Club	Location	Distance
Midwest Mineralological & Lapidary Society	Taylor, Michigan	11km
Roamin Club	Livonia, Michigan	19km
Michigan Mineralogical Society	Bloomfield Hills, Michigan	34km

Mindat Locality ID:

3837

Long-form identifier:

mindat:1:2:3837:2

GUID (UUID V4):

c57c47b9-8908-474e-8021-119e63e60abd

The Detroit Salt mine is located under the city of Detroit, a major city in the state of Michigan. It is currently owned by the Kissner Group and has two shafts, one that is 1160 feet and another that is 1400 feet.

The Detroit Salt and Manufacturing Company was founded in 1906, although halite was discovered on the site in 1895. Unfortunately, the company went bankrupt before it even had the chance of extracting the salt, due to the high cost of sinking the shaft.

After a reorganization in 1910 (Detroit Salt Company), the shaft was extended to 1060 feet under the city of Detroit and in 1912 the Watkins Salt Company purchased the mine and now the organization was called the Detroit Rock Salt Company. With the second reorganization the shaft was extended another 100 feet down to a second salt bed.

The Watkins Salt Company did not hold the mine for long, as its competitor, the International Salt Company, purchased the mine in 1914. The salt that was extracted was used primarily for the food processing and leather industries.

In 1922, a second shaft was drilled to meet the demand of more salt. This second shaft became the shaft that hauled the equipment down to the mine. Equipment was disassembled at the top and then reassembled at the bottom. This shaft is used today, while the first one is used to haul materials and labor.

International Salt closed the Detroit mine in 1983 and was purchased by Crystal Mines Inc. two years later in 1985. Another turnover to the Detroit Salt Company, LLC in 1997 saw the mine being reopened. In 2010, the Kissner Group purchased the Detroit Salt Company, LLC, and the two companies continued to operate the Detroit Mine until 2020, when it was purchased by Stone Canyon Industries Holdings, LLC.

Today the mine is currently active. The salt is used mostly for deicing roads in the Great Lakes region.

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.

ⓘ Salt

Mineral List

14 valid minerals.

Detailed Mineral List:

ⓘ Anhydrite

Formula: CaSO₄

Description: Occurs in a bedded halite deposit

References:

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

ⓘ Calcite

Formula: CaCO₃

References:

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

ⓘ Carnallite

Formula: KMgCl₃ · 6H₂O

Description: Occurs in a bedded halite deposit

References:

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

ⓘ Celestine

Formula: SrSO₄

Description: Occurs in a bedded halite deposit

References:

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

ⓘ Dolomite

Formula: CaMg(CO₃)₂

Description: Occurs in a bedded halite deposit

References:

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

ⓘ Epsomite

Formula: MgSO₄ · 7H₂O

References:

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

ⓘ Fluorite

Formula: CaF₂

References:

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

ⓘ Gypsum

Formula: CaSO₄ · 2H₂O

Description: Occurs in a bedded halite deposit

References:

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

ⓘ Halite

Formula: NaCl

References:

Rocks & Min.: 22: 1011.

ⓘ Hematite

Formula: Fe₂O₃

References:

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

ⓘ Polyhalite

Formula: K₂Ca₂Mg(SO₄)₄ · 2H₂O

Description: Occurs in a bedded halite deposit

References:

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

ⓘ Pyrite

Formula: FeS₂

Description: Occurs in a bedded halite deposit

References:

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

ⓘ Quartz

Formula: SiO₂

Description: Occurs in a bedded halite deposit

References:

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

ⓘ Sulphur

Formula: S₈

References:

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

Gallery:

NaClⓘ Halite

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
ⓘ	Sulphur	1.CC.05	S₈
Group 2 - Sulphides and Sulfosalts
ⓘ	Pyrite	2.EB.05a	FeS₂
Group 3 - Halides
ⓘ	Halite	3.AA.20	NaCl
ⓘ	Fluorite	3.AB.25	CaF₂
ⓘ	Carnallite	3.BA.10	KMgCl₃ · 6H₂O
Group 4 - Oxides and Hydroxides
ⓘ	Hematite	4.CB.05	Fe₂O₃
ⓘ	Quartz	4.DA.05	SiO₂
Group 5 - Nitrates and Carbonates
ⓘ	Calcite	5.AB.05	CaCO₃
ⓘ	Dolomite	5.AB.10	CaMg(CO₃)₂
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
ⓘ	Anhydrite	7.AD.30	CaSO₄
ⓘ	Celestine	7.AD.35	SrSO₄
ⓘ	Epsomite	7.CB.40	MgSO₄ · 7H₂O
ⓘ	Polyhalite	7.CC.65	K₂Ca₂Mg(SO₄)₄ · 2H₂O
ⓘ	Gypsum	7.CD.40	CaSO₄ · 2H₂O

List of minerals for each chemical element

H	Hydrogen
H	ⓘ Carnallite	KMgCl₃ · 6H₂O
H	ⓘ Epsomite	MgSO₄ · 7H₂O
H	ⓘ Gypsum	CaSO₄ · 2H₂O
H	ⓘ Polyhalite	K₂Ca₂Mg(SO₄)₄ · 2H₂O
C	Carbon
C	ⓘ Calcite	CaCO₃
C	ⓘ Dolomite	CaMg(CO₃)₂
O	Oxygen
O	ⓘ Anhydrite	CaSO₄
O	ⓘ Calcite	CaCO₃
O	ⓘ Carnallite	KMgCl₃ · 6H₂O
O	ⓘ Celestine	SrSO₄
O	ⓘ Dolomite	CaMg(CO₃)₂
O	ⓘ Epsomite	MgSO₄ · 7H₂O
O	ⓘ Gypsum	CaSO₄ · 2H₂O
O	ⓘ Hematite	Fe₂O₃
O	ⓘ Polyhalite	K₂Ca₂Mg(SO₄)₄ · 2H₂O
O	ⓘ Quartz	SiO₂
F	Fluorine
F	ⓘ Fluorite	CaF₂
Na	Sodium
Na	ⓘ Halite	NaCl
Mg	Magnesium
Mg	ⓘ Carnallite	KMgCl₃ · 6H₂O
Mg	ⓘ Dolomite	CaMg(CO₃)₂
Mg	ⓘ Epsomite	MgSO₄ · 7H₂O
Mg	ⓘ Polyhalite	K₂Ca₂Mg(SO₄)₄ · 2H₂O
Si	Silicon
Si	ⓘ Quartz	SiO₂
S	Sulfur
S	ⓘ Anhydrite	CaSO₄
S	ⓘ Celestine	SrSO₄
S	ⓘ Epsomite	MgSO₄ · 7H₂O
S	ⓘ Gypsum	CaSO₄ · 2H₂O
S	ⓘ Polyhalite	K₂Ca₂Mg(SO₄)₄ · 2H₂O
S	ⓘ Pyrite	FeS₂
S	ⓘ Sulphur	S₈
Cl	Chlorine
Cl	ⓘ Carnallite	KMgCl₃ · 6H₂O
Cl	ⓘ Halite	NaCl
K	Potassium
K	ⓘ Carnallite	KMgCl₃ · 6H₂O
K	ⓘ Polyhalite	K₂Ca₂Mg(SO₄)₄ · 2H₂O
Ca	Calcium
Ca	ⓘ Anhydrite	CaSO₄
Ca	ⓘ Calcite	CaCO₃
Ca	ⓘ Dolomite	CaMg(CO₃)₂
Ca	ⓘ Fluorite	CaF₂
Ca	ⓘ Gypsum	CaSO₄ · 2H₂O
Ca	ⓘ Polyhalite	K₂Ca₂Mg(SO₄)₄ · 2H₂O
Fe	Iron
Fe	ⓘ Hematite	Fe₂O₃
Fe	ⓘ Pyrite	FeS₂
Sr	Strontium
Sr	ⓘ Celestine	SrSO₄

Other Regions, Features and Areas containing this locality

North America PlateTectonic Plate

Michigan BasinBasin
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.

References

Zodac, P. (1947) A Trip to Detroit. Rocks & Minerals: 22(11): 1011.

www.detroitsalt.com (n.d.) http://www.detroitsalt.com

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

www.usgs.gov (n.d.) https://www.usgs.gov/centers/nmic/salt-statistics-and-information

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