A former Fe-Cu mine located in the Val Punteglias near to the Alp da Punteglias, 3 km NNW of Trun.

The mine comprised about 8 adits, 3 on the W (Platta cotschna at approx N46.76574 E8.96737, Swiss grid 716770 180533) and 5 on the E (Cavestrau at approx N46.76636 E8.97071) of the stream Ferrara (foundry). The adit entrances are still visible and in 1990 they were partly accessible. The foundations of a Knappenhaus (miner’s lodging) are also visible. Furnace and foundry were near Trun.

The first record dates from 1472 and thereabouts the first furnace was constructed in the valley. In the beginning the mining rights were owned by the abbey of Disentis (Mustèr) and later by the borough of Trun. Till 1848 a number of entrepreneurs operated the mine with long idle periods. None had any commercial success. In 1818 Pater Placidus a Spescha convinced some investors to revive the mine and to install a new furnace and a foundry, but in 1848 everything was coming to an end. The last operator of the mine was contractually obliged to bring some other industry to Trun if the mine failed. The mine failed and the operator established a wool and clothing enterprise (Trun AG) which flourished till its closing in 2001.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List

14 valid minerals.

Detailed Mineral List:

ⓘ 'Apatite'

Formula: Ca₅(PO₄)₃(Cl/F/OH)

Reference: Friedländer, C. (1930): Erzvorkommnisse des Bündner Oberlandes und ihre Begleitgesteine. In: Beiträge zur Geologie der Schweiz. Geotechnische Serie, XVI. Lieferung Heft 1. p. 2 – 16.

ⓘ Azurite

Formula: Cu₃(CO₃)₂(OH)₂

Reference: Krähenbühl, H. (1985): Der Bergbau von Puntaiglas ob Trun. In: Bergknappe No 34, 4/1985.

ⓘ 'Biotite'

Formula: K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂ or Simplified: K(Mg,Fe)₃AlSi₃O₁₀(OH)₂

Formula: Cu₅FeS₄

Formula: Cu₂S

Formula: CuFeS₂

Formula: (CaCa)(AlAlAl)O[Si₂O₇][SiO₄](OH)

ⓘ Covellite

Formula: CuS

ⓘ Epidote

Formula: (CaCa)(AlAlFe³⁺)O[Si₂O₇][SiO₄](OH)

ⓘ Hematite

Formula: Fe₂O₃

ⓘ 'Limonite'

Reference: Krähenbühl, H. (1985): Der Bergbau von Puntaiglas ob Trun. In: Bergknappe No 34, 4/1985.

ⓘ Magnetite

Formula: Fe²⁺Fe³⁺₂O₄

ⓘ Muscovite

Formula: KAl₂(AlSi₃O₁₀)(OH)₂

ⓘ Muscovite var. Sericite

Formula: KAl₂(AlSi₃O₁₀)(OH)₂

ⓘ Pyrite

Formula: FeS₂

ⓘ Pyrrhotite

Formula: Fe_1-xS

ⓘ Titanite

Formula: CaTi(SiO₄)O

ⓘ Zircