The Ashbed Mining Company organized in 1880 to work the old Petherick Mining properties to see if the Ashbed Lode could be mined further. The property contained two adits which were worked between 1880 and 1882 and almost 99,000 pounds of copper were removed. Work resumed in 1899 and several tons of masses were removed. More exploratory work was conducted in 1900 when a large mass of copper was recovered, but work was again halted because of the hit and miss nature of the Ashbed. In 1905, a new inclined shaft was started and drifting continued until 1907, when the mining operation was closed for good. Some of the minerals that can be found include copper, analcime, and datolite crystals with copper inclusions.

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.

ⓘ Copper

Mineral List

ⓘ 'Thomsonite Subgroup'

5 valid minerals.

Detailed Mineral List:

ⓘ Analcime

Formula: Na(AlSi₂O₆) · H₂O

References:

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

ⓘ Datolite

Formula: CaB(SiO₄)(OH)

References:

Dana 6:505.

Morris Jr., T. (1983) Michigan Mineralogy: A Locality Index. Rocks & Minerals: 58(3): 111.

ⓘ 'K Feldspar'

References:

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

ⓘ 'K Feldspar var. Adularia'

Formula: KAlSi₃O₈

References:

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

ⓘ Manganite

Formula: Mn³⁺O(OH)

References:

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

ⓘ Mesolite

Formula: Na₂Ca₂Si₉Al₆O₃₀ · 8H₂O

References:

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

ⓘ Natrolite

Formula: Na₂Al₂Si₃O₁₀ · 2H₂O

References:

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

ⓘ 'Thomsonite Subgroup'

References:

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

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
ⓘ	Manganite	4.FD.15	Mn³⁺O(OH)
Group 9 - Silicates
ⓘ	Datolite	9.AJ.20	CaB(SiO₄)(OH)
ⓘ	Mesolite	9.GA.05	Na₂Ca₂Si₉Al₆O₃₀ · 8H₂O
ⓘ	Natrolite	9.GA.05	Na₂Al₂Si₃O₁₀ · 2H₂O
ⓘ	Analcime	9.GB.05	Na(AlSi₂O₆) · H₂O
Unclassified
ⓘ	'K Feldspar var. Adularia'	-	KAlSi₃O₈
ⓘ	''	-
ⓘ	'Thomsonite Subgroup'	-

List of minerals for each chemical element

H	Hydrogen
H	ⓘ Analcime	Na(AlSi₂O₆) · H₂O
H	ⓘ Datolite	CaB(SiO₄)(OH)
H	ⓘ Manganite	Mn³⁺O(OH)
H	ⓘ Mesolite	Na₂Ca₂Si₉Al₆O₃₀ · 8H₂O
H	ⓘ Natrolite	Na₂Al₂Si₃O₁₀ · 2H₂O
B	Boron
B	ⓘ Datolite	CaB(SiO₄)(OH)
O	Oxygen
O	ⓘ K Feldspar var. Adularia	KAlSi₃O₈
O	ⓘ Analcime	Na(AlSi₂O₆) · H₂O
O	ⓘ Datolite	CaB(SiO₄)(OH)
O	ⓘ Manganite	Mn³⁺O(OH)
O	ⓘ Mesolite	Na₂Ca₂Si₉Al₆O₃₀ · 8H₂O
O	ⓘ Natrolite	Na₂Al₂Si₃O₁₀ · 2H₂O
Na	Sodium
Na	ⓘ Analcime	Na(AlSi₂O₆) · H₂O
Na	ⓘ Mesolite	Na₂Ca₂Si₉Al₆O₃₀ · 8H₂O
Na	ⓘ Natrolite	Na₂Al₂Si₃O₁₀ · 2H₂O
Al	Aluminium
Al	ⓘ K Feldspar var. Adularia	KAlSi₃O₈
Al	ⓘ Analcime	Na(AlSi₂O₆) · H₂O
Al	ⓘ Mesolite	Na₂Ca₂Si₉Al₆O₃₀ · 8H₂O
Al	ⓘ Natrolite	Na₂Al₂Si₃O₁₀ · 2H₂O
Si	Silicon
Si	ⓘ K Feldspar var. Adularia	KAlSi₃O₈
Si	ⓘ Analcime	Na(AlSi₂O₆) · H₂O
Si	ⓘ Datolite	CaB(SiO₄)(OH)
Si	ⓘ Mesolite	Na₂Ca₂Si₉Al₆O₃₀ · 8H₂O
Si	ⓘ Natrolite	Na₂Al₂Si₃O₁₀ · 2H₂O
K	Potassium
K	ⓘ K Feldspar var. Adularia	KAlSi₃O₈
Ca	Calcium
Ca	ⓘ Datolite	CaB(SiO₄)(OH)
Ca	ⓘ Mesolite	Na₂Ca₂Si₉Al₆O₃₀ · 8H₂O
Mn	Manganese
Mn	ⓘ Manganite	Mn³⁺O(OH)

Other Regions, Features and Areas containing this locality

North America PlateTectonic Plate

Mid-continent DomainDomain

USA

Michigan
- Keweenaw PeninsulaPeninsula
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

Dana 6: 505.

Butler, B.S., Burbank, W.S. (1929) The Copper Deposits of Michigan. U.S. Geological Survey. Professional Paper 144. 238 pp.

Clarke, D.H. (1974) Copper Mines of Michigan; Copper Falls Mining Co., No. 6, 36 pp.

Morris Jr., T. (1983) Michigan Mineralogy: A Locality Index. Rocks & Minerals: 58(3): 111.

Kaminski-Hamka, T. (2011) The Copper Mines of Keweenaw County, Michigan. Copperlady Press. 150 pages.

DeGood, L. (2011) Michigan Copper Mining Stocks and Bonds. 401 pages.

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