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Monroe County, Michigan, USA i
Regional Level Types
Monroe County County
Michigan State
USA Country

Regional Level Types
Monroe County	County
Michigan	State
USA	Country

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Predictive Mineralogy

View from the quarry floor

Sylvania Minerals Quarry, Berlin Charter Township, Monroe County, Michigan, USA

Maybee Quarry

Maybee Quarry, Maybee, Exeter Township, Monroe County, Michigan, USA

Maybee Quarry

Maybee Quarry, Maybee, Exeter Township, Monroe County, Michigan, USA

View from the quarry floor

Sylvania Minerals Quarry, Berlin Charter Township, Monroe County, Michigan, USA

Maybee Quarry

Maybee Quarry, Maybee, Exeter Township, Monroe County, Michigan, USA

Maybee Quarry

Maybee Quarry, Maybee, Exeter Township, Monroe County, Michigan, USA

View from the quarry floor

Sylvania Minerals Quarry, Berlin Charter Township, Monroe County, Michigan, USA

Maybee Quarry

Maybee Quarry, Maybee, Exeter Township, Monroe County, Michigan, USA

Neighbouring regions:

Wayne County, Michigan, USA

Lucas County, Ohio, USA

Lenawee County, Michigan, USA

Washtenaw County, Michigan, USA

Type:

County

Largest Settlements:

Place	Population
Monroe	20,092 (2017)
Lambertville	9,953 (2017)
Temperance	8,517 (2017)
South Monroe	6,433 (2017)
Dundee	3,994 (2017)
West Monroe	3,503 (2017)

Mindat Locality ID:

23966

Long-form identifier:

mindat:1:2:23966:9

GUID (UUID V4):

Other Languages:

View 35 more...

French:

comté de Monroe, Michigan, États-Unis

German:

Monroe County, Michigan, Vereinigte Staaten

Italian:

contea di Monroe, Michigan, Stati Uniti d'America

Russian:

Монро, Мичиган, Соединённые Штаты Америки

Simplified Chinese:

門羅縣, 密歇根州, 美国

Spanish:

Condado de Monroe, Míchigan, Estados Unidos

Albanian:

Monroe County, Michigan, Shtetet e Bashkuara të Amerikës

Arabic:

مقاطعة مونرو, ميشيغان, الولايات المتحدة

Armenian:

Մոնրո շրջան, Միչիգան, Ամերիկայի Միացյալ Նահանգներ

Basque:

Monroe konderria , Michigan

Bavarian:

Monroe County, Michigan, Vaoanigte Stootn

Bishnupriya Manipuri:

মনরৌ কাউন্টি, মিশিগান, তিলপারাষ্ট্র

Bulgarian:

Монро, Мичиган, Съединени американски щати

Cebuano:

Monroe County, Michigan

Czech:

Monroe County, Michigan, Spojené státy americké

Dutch:

Monroe County, Michigan, Verenigde Staten

Farsi/Persian:

شهرستان مونرو، میشیگان, میشیگان, ایالات متحده آمریکا

Georgian:

მონროს ოლქი, მიჩიგანის შტატი, ამერიკის შეერთებული შტატები

Hebrew:

מחוז מונרו, מישיגן, ארצות הברית

Hungarian:

Monroe megye, Michigan, Amerikai Egyesült Államok

Japanese:

モンロー郡, ミシガン州, アメリカ合衆国

Latin:

Monroe Comitatus, Michigania, Civitates Foederatae Americae

Low Saxon/Low German:

Monroe County, Michigan, USA

Min Dong Chinese:

Monroe Gông, Michigan

Minnan / Hokkien-Taiwanese:

Monroe Kūn

Norwegian:

Monroe County, Michigan, USA

Polish:

Hrabstwo Monroe, Michigan, Stany Zjednoczone

Portuguese:

Condado de Monroe, Michigan, Estados Unidos

Romanian:

Comitatul Monroe, Michigan, Statele Unite ale Americii

Sardinian:

contea de Monroe, Michigan, Istados Unidos de Amèrica

Scottish Gaelic:

Monroe County, Michigan, Na Stàitean Aonaichte

Serbian:

Округ Монро, Мичиген, Сједињене Америчке Државе

Serbo-Croatian:

Monroe County, Michigan, Sjedinjene Američke Države

Swedish:

Monroe County, Michigan, USA

Traditional Chinese:

門羅縣, 密芝根州, 美國

Turkish:

Monroe County, Michigan, Amerika Birleşik Devletleri

Ukrainian:

Монро, Мічиган, Сполучені Штати Америки

Urdu:

مونرو کاؤنٹی، مشی گن, مشی گن, ریاستہائے متحدہ امریکا

Vietnamese:

Quận Monroe, Michigan, Chủng Quốc Hoa Kỳ

Waray:

Condado han Monroe, Michigan, Estados Unidos

Western Punjabi:

منرو کاؤنٹی، مشیگن, مشیگن, امریکہ

Monroe County is a county in the U.S. state of Michigan. The largest city and county seat is Monroe. The county was established as the second county (after Wayne County) in the Michigan Territory in 1817 and was named for then-President James Monroe.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Commodity List

This is a list of exploitable or exploited mineral commodities recorded from this region.

