Worked from late 1700's to 1925 principally for copper then later for tin and arsenic as at Devon Great Consols. The site was extended in the 1880's with the sinking of Bennetts shaft (SX510792) when the name changed to Devon Friendship. The stack at Brentons shaft was demolished by the TA in 1954 apparently causing damage to surrounding houses. Ref.: (in part): Rocks & Min.: 16:129.
Ref: Richardson P.H.G. (1991) Mines of Dartmoor & the Taymar Valley after 1913, Devon Books, Tiverton.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List

19 valid minerals.

Detailed Mineral List:

ⓘ Anglesite

Formula: PbSO₄

ⓘ Arsenopyrite

Formula: FeAsS

ⓘ Brochantite

Formula: Cu₄(SO₄)(OH)₆

ⓘ Calcite

Formula: CaCO₃

References:

Rocks & Min.: 16:129.

ⓘ Cassiterite

Formula: SnO₂

References:

Henwood, William Jory (1843) On the Metalliferous Deposits of Cornwall and Devon. Transactions of the Royal Geological Society of Cornwall, 5. 1-386

ⓘ Cerussite

Formula: PbCO₃

ⓘ Chalcopyrite

Formula: CuFeS₂

References:

Henwood, William Jory (1843) On the Metalliferous Deposits of Cornwall and Devon. Transactions of the Royal Geological Society of Cornwall, 5. 1-386

Smyth, W.M., Reeks, T., and Rudler, F.W. (1864): A Catalogue of the Mineral Collections in the Museum of Practical Geology. HMSO Publications (London), 190pp.

ⓘ 'Chlorite Group'

References:

Henwood, William Jory (1843) On the Metalliferous Deposits of Cornwall and Devon. Transactions of the Royal Geological Society of Cornwall, 5. 1-386

Rudler, F. W. (1905) A Handbook to a Collection of the Minerals of the British Isles - Mostly selected from the Ludlam Collection, in the Museum of Practical Geology. 253pp.

ⓘ Devilline

Formula: CaCu₄(SO₄)₂(OH)₆ · 3H₂O

ⓘ Galena

Formula: PbS

References:

Henwood, William Jory (1843) On the Metalliferous Deposits of Cornwall and Devon. Transactions of the Royal Geological Society of Cornwall, 5. 1-386

ⓘ Gypsum

Formula: CaSO₄ · 2H₂O

ⓘ Jarosite

Formula: KFe³⁺₃(SO₄)₂(OH)₆

ⓘ Langite

Formula: Cu₄(SO₄)(OH)₆ · 2H₂O

ⓘ Linarite

Formula: PbCu(SO₄)(OH)₂

ⓘ Malachite

Formula: Cu₂(CO₃)(OH)₂

ⓘ Pyrite

Formula: FeS₂

References:

Henwood, William Jory (1843) On the Metalliferous Deposits of Cornwall and Devon. Transactions of the Royal Geological Society of Cornwall, 5. 1-386

ⓘ Quartz

Formula: SiO₂

References:

Henwood, William Jory (1843) On the Metalliferous Deposits of Cornwall and Devon. Transactions of the Royal Geological Society of Cornwall, 5. 1-386

ⓘ Scheelite

Formula: Ca(WO₄)

References:

Henwood, William Jory (1843) On the Metalliferous Deposits of Cornwall and Devon. Transactions of the Royal Geological Society of Cornwall, 5. 1-386

Rudler, F. W. (1905) A Handbook to a Collection of the Minerals of the British Isles - Mostly selected from the Ludlam Collection, in the Museum of Practical Geology. 253pp.

