison, S. M., Li, W., Chen, W., & Ma, X. (2025). Mindat.org: The open access mineralogy database to accelerate data-intensive geoscience research. American Mineralogist, 110(6), 833–844. doi:10.2138/am-2024-9486.
Privacy Policy - Terms & Conditions - Contact Us / DMCA issues - Report a bug/vulnerability Current server date and time: September 4, 2026 07:57:20 Page updated: February 8, 2026 04:07:21
Go to top of page