Mineral List

Mineral list contains entries from the region specified including sub-localities

18 valid minerals.

Rock Types Recorded

Rock list contains entries from the region specified including sub-localities

Select Rock List Type

Alphabetical List Tree Diagram

ⓘ Chert

ⓘ Limestone

ⓘ Sandstone

Detailed Mineral List:

ⓘ Anhydrite

Formula: CaSO₄

Locality: Milan wells, Milan, Monroe County, Michigan, USA

References:

Heinrich, E. W., Robinson, George Willard (2004) Mineralogy of Michigan (2nd ed.) A.E. Seaman Mineral Museum and Michigan Technological University. 252pp.

ⓘ 'Apatite'

Formula: Ca₅(PO₄)₃A

Localities:

Enrico Fermi Atomic Energy Plant Quarry, Point aux Peaux (Stony Point), Frenchtown Charter Township, Monroe County, Michigan, USA
Brest, Point aux Peaux (Stony Point), Frenchtown Charter Township, Monroe County, Michigan, USA

ⓘ Baryte

Formula: BaSO₄

Locality: Ida Quarry, Ida, Ida Township, Monroe County, Michigan, USA

References:

Morris, Tom (1983) Michigan Mineralogy. A locality Index. Rocks & Minerals, 58 (3). 107-113 doi:10.1080/00357529.1983.11767128p.108

ⓘ Calcite

Formula: CaCO₃

Localities: Reported from at least 13 localities in this region.

ⓘ Celestine

Formula: SrSO₄

Localities: Reported from at least 13 localities in this region.

Habit: Tabular crystals to 20cm

Colour: blue

ⓘ Dolomite

Formula: CaMg(CO₃)₂

Localities: Reported from at least 6 localities in this region.

ⓘ Fluorite

Formula: CaF₂

Localities:

Unnamed quarry, Newport, Berlin Charter Township, Monroe County, Michigan, USA
Newport Quarry, Newport, Berlin Charter Township, Monroe County, Michigan, USA
Maybee Quarry, Maybee, Exeter Township, Monroe County, Michigan, USA
Holloway Quarry, Newport, Berlin Charter Township, Monroe County, Michigan, USA

ⓘ 'Glauconite'

Formula: K_0.60-0.85(Fe³⁺,Mg,Al)₂(Si,Al)₄O₁₀](OH)₂

Locality: Newport Quarry, Newport, Berlin Charter Township, Monroe County, Michigan, USA

References:

John Krygier specimen

ⓘ Goethite

Formula: Fe³⁺O(OH)

Localities:

Milan Township, Monroe County, Michigan, USA
Petersburg, Monroe County, Michigan, USA
Bedford Township, Monroe County, Michigan, USA

ⓘ Gypsum

Formula: CaSO₄ · 2H₂O

Localities:

Monroe County, Michigan, USA
Maybee Quarry, Maybee, Exeter Township, Monroe County, Michigan, USA

ⓘ Gypsum var. Selenite

Formula: CaSO₄ · 2H₂O

Localities:

Monroe County, Michigan, USA
Maybee Quarry, Maybee, Exeter Township, Monroe County, Michigan, USA

ⓘ Halite

Formula: NaCl

References:

Johnson, K.S., Gonzales, S. (1976) Geology and Salt Deposits of the Michigan Basin. Office of Waste Isolation, Union Carbide Corporation, Oak Ridge, Tennessee 37830.

