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Deforest Quarry, Caledon Township, Peel Region, Ontario, Canada

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Latitude & Longitude (WGS84): 43° 47' 42'' North , 79° 57' 30'' West
Latitude & Longitude (decimal): 43.79504,-79.95845
GeoHash:G#: dpz1hs8h9
Locality type:Quarry
Köppen climate type:Dfb : Warm-summer humid continental climate


A quarry in limestone & sandstone located west of Inglewood. The quarry produces grey & red Whirlpool sandstone of Silurian age for use as flagstone. The limestone, also Silurian, caps the sandstone. Orange to white celestite occurs as bladed & tabular aggregates at the contact of limestone and the sandstone as well as a thin vuggy unit of limestone just above the sandstone. Copper minerals occur in the vuggy limestone and at the limestone-sandstone interface extending a few centimeters into the sandstone.

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


14 valid minerals.

Detailed Mineral List:

Bornite
Formula: Cu5FeS4
Description: Basd on color, lack of cleavage and tarnish. Found disseminated in sandstone near seams of orange celestine.
Reference: Reiner Mielke 2014
Calcite
Formula: CaCO3
Reference: Ann P.Sabina 1986, Rocks and Minerals for the Collector, Bancroft-Parry Sound Area and Southern Ontario. GSC Misc. Report 39. and R. Mielke
Celestine
Formula: SrSO4
Habit: Radiating, tabular.
Colour: Orange,grey,white
Reference: Ann, P. Sabina. Geological Survey of Canada Miscellaneous report 39, Deforest Quarry, page 135.
Chalcopyrite
Formula: CuFeS2
Reference: Ann P.Sabina 1986, Rocks and Minerals for the Collector, Bancroft-Parry Sound Area and Southern Ontario. GSC Misc. Report 39. and R. Mielke
Covellite
Formula: CuS
Description: Based on hardness, perfect cleavage, color and tarnish.
Reference: Reiner Mielke 2015
Cryptomelane
Formula: K(Mn4+7Mn3+)O16
Reference: Reiner Mielke 2014
Cuprite
Formula: Cu2O
Habit: Massive
Description: Identified by color,lack of cleavage and association with malachite.
Reference: Ann P.Sabina 1986, Rocks and Minerals for the Collector, Bancroft-Parry Sound Area and Southern Ontario. GSC Misc. Report 39. and R. Mielke 2014
Dolomite
Formula: CaMg(CO3)2
Reference: Ann P.Sabina 1986, Rocks and Minerals for the Collector, Bancroft-Parry Sound Area and Southern Ontario. GSC Misc. Report 39. and R. Mielke
Gypsum
Formula: CaSO4 · 2H2O
Description: Based on crystal form, hardness, color.
Reference: Ann P.Sabina 1986, Rocks and Minerals for the Collector, Bancroft-Parry Sound Area and Southern Ontario. GSC Misc. Report 39. and R. Mielke
'Limonite'
Formula: (Fe,O,OH,H2O)
Reference: Ann P.Sabina 1986, Rocks and Minerals for the Collector, Bancroft-Parry Sound Area and Southern Ontario. GSC Misc. Report 39. and R. Mielke
Malachite
Formula: Cu2(CO3)(OH)2
Habit: Prismatic
Description: Found in the same strata as the orange celestine as botyoidal massive and in crystals at the interface of the underlying sandstone.
Reference: Ann P.Sabina 1986, Rocks and Minerals for the Collector, Bancroft-Parry Sound Area and Southern Ontario. GSC Misc. Report 39. and R. Mielke 2014
'Manganese Oxides'
Habit: Massive
Colour: Black
Description: Crusts along fractures, sometimes dendritic.
Reference: Reiner Mielke 2014
Marcasite
Formula: FeS2
Habit: Flat bladed and flat twins on the surface and replacing calcite crystals. Associated with orange celestine on sandstone.
Description: Identified by solubility in nitric acid, color and crystal form.
Reference: Reiner Mielke 2015
Pyrite
Formula: FeS2
Habit: Massive
Colour: Grey to brass
Description: Occurs disseminated in sandstone.
Reference: Ann P.Sabina 1986, Rocks and Minerals for the Collector, Bancroft-Parry Sound Area and Southern Ontario. GSC Misc. Report 39. and R. Mielke 2015
Pyrolusite ?
Formula: Mn4+O2
Reference: Ann P.Sabina 1986, Rocks and Minerals for the Collector, Bancroft-Parry Sound Area and Southern Ontario. GSC Misc. Report 39. and R. Mielke
Quartz
Formula: SiO2
Habit: Prismatic
Colour: White, colorless
Description: Found replacing coral fossils as micro crystals in the coral cells.
Reference: Reiner Mielke 2015

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
'Bornite'2.BA.15Cu5FeS4
'Chalcopyrite'2.CB.10aCuFeS2
'Covellite'2.CA.05aCuS
'Marcasite'2.EB.10aFeS2
'Pyrite'2.EB.05aFeS2
Group 4 - Oxides and Hydroxides
'Cryptomelane'4.DK.05aK(Mn4+7Mn3+)O16
'Cuprite'4.AA.10Cu2O
'Pyrolusite' ?4.DB.05Mn4+O2
'Quartz'4.DA.05SiO2
Group 5 - Nitrates and Carbonates
'Calcite'5.AB.05CaCO3
'Dolomite'5.AB.10CaMg(CO3)2
'Malachite'5.BA.10Cu2(CO3)(OH)2
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
'Celestine'7.AD.35SrSO4
'Gypsum'7.CD.40CaSO4 · 2H2O
Unclassified Minerals, Rocks, etc.
'Limonite'-(Fe,O,OH,H2O)
'Manganese Oxides'-

