Commodities (Major) - Iron
Deposit Type: Secondary Enrichment
Development Status: Past Producer
Deposit Model: 241: Superior Fe (BC name is Lake Superior & Rapitan types iron-formation)
Host Rock: Iron Formation

An iron mine worked from 1890 to 1913. This mine worked the Proterozoic Hemlock Volcanics Iron-formation of the Marquette Range supergroup. The roof of one part of this mine passed very close to the bed of the Michigamme River, close enough that miners could hear logs grinding against the river bottom as the logs floated down the river to sawmills. On September 28, 1893, the roof gave way under the river, flooding the mine and taking 27 lives.

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.

ⓘ Iron

Mineral List

7 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

ⓘ Banded iron formation

Detailed Mineral List:

ⓘ 'Chlorite Group'

References:

(2005) Mineral Resources Data System (MRDS), US Geological Survey.

ⓘ Grunerite

Formula: ◻{Fe²⁺₂}{Fe²⁺₅}(Si₈O₂₂)(OH)₂

References:

(2005) Mineral Resources Data System (MRDS), US Geological Survey.

ⓘ Gypsum

Formula: CaSO₄ · 2H₂O

References:

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

ⓘ Gypsum var. Selenite

Formula: CaSO₄ · 2H₂O

References:

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

ⓘ Hematite

Formula: Fe₂O₃

References:

(2005) Mineral Resources Data System (MRDS), US Geological Survey.

ⓘ 'Limonite'

References:

(2005) Mineral Resources Data System (MRDS), US Geological Survey.

ⓘ 'Mica Group'

References:

(2005) Mineral Resources Data System (MRDS), US Geological Survey.

ⓘ Pyrite

Formula: FeS₂

References:

(2005) Mineral Resources Data System (MRDS), US Geological Survey.

ⓘ Rutile

Formula: TiO₂

References:

(2005) Mineral Resources Data System (MRDS), US Geological Survey.

ⓘ Siderite

Formula: FeCO₃

References:

(2005) Mineral Resources Data System (MRDS), US Geological Survey.

ⓘ Stilpnomelane

Formula: (K,Ca,Na)(Fe,Mg,Al)₈(Si,Al)₁₂(O,OH)₃₆ · nH₂O

References:

(2005) Mineral Resources Data System (MRDS), US Geological Survey.

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
ⓘ	Pyrite	2.EB.05a	FeS₂
Group 4 - Oxides and Hydroxides
ⓘ	Hematite	4.CB.05	Fe₂O₃
ⓘ	Rutile	4.DB.05	TiO₂
Group 5 - Nitrates and Carbonates
ⓘ	Siderite	5.AB.05	FeCO₃
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
ⓘ	Gypsum	7.CD.40	CaSO₄ · 2H₂O
ⓘ	var. Selenite	7.CD.40	CaSO₄ · 2H₂O
Group 9 - Silicates
ⓘ	Grunerite	9.DE.05	◻{Fe²⁺₂}{Fe²⁺₅}(Si₈O₂₂)(OH)₂
ⓘ	Stilpnomelane	9.EG.40	(K,Ca,Na)(Fe,Mg,Al)₈(Si,Al)₁₂(O,OH)₃₆ · nH₂O
Unclassified
ⓘ	'Chlorite Group'	-
ⓘ	'Limonite'	-
ⓘ	'Mica Group'	-