ⓘ 'Limonite'

Locality: Sylvania Minerals Quarry, Berlin Charter Township, Monroe County, Michigan, USA

References:

Economic Geology of the Sand and Sandstone Resources of Michigan, E.W.Heinrich, Geological Survey Division Report of Investigation 21, 2001, Michigan Dept. of Environmental Quality

ⓘ Magnetite

Formula: Fe²⁺Fe³⁺₂O₄

Locality: Sylvania Minerals Quarry, Berlin Charter Township, Monroe County, Michigan, USA

References:

Economic Geology of the Sand and Sandstone Resources of Michigan, E.W.Heinrich, Geological Survey Division Report of Investigation 21, 2001, Michigan Dept. of Environmental Quality

ⓘ Marcasite

Formula: FeS₂

Locality: France Stone Co. Quarry, Monroe Charter Township, Monroe County, Michigan, USA

References:

Morris, Tom (1983) Michigan Mineralogy. A locality Index. Rocks & Minerals, 58 (3). 107-113 doi:10.1080/00357529.1983.11767128p.108

✪ Native Sulphur

Formula: S₈

Locality: Maybee Quarry, Maybee, Exeter Township, Monroe County, Michigan, USA

Habit: up to 15cm

References:

Morris, Tom (1983) Michigan Mineralogy. A locality Index. Rocks & Minerals, 58 (3). 107-113 doi:10.1080/00357529.1983.11767128p.108

ⓘ Pyrite

Formula: FeS₂

Localities: Reported from at least 8 localities in this region.

ⓘ Quartz

Formula: SiO₂

Localities: Reported from at least 8 localities in this region.

ⓘ Quartz var. Amethyst

Formula: SiO₂

Localities:

Brest, Point aux Peaux (Stony Point), Frenchtown Charter Township, Monroe County, Michigan, USA
Enrico Fermi Atomic Energy Plant Quarry, Point aux Peaux (Stony Point), Frenchtown Charter Township, Monroe County, Michigan, USA

ⓘ Rutile

Formula: TiO₂

Locality: Sylvania Minerals Quarry, Berlin Charter Township, Monroe County, Michigan, USA

References:

Economic Geology of the Sand and Sandstone Resources of Michigan, E.W.Heinrich, Geological Survey Division Report of Investigation 21, 2001, Michigan Dept. of Environmental Quality

ⓘ Sphalerite

Formula: ZnS

Locality: France Stone Co. Quarry, Monroe Charter Township, Monroe County, Michigan, USA

References:

Andrew Haighton Collection

ⓘ Strontianite

Formula: SrCO₃

Localities: Reported from at least 6 localities in this region.

ⓘ 'Tourmaline'

Formula: AD₃G₆(T₆O₁₈)(BO₃)₃X₃Z

Localities:

France Stone Co. Quarry, Monroe Charter Township, Monroe County, Michigan, USA
Sylvania Minerals Quarry, Berlin Charter Township, Monroe County, Michigan, USA

ⓘ Zircon

Formula: Zr(SiO₄)

Locality: Sylvania Minerals Quarry, Berlin Charter Township, Monroe County, Michigan, USA

References:

Economic Geology of the Sand and Sandstone Resources of Michigan, E.W.Heinrich, Geological Survey Division Report of Investigation 21, 2001, Michigan Dept. of Environmental Quality

Gallery:

ZnSⓘ Sphalerite

Sphalerite

Holloway Quarry, Newport, Berlin Charter Township, Monroe County, Michigan, USA

Sphalerite

Holloway Quarry, Newport, Berlin Charter Township, Monroe County, Michigan, USA

Sphalerite

Holloway Quarry, Newport, Berlin Charter Township, Monroe County, Michigan, USA

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
ⓘ	Native Sulphur	1.CC.05	S₈
Group 2 - Sulphides and Sulfosalts
ⓘ	Sphalerite	2.CB.05a	ZnS
ⓘ	Pyrite	2.EB.05a	FeS₂
ⓘ	Marcasite	2.EB.10a	FeS₂
Group 3 - Halides
ⓘ	Halite	3.AA.20	NaCl
ⓘ	Fluorite	3.AB.25	CaF₂
Group 4 - Oxides and Hydroxides
ⓘ	Magnetite	4.BB.05	Fe²⁺Fe³⁺₂O₄
ⓘ	Quartz var. Amethyst	4.DA.05	SiO₂
ⓘ		4.DA.05	SiO₂
ⓘ	Rutile	4.DB.05	TiO₂
ⓘ	Goethite	4.FD.10	Fe³⁺O(OH)
Group 5 - Nitrates and Carbonates
ⓘ	Calcite	5.AB.05	CaCO₃
ⓘ	Dolomite	5.AB.10	CaMg(CO₃)₂
ⓘ	Strontianite	5.AB.15	SrCO₃
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
ⓘ	Anhydrite	7.AD.30	CaSO₄
ⓘ	Baryte	7.AD.35	BaSO₄
ⓘ	Celestine	7.AD.35	SrSO₄
ⓘ	Gypsum	7.CD.40	CaSO₄ · 2H₂O
ⓘ	var. Selenite	7.CD.40	CaSO₄ · 2H₂O
Group 9 - Silicates
ⓘ	Zircon	9.AD.30	Zr(SiO₄)
Unclassified
ⓘ	'Glauconite'	-	K_0.60-0.85(Fe³⁺,Mg,Al)₂(Si,Al)₄O₁₀](OH)₂
ⓘ	'Limonite'	-
ⓘ	'Tourmaline'	-	AD₃G₆(T₆O₁₈)(BO₃)₃X₃Z
ⓘ	'Apatite'	-	Ca₅(PO₄)₃A