List of minerals arranged by Dana 8th Edition classification

Group 2 - SULFIDES
AmBnXp, with (m+n):p = 3:2
Bornite2.5.2.1Cu5FeS4
AmXp, with m:p = 1:1
Covellite2.8.12.1CuS
AmBnXp, with (m+n):p = 1:1
Chalcopyrite2.9.1.1CuFeS2
AmBnXp, with (m+n):p = 1:2
Marcasite2.12.2.1FeS2
Pyrite2.12.1.1FeS2
Group 4 - SIMPLE OXIDES
A2X
Cuprite4.1.1.1Cu2O
AX2
Pyrolusite ?4.4.1.4Mn4+O2
Group 7 - MULTIPLE OXIDES
AB8X16
Cryptomelane7.9.1.2K(Mn4+7Mn3+)O16
Group 14 - ANHYDROUS NORMAL CARBONATES
A(XO3)
Calcite14.1.1.1CaCO3
AB(XO3)2
Dolomite14.2.1.1CaMg(CO3)2
Group 16a - ANHYDROUS CARBONATES CONTAINING HYDROXYL OR HALOGEN
Malachite16a.3.1.1Cu2(CO3)(OH)2
Group 28 - ANHYDROUS ACID AND NORMAL SULFATES
AXO4
Celestine28.3.1.2SrSO4
Group 29 - HYDRATED ACID AND NORMAL SULFATES
AXO4·xH2O
Gypsum29.6.3.1CaSO4 · 2H2O
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz75.1.3.1SiO2
Unclassified Minerals, Rocks, etc.
'Limonite'-(Fe,O,OH,H2O)
'Manganese Oxides'-

List of minerals for each chemical element

HHydrogen
H GypsumCaSO4 · 2H2O
H Limonite(Fe,O,OH,H2O)
H MalachiteCu2(CO3)(OH)2
CCarbon
C CalciteCaCO3
C DolomiteCaMg(CO3)2
C MalachiteCu2(CO3)(OH)2
OOxygen
O CalciteCaCO3
O CelestineSrSO4
O CryptomelaneK(Mn74+Mn3+)O16
O CupriteCu2O
O DolomiteCaMg(CO3)2
O GypsumCaSO4 · 2H2O
O Limonite(Fe,O,OH,H2O)
O MalachiteCu2(CO3)(OH)2
O PyrolusiteMn4+O2
O QuartzSiO2
MgMagnesium
Mg DolomiteCaMg(CO3)2
SiSilicon
Si QuartzSiO2
SSulfur
S BorniteCu5FeS4
S CelestineSrSO4
S ChalcopyriteCuFeS2
S CovelliteCuS
S GypsumCaSO4 · 2H2O
S MarcasiteFeS2
S PyriteFeS2
KPotassium
K CryptomelaneK(Mn74+Mn3+)O16
CaCalcium
Ca CalciteCaCO3
Ca DolomiteCaMg(CO3)2
Ca GypsumCaSO4 · 2H2O
MnManganese
Mn CryptomelaneK(Mn74+Mn3+)O16
Mn PyrolusiteMn4+O2
FeIron
Fe BorniteCu5FeS4
Fe ChalcopyriteCuFeS2
Fe Limonite(Fe,O,OH,H2O)
Fe MarcasiteFeS2
Fe PyriteFeS2
CuCopper
Cu BorniteCu5FeS4
Cu ChalcopyriteCuFeS2
Cu CovelliteCuS
Cu CupriteCu2O
Cu MalachiteCu2(CO3)(OH)2
SrStrontium
Sr CelestineSrSO4

Regional Geology

This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.

Click on geological units on the map for more information. Click here to view full-screen map on Macrostrat.org

Paleozoic
251.902 - 541 Ma



ID: 3187973
Paleozoic sedimentary rocks

Age: Phanerozoic (251.902 - 541 Ma)

Lithology: Sedimentary rocks

Reference: Chorlton, L.B. Generalized geology of the world: bedrock domains and major faults in GIS format: a small-scale world geology map with an extended geological attribute database. doi: 10.4095/223767. Geological Survey of Canada, Open File 5529. [154]

Silurian
419.2 - 443.8 Ma



ID: 3293985
Clinton-Cataract Group

Age: Silurian (419.2 - 443.8 Ma)

Stratigraphic Name: Whirlpool Formation; Manitoulin Formation; Cabot Head Formation; Reynales Formation; Fossil Hill Formation

Description: shales, sandstones, dolostones: Whirlpool, Manitoulin, Cabot Head, Reynales and Fossil Hill formations

Comments: thin units variously shale-, sandstone-, dolostone- or limestone-dominated; one or more of Whirlpool, Manitoulin, Cabot Head, Grimsby, Thorold, Neahga, Reynales, Irondequoit, Reynales, Rochester, Decew, Dyer Bay, Wingfield, St. Edmund, or Fossil Hill formations

Reference: Armstrong, D.K, and J.E.P. Dodge. Paleozoic geology of southern Ontario. Ontario Geological Survey Miscellaneous Release–Data 219. [180]

Wenlock - Early Silurian
427.4 - 443.8 Ma



ID: 609942
Clinton Group; Cataract Group

Age: Silurian (427.4 - 443.8 Ma)

Stratigraphic Name: Clinton Group; Cataract Group

Lithology: Sandstone, shale, dolostone, siltstone

Reference: Ontario Geological Survey. 1:250 000 scale bedrock geology of Ontario. ISBN 978-1-4435-5705-4. Miscellaneous Release–Data 126 - Revision 1. [1]

Data and map coding provided by Macrostrat.org, used under Creative Commons Attribution 4.0 License

References

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Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Ann P.Sabina (1986), Rocks and Minerals for the Collector, Bancroft-Parry Sound Area and Southern Ontario. GSC Misc. Report 39 p.135


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