ⓘ Serpierite

Formula: Ca(Cu,Zn)₄(SO₄)₂(OH)₆ · 3H₂O

ⓘ Wroewolfeite

Formula: Cu₄(SO₄)(OH)₆ · 2H₂O

References:

Braithwaite, Richard S.W. (1982) Wroewolfeite in Britain. The Mineralogical Record, 13 (3) 167-174pp.168-169

Gallery:

PbSⓘ Galena

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
ⓘ	Chalcopyrite	2.CB.10a	CuFeS₂
ⓘ	Galena	2.CD.10	PbS
ⓘ	Pyrite	2.EB.05a	FeS₂
ⓘ	Arsenopyrite	2.EB.20	FeAsS
Group 4 - Oxides and Hydroxides
ⓘ	Quartz	4.DA.05	SiO₂
ⓘ	Cassiterite	4.DB.05	SnO₂
Group 5 - Nitrates and Carbonates
ⓘ	Calcite	5.AB.05	CaCO₃
ⓘ	Cerussite	5.AB.15	PbCO₃
ⓘ	Malachite	5.BA.10	Cu₂(CO₃)(OH)₂
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
ⓘ	Anglesite	7.AD.35	PbSO₄
ⓘ	Brochantite	7.BB.25	Cu₄(SO₄)(OH)₆
ⓘ	Jarosite	7.BC.10	KFe³⁺₃(SO₄)₂(OH)₆
ⓘ	Linarite	7.BC.65	PbCu(SO₄)(OH)₂
ⓘ	Gypsum	7.CD.40	CaSO₄ · 2H₂O
ⓘ	Langite	7.DD.10	Cu₄(SO₄)(OH)₆ · 2H₂O
ⓘ	Wroewolfeite	7.DD.10	Cu₄(SO₄)(OH)₆ · 2H₂O
ⓘ	Devilline	7.DD.30	CaCu₄(SO₄)₂(OH)₆ · 3H₂O
ⓘ	Serpierite	7.DD.30	Ca(Cu,Zn)₄(SO₄)₂(OH)₆ · 3H₂O
ⓘ	Scheelite	7.GA.05	Ca(WO₄)
Unclassified
ⓘ	'Chlorite Group'	-