List of minerals for each chemical element

H	Hydrogen
H	ⓘ Glauconite	K_0.60-0.85(Fe³⁺,Mg,Al)₂(Si,Al)₄O₁₀](OH)₂
H	ⓘ Goethite	Fe³⁺O(OH)
H	ⓘ Gypsum	CaSO₄ · 2H₂O
H	ⓘ Gypsum var. Selenite	CaSO₄ · 2H₂O
B	Boron
B	ⓘ Tourmaline	AD₃G₆(T₆O₁₈)(BO₃)₃X₃Z
C	Carbon
C	ⓘ Calcite	CaCO₃
C	ⓘ Dolomite	CaMg(CO₃)₂
C	ⓘ Strontianite	SrCO₃
O	Oxygen
O	ⓘ Quartz var. Amethyst	SiO₂
O	ⓘ Anhydrite	CaSO₄
O	ⓘ Baryte	BaSO₄
O	ⓘ Calcite	CaCO₃
O	ⓘ Celestine	SrSO₄
O	ⓘ Dolomite	CaMg(CO₃)₂
O	ⓘ Glauconite	K_0.60-0.85(Fe³⁺,Mg,Al)₂(Si,Al)₄O₁₀](OH)₂
O	ⓘ Goethite	Fe³⁺O(OH)
O	ⓘ Gypsum	CaSO₄ · 2H₂O
O	ⓘ Magnetite	Fe²⁺Fe₂³⁺O₄
O	ⓘ Quartz	SiO₂
O	ⓘ Rutile	TiO₂
O	ⓘ Strontianite	SrCO₃
O	ⓘ Tourmaline	AD₃G₆(T₆O₁₈)(BO₃)₃X₃Z
O	ⓘ Zircon	Zr(SiO₄)
O	ⓘ Gypsum var. Selenite	CaSO₄ · 2H₂O
O	ⓘ Apatite	Ca₅(PO₄)₃A
F	Fluorine
F	ⓘ Fluorite	CaF₂
Na	Sodium
Na	ⓘ Halite	NaCl
Mg	Magnesium
Mg	ⓘ Dolomite	CaMg(CO₃)₂
Mg	ⓘ Glauconite	K_0.60-0.85(Fe³⁺,Mg,Al)₂(Si,Al)₄O₁₀](OH)₂
Al	Aluminium
Al	ⓘ Glauconite	K_0.60-0.85(Fe³⁺,Mg,Al)₂(Si,Al)₄O₁₀](OH)₂
Si	Silicon
Si	ⓘ Quartz var. Amethyst	SiO₂
Si	ⓘ Glauconite	K_0.60-0.85(Fe³⁺,Mg,Al)₂(Si,Al)₄O₁₀](OH)₂
Si	ⓘ Quartz	SiO₂
Si	ⓘ Zircon	Zr(SiO₄)
P	Phosphorus
P	ⓘ Apatite	Ca₅(PO₄)₃A
S	Sulfur
S	ⓘ Anhydrite	CaSO₄
S	ⓘ Baryte	BaSO₄
S	ⓘ Celestine	SrSO₄
S	ⓘ Gypsum	CaSO₄ · 2H₂O
S	ⓘ Marcasite	FeS₂
S	ⓘ Pyrite	FeS₂
S	ⓘ Sphalerite	ZnS
S	ⓘ Native Sulphur	S₈
S	ⓘ Gypsum var. Selenite	CaSO₄ · 2H₂O
Cl	Chlorine
Cl	ⓘ Halite	NaCl
K	Potassium
K	ⓘ Glauconite	K_0.60-0.85(Fe³⁺,Mg,Al)₂(Si,Al)₄O₁₀](OH)₂
Ca	Calcium
Ca	ⓘ Anhydrite	CaSO₄
Ca	ⓘ Calcite	CaCO₃
Ca	ⓘ Dolomite	CaMg(CO₃)₂
Ca	ⓘ Fluorite	CaF₂
Ca	ⓘ Gypsum	CaSO₄ · 2H₂O
Ca	ⓘ Gypsum var. Selenite	CaSO₄ · 2H₂O
Ca	ⓘ Apatite	Ca₅(PO₄)₃A
Ti	Titanium
Ti	ⓘ Rutile	TiO₂
Fe	Iron
Fe	ⓘ Glauconite	K_0.60-0.85(Fe³⁺,Mg,Al)₂(Si,Al)₄O₁₀](OH)₂
Fe	ⓘ Goethite	Fe³⁺O(OH)
Fe	ⓘ Magnetite	Fe²⁺Fe₂³⁺O₄
Fe	ⓘ Marcasite	FeS₂
Fe	ⓘ Pyrite	FeS₂
Zn	Zinc
Zn	ⓘ Sphalerite	ZnS
Sr	Strontium
Sr	ⓘ Celestine	SrSO₄
Sr	ⓘ Strontianite	SrCO₃
Zr	Zirconium
Zr	ⓘ Zircon	Zr(SiO₄)
Ba	Barium
Ba	ⓘ Baryte	BaSO₄

