Group 1 - Elements
ⓘ	Gold	1.AA.05	Au
Group 2 - Sulphides and Sulfosalts
ⓘ	Chalcopyrite	2.CB.10a	CuFeS₂
ⓘ	Marcasite	2.EB.10a	FeS₂
ⓘ	Pyrite	2.EB.05a	FeS₂
ⓘ	Sphalerite	2.CB.05a	ZnS
Group 4 - Oxides and Hydroxides
ⓘ	Gibbsite	4.FE.10	Al(OH)₃
ⓘ	Goethite	4.00.	α-Fe³⁺O(OH)
ⓘ	Hematite	4.CB.05	Fe₂O₃
ⓘ	Quartz	4.DA.05	SiO₂
ⓘ	var. Smoky Quartz	4.DA.05	SiO₂
Group 5 - Nitrates and Carbonates
ⓘ	Ankerite	5.AB.10	Ca(Fe²⁺,Mg)(CO₃)₂
ⓘ	Calcite	5.AB.05	CaCO₃
ⓘ	Dolomite	5.AB.10	CaMg(CO₃)₂
ⓘ	Malachite	5.BA.10	Cu₂(CO₃)(OH)₂
ⓘ	Siderite	5.AB.05	FeCO₃
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
ⓘ	Baryte	7.AD.35	BaSO₄
ⓘ	Felsőbányaite	7.DD.05	Al₄(SO₄)(OH)₁₀ · 4H₂O
ⓘ	Gypsum	7.CD.40	CaSO₄ · 2H₂O
ⓘ	Halotrichite	7.CB.85	FeAl₂(SO₄)₄ · 22H₂O
Group 8 - Phosphates, Arsenates and Vanadates
ⓘ	Fluorapatite	8.BN.05	Ca₅(PO₄)₃F
Group 9 - Silicates
ⓘ	Kaolinite	9.ED.05	Al₂(Si₂O₅)(OH)₄
Unclassified Minerals, Rocks, etc.
ⓘ	'Wad'	-

List of minerals for each chemical element

H	Hydrogen
H	ⓘ Goethite	α-Fe³⁺O(OH)
H	ⓘ Malachite	Cu₂(CO₃)(OH)₂
H	ⓘ Felsőbányaite	Al₄(SO₄)(OH)₁₀ · 4H₂O
H	ⓘ Gibbsite	Al(OH)₃
H	ⓘ Gypsum	CaSO₄ · 2H₂O
H	ⓘ Kaolinite	Al₂(Si₂O₅)(OH)₄
H	ⓘ Halotrichite	FeAl₂(SO₄)₄ · 22H₂O
C	Carbon
C	ⓘ Calcite	CaCO₃
C	ⓘ Siderite	FeCO₃
C	ⓘ Dolomite	CaMg(CO₃)₂
C	ⓘ Malachite	Cu₂(CO₃)(OH)₂
C	ⓘ Ankerite	Ca(Fe²⁺,Mg)(CO₃)₂
O	Oxygen
O	ⓘ Calcite	CaCO₃
O	ⓘ Siderite	FeCO₃
O	ⓘ Baryte	BaSO₄
O	ⓘ Dolomite	CaMg(CO₃)₂
O	ⓘ Goethite	α-Fe³⁺O(OH)
O	ⓘ Malachite	Cu₂(CO₃)(OH)₂
O	ⓘ Quartz	SiO₂
O	ⓘ Ankerite	Ca(Fe²⁺,Mg)(CO₃)₂
O	ⓘ Felsőbányaite	Al₄(SO₄)(OH)₁₀ · 4H₂O
O	ⓘ Fluorapatite	Ca₅(PO₄)₃F
O	ⓘ Gibbsite	Al(OH)₃
O	ⓘ Gypsum	CaSO₄ · 2H₂O
O	ⓘ Hematite	Fe₂O₃
O	ⓘ Kaolinite	Al₂(Si₂O₅)(OH)₄
O	ⓘ Quartz var. Smoky Quartz	SiO₂
O	ⓘ Halotrichite	FeAl₂(SO₄)₄ · 22H₂O
F	Fluorine
F	ⓘ Fluorapatite	Ca₅(PO₄)₃F
Mg	Magnesium
Mg	ⓘ Dolomite	CaMg(CO₃)₂
Mg	ⓘ Ankerite	Ca(Fe²⁺,Mg)(CO₃)₂
Al	Aluminium
Al	ⓘ Felsőbányaite	Al₄(SO₄)(OH)₁₀ · 4H₂O
Al	ⓘ Gibbsite	Al(OH)₃
Al	ⓘ Kaolinite	Al₂(Si₂O₅)(OH)₄
Al	ⓘ Halotrichite	FeAl₂(SO₄)₄ · 22H₂O
Si	Silicon
Si	ⓘ Quartz	SiO₂
Si	ⓘ Kaolinite	Al₂(Si₂O₅)(OH)₄
Si	ⓘ Quartz var. Smoky Quartz	SiO₂
P	Phosphorus
P	ⓘ Fluorapatite	Ca₅(PO₄)₃F
S	Sulfur
S	ⓘ Baryte	BaSO₄
S	ⓘ Marcasite	FeS₂
S	ⓘ Pyrite	FeS₂
S	ⓘ Sphalerite	ZnS
S	ⓘ Felsőbányaite	Al₄(SO₄)(OH)₁₀ · 4H₂O
S	ⓘ Chalcopyrite	CuFeS₂
S	ⓘ Gypsum	CaSO₄ · 2H₂O
S	ⓘ Halotrichite	FeAl₂(SO₄)₄ · 22H₂O
Ca	Calcium
Ca	ⓘ Calcite	CaCO₃
Ca	ⓘ Dolomite	CaMg(CO₃)₂
Ca	ⓘ Ankerite	Ca(Fe²⁺,Mg)(CO₃)₂
Ca	ⓘ Fluorapatite	Ca₅(PO₄)₃F
Ca	ⓘ Gypsum	CaSO₄ · 2H₂O
Fe	Iron
Fe	ⓘ Siderite	FeCO₃
Fe	ⓘ Goethite	α-Fe³⁺O(OH)
Fe	ⓘ Marcasite	FeS₂
Fe	ⓘ Pyrite	FeS₂
Fe	ⓘ Ankerite	Ca(Fe²⁺,Mg)(CO₃)₂
Fe	ⓘ Chalcopyrite	CuFeS₂
Fe	ⓘ Hematite	Fe₂O₃
Fe	ⓘ Halotrichite	FeAl₂(SO₄)₄ · 22H₂O
Cu	Copper
Cu	ⓘ Malachite	Cu₂(CO₃)(OH)₂
Cu	ⓘ Chalcopyrite	CuFeS₂
Zn	Zinc
Zn	ⓘ Sphalerite	ZnS
Ba	Barium
Ba	ⓘ Baryte	BaSO₄
Au	Gold
Au	ⓘ Gold	Au