List of minerals for each chemical element

H	Hydrogen
H	ⓘ Brochantite	Cu₄(SO₄)(OH)₆
H	ⓘ Devilline	CaCu₄(SO₄)₂(OH)₆ · 3H₂O
H	ⓘ Gypsum	CaSO₄ · 2H₂O
H	ⓘ Jarosite	KFe₃³⁺(SO₄)₂(OH)₆
H	ⓘ Langite	Cu₄(SO₄)(OH)₆ · 2H₂O
H	ⓘ Linarite	PbCu(SO₄)(OH)₂
H	ⓘ Malachite	Cu₂(CO₃)(OH)₂
H	ⓘ Serpierite	Ca(Cu,Zn)₄(SO₄)₂(OH)₆ · 3H₂O
H	ⓘ Wroewolfeite	Cu₄(SO₄)(OH)₆ · 2H₂O
C	Carbon
C	ⓘ Calcite	CaCO₃
C	ⓘ Cerussite	PbCO₃
C	ⓘ Malachite	Cu₂(CO₃)(OH)₂
O	Oxygen
O	ⓘ Anglesite	PbSO₄
O	ⓘ Brochantite	Cu₄(SO₄)(OH)₆
O	ⓘ Calcite	CaCO₃
O	ⓘ Cassiterite	SnO₂
O	ⓘ Cerussite	PbCO₃
O	ⓘ Devilline	CaCu₄(SO₄)₂(OH)₆ · 3H₂O
O	ⓘ Gypsum	CaSO₄ · 2H₂O
O	ⓘ Jarosite	KFe₃³⁺(SO₄)₂(OH)₆
O	ⓘ Langite	Cu₄(SO₄)(OH)₆ · 2H₂O
O	ⓘ Linarite	PbCu(SO₄)(OH)₂
O	ⓘ Malachite	Cu₂(CO₃)(OH)₂
O	ⓘ Quartz	SiO₂
O	ⓘ Scheelite	Ca(WO₄)
O	ⓘ Serpierite	Ca(Cu,Zn)₄(SO₄)₂(OH)₆ · 3H₂O
O	ⓘ Wroewolfeite	Cu₄(SO₄)(OH)₆ · 2H₂O
Si	Silicon
Si	ⓘ Quartz	SiO₂
S	Sulfur
S	ⓘ Anglesite	PbSO₄
S	ⓘ Arsenopyrite	FeAsS
S	ⓘ Brochantite	Cu₄(SO₄)(OH)₆
S	ⓘ Chalcopyrite	CuFeS₂
S	ⓘ Devilline	CaCu₄(SO₄)₂(OH)₆ · 3H₂O
S	ⓘ Galena	PbS
S	ⓘ Gypsum	CaSO₄ · 2H₂O
S	ⓘ Jarosite	KFe₃³⁺(SO₄)₂(OH)₆
S	ⓘ Langite	Cu₄(SO₄)(OH)₆ · 2H₂O
S	ⓘ Linarite	PbCu(SO₄)(OH)₂
S	ⓘ Pyrite	FeS₂
S	ⓘ Serpierite	Ca(Cu,Zn)₄(SO₄)₂(OH)₆ · 3H₂O
S	ⓘ Wroewolfeite	Cu₄(SO₄)(OH)₆ · 2H₂O
K	Potassium
K	ⓘ Jarosite	KFe₃³⁺(SO₄)₂(OH)₆
Ca	Calcium
Ca	ⓘ Calcite	CaCO₃
Ca	ⓘ Devilline	CaCu₄(SO₄)₂(OH)₆ · 3H₂O
Ca	ⓘ Gypsum	CaSO₄ · 2H₂O
Ca	ⓘ Scheelite	Ca(WO₄)
Ca	ⓘ Serpierite	Ca(Cu,Zn)₄(SO₄)₂(OH)₆ · 3H₂O
Fe	Iron
Fe	ⓘ Arsenopyrite	FeAsS
Fe	ⓘ Chalcopyrite	CuFeS₂
Fe	ⓘ Jarosite	KFe₃³⁺(SO₄)₂(OH)₆
Fe	ⓘ Pyrite	FeS₂
Cu	Copper
Cu	ⓘ Brochantite	Cu₄(SO₄)(OH)₆
Cu	ⓘ Chalcopyrite	CuFeS₂
Cu	ⓘ Devilline	CaCu₄(SO₄)₂(OH)₆ · 3H₂O
Cu	ⓘ Langite	Cu₄(SO₄)(OH)₆ · 2H₂O
Cu	ⓘ Linarite	PbCu(SO₄)(OH)₂
Cu	ⓘ Malachite	Cu₂(CO₃)(OH)₂
Cu	ⓘ Serpierite	Ca(Cu,Zn)₄(SO₄)₂(OH)₆ · 3H₂O
Cu	ⓘ Wroewolfeite	Cu₄(SO₄)(OH)₆ · 2H₂O
Zn	Zinc
Zn	ⓘ Serpierite	Ca(Cu,Zn)₄(SO₄)₂(OH)₆ · 3H₂O
As	Arsenic
As	ⓘ Arsenopyrite	FeAsS
Sn	Tin
Sn	ⓘ Cassiterite	SnO₂
W	Tungsten
W	ⓘ Scheelite	Ca(WO₄)
Pb	Lead
Pb	ⓘ Anglesite	PbSO₄
Pb	ⓘ Cerussite	PbCO₃
Pb	ⓘ Galena	PbS
Pb	ⓘ Linarite	PbCu(SO₄)(OH)₂

Other Regions, Features and Areas containing this locality

British and Irish IslesGroup of Islands

Eurasian PlateTectonic Plate

EuropeContinent

England
- Callington and Tavistock Mining DistrictMining District
- Devon
  - DartmoorNational Park
- Devon and Cornwall metalliferous mining districtMining District

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References

Braithwaite, Richard S.W. (1982) Wroewolfeite in Britain. The Mineralogical Record, 13 (3) 167-174

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Wheal Friendship, Mary Tavy, West Devon, Devon, England, UKiRegional Level TypesWheal FriendshipMine Mary TavyCivil Parish West DevonBorough DevonCounty EnglandConstituent Country UKCountry function showexplain() { $("#locexplain").toggle(); if (typeof movemap === "function") movemap(); }

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Mineral List

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

Wheal Friendship, Mary Tavy, West Devon, Devon, England, UK i
Regional Level Types
Wheal Friendship Mine
Mary Tavy Civil Parish
West Devon Borough
Devon County
England Constituent Country
UK Country