Fossils

There are 9 fossil localities from the PaleoBioDB database within this region.

These data are provided on an experimental basis and are taken from external databases. Mindat.org has no control currently over the accuracy of these data.

Occurrences

Youngest Fossil Listed

0.01 Ma (Pleistocene)

Oldest Fossil Listed

452 Ma (Late/Upper Ordovician)

Stratigraphic Units

Unit	No. Occurrences	Age
Georgian Bay - Meaford	1	449.5 - 443.7 Ma (Paleozoic)
Lorraine	5	452 - 449.5 Ma (Late/Upper Ordovician)

Fossils from Region

Click here to show the list.

Accepted Name	Hierarchy	Age
Rangifer genus	Animalia : Chordata : Mammalia : Artiodactyla : Cervidae : *Rangifer*	0.126 - 0.0117 Ma Pleistocene
Mammut americanum species	Animalia : Chordata : Mammalia : Proboscidea : Mammutidae : Mammut : *Mammut americanum*	0.126 - 0.0117 Ma Pleistocene
Technophorus quincuncialis species	Animalia : Mollusca : Rostroconchia : Ribeirioida : Technophoridae : Technophorus : *Technophorus quincuncialis*	452 - 449.5 Ma Late/Upper Ordovician
Hebertella occidentalis species	Animalia : Brachiopoda : Rhynchonellata : Orthida : Plectorthidae : Hebertella : *Hebertella occidentalis*	452 - 449.5 Ma Late/Upper Ordovician
Strophomena planumbona species	Animalia : Brachiopoda : Strophomenata : Strophomenida : Strophomenidae : Strophomena : *Strophomena planumbona*	452 - 449.5 Ma Late/Upper Ordovician
Rafinesquina alternata species	Animalia : Brachiopoda : Strophomenata : Strophomenida : Rafinesquinidae : Rafinesquina : *Rafinesquina alternata*	452 - 449.5 Ma Late/Upper Ordovician
Pholidops subtruncata species	Animalia : Brachiopoda : Pholidops : *Pholidops subtruncata*	452 - 449.5 Ma Late/Upper Ordovician
Proetus chambliensis species	Animalia : Arthropoda : Trilobita : Proetida : Proetidae : Proetus : *Proetus chambliensis*	452 - 449.5 Ma Late/Upper Ordovician

Fossil Localities

Click to show 4 fossil localities

USA

Michigan
- Monroe County
  - Pleistocene🐚 Flanders Site
  - Late/Upper Ordovician🐚 mouth of Huron river
  - Pleistocene🐚 Oakville
  - Pleistocene🐚 Petersburg

Other Databases

Wikipedia:	https://en.wikipedia.org/wiki/Monroe_County,_Michigan
Wikidata ID:	Q195658
GeoNames ID:	5002348

Localities in this Region

Other Regions, Features and Areas that Intersect

North AmericaContinent

North America PlateTectonic Plate

Granite-Rhyolite ProvinceMagmatic Province
Michigan BasinBasin
Mid-continent RiftNarrow Rift
Shawnee DomainDomain

USA

Midcontinent RiftGeologic Province

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.

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Select Mineral List Type

Commodity List

Mineral List

Rock Types Recorded

Select Rock List Type

Detailed Mineral List:

Gallery:

List of minerals arranged by Strunz 10th Edition classification

List of minerals for each chemical element

Fossils

Other Databases

Localities in this Region

Other Regions, Features and Areas that Intersect

Monroe County, Michigan, USA i
Regional Level Types
Monroe County County
Michigan State
USA Country