List of minerals for each chemical element

H	Hydrogen
H	ⓘ Grunerite	◻{Fe₂²⁺}{Fe₅²⁺}(Si₈O₂₂)(OH)₂
H	ⓘ Gypsum	CaSO₄ · 2H₂O
H	ⓘ Stilpnomelane	(K,Ca,Na)(Fe,Mg,Al)₈(Si,Al)₁₂(O,OH)₃₆ · nH₂O
H	ⓘ Gypsum var. Selenite	CaSO₄ · 2H₂O
C	Carbon
C	ⓘ Siderite	FeCO₃
O	Oxygen
O	ⓘ Grunerite	◻{Fe₂²⁺}{Fe₅²⁺}(Si₈O₂₂)(OH)₂
O	ⓘ Gypsum	CaSO₄ · 2H₂O
O	ⓘ Hematite	Fe₂O₃
O	ⓘ Rutile	TiO₂
O	ⓘ Siderite	FeCO₃
O	ⓘ Stilpnomelane	(K,Ca,Na)(Fe,Mg,Al)₈(Si,Al)₁₂(O,OH)₃₆ · nH₂O
O	ⓘ Gypsum var. Selenite	CaSO₄ · 2H₂O
Na	Sodium
Na	ⓘ Stilpnomelane	(K,Ca,Na)(Fe,Mg,Al)₈(Si,Al)₁₂(O,OH)₃₆ · nH₂O
Mg	Magnesium
Mg	ⓘ Stilpnomelane	(K,Ca,Na)(Fe,Mg,Al)₈(Si,Al)₁₂(O,OH)₃₆ · nH₂O
Al	Aluminium
Al	ⓘ Stilpnomelane	(K,Ca,Na)(Fe,Mg,Al)₈(Si,Al)₁₂(O,OH)₃₆ · nH₂O
Si	Silicon
Si	ⓘ Grunerite	◻{Fe₂²⁺}{Fe₅²⁺}(Si₈O₂₂)(OH)₂
Si	ⓘ Stilpnomelane	(K,Ca,Na)(Fe,Mg,Al)₈(Si,Al)₁₂(O,OH)₃₆ · nH₂O
S	Sulfur
S	ⓘ Gypsum	CaSO₄ · 2H₂O
S	ⓘ Pyrite	FeS₂
S	ⓘ Gypsum var. Selenite	CaSO₄ · 2H₂O
K	Potassium
K	ⓘ Stilpnomelane	(K,Ca,Na)(Fe,Mg,Al)₈(Si,Al)₁₂(O,OH)₃₆ · nH₂O
Ca	Calcium
Ca	ⓘ Gypsum	CaSO₄ · 2H₂O
Ca	ⓘ Stilpnomelane	(K,Ca,Na)(Fe,Mg,Al)₈(Si,Al)₁₂(O,OH)₃₆ · nH₂O
Ca	ⓘ Gypsum var. Selenite	CaSO₄ · 2H₂O
Ti	Titanium
Ti	ⓘ Rutile	TiO₂
Fe	Iron
Fe	ⓘ Grunerite	◻{Fe₂²⁺}{Fe₅²⁺}(Si₈O₂₂)(OH)₂
Fe	ⓘ Hematite	Fe₂O₃
Fe	ⓘ Pyrite	FeS₂
Fe	ⓘ Siderite	FeCO₃
Fe	ⓘ Stilpnomelane	(K,Ca,Na)(Fe,Mg,Al)₈(Si,Al)₁₂(O,OH)₃₆ · nH₂O

Other Regions, Features and Areas containing this locality

North America PlateTectonic Plate

Superior DomainDomain

USA

Michigan
- Menominee Iron Range mining districtMining District

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

Lake Superior Iron Ore Association (1938) Lake Superior Iron Ores, 1938. Cleveland, Ohio. 364 pages.

Lake Superior Iron Ore Association (1952) Lake Superior Iron Ores: Mining Directory and Statistical Record of the Lake Superior Iron Ore District of the United States and Canada. Cleveland, Ohio. 334 pages.

Bayley, R.W. (1959) Geology of the Lake Mary Quadrangle Iron County, Michigan. United States Geological Survey Bulletin 1077: 40-44.

Cannon, W.F. (1999) Digital Geologic Map of the Penokean Continental Margin, Northern Michigan and Wisconsin. United States Geological Survey Open File Report (OFR) 99-547.

Bernhardt D.E. (2001) Men, Mines, and Memories: Iron Mining in Iron County, Michigan. Iron County Historical Museum, Caspian, Michigan.

Quick NavTop Commodities Mineral List Rock Types Other Regions References

版权所有© mindat.org1993年至2024年，除了规定的地方。 Mindat.org全赖于全球数千个以上成员和支持者们的参与。
隐私政策 - 条款和条款细则 - 联络我们 - Report a bug/vulnerability Current server date and time: 2024.4.16 21:03:01 Page updated: 2024.4.13 05:30:44

Go to top of page

Mansfield Mine, Crystal Falls, Iron County, Michigan, USAiRegional Level TypesMansfield MineMine Crystal Falls- not defined - Iron CountyCounty MichiganState USACountry function showexplain() { $("#locexplain").toggle(); if (typeof movemap === "function") movemap(); }

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

Other Regions, Features and Areas containing this locality

References

Mansfield Mine, Crystal Falls, Iron County, Michigan, USA i
Regional Level Types
Mansfield Mine Mine
Crystal Falls - not defined -
Iron County County
Michigan State
USA Country