Fossils

There are 2 fossil localities from the PaleoBioDB database within this region.

BETA TEST - 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

306 Ma (Carboniferous)

Oldest Fossil Listed

314 Ma (Carboniferous)

Fossils from Region

Click here to show the list.

Accepted Name	Hierarchy	Age
Hibbardella genus	Animalia : Chordata : Conodonta : *Hibbardella*	313.8 - 305.9 Ma Carboniferous
Idiognathodus genus	Animalia : Chordata : Conodonta : Ozarkodinida : Idiognathodontidae : *Idiognathodus*	313.8 - 305.9 Ma Carboniferous
Oulodus genus	Animalia : Chordata : Hibbardellidae : *Oulodus*	313.8 - 305.9 Ma Carboniferous
Ozarkodina genus	Animalia : Chordata : Prioniodontidae : *Ozarkodina*	313.8 - 305.9 Ma Carboniferous
Streptognathodus genus	Animalia : Chordata : Polygnathidae : *Streptognathodus*	313.8 - 305.9 Ma Carboniferous
Lonchodus genus	Animalia : Chordata : Conodonta : Conodontophorida : Prioniodidae : *Lonchodus*	313.8 - 305.9 Ma Carboniferous

Fossil Localities

Click to show 2 fossil localities

USA

Iowa
- Marion Co.
  - Carboniferous🐚 Northwest of Knoxville
  - Carboniferous🐚 South of Knoxville

Other Databases

Wikipedia:	https://en.wikipedia.org/wiki/Marion_County,_Iowa
Wikidata ID:	Q485452
GeoNames ID:	4866274

External Links

https://co.marion.ia.us/maps/historical/MarionCo_CoalMines_ByName.pdf - Marion County Coal Mine Map

Localities in this Region

Other Regions, Features and Areas that Intersect

North America PlateTectonic Plate

Great Plains DomainDomain
Mid-continent DomainDomain

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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Marion Co., Iowa, USAiRegional Level TypesMarion Co.County IowaState USACountry function showexplain() { $("#locexplain").toggle(); if (typeof movemap === "function") movemap(); }

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List of minerals arranged by Strunz 10th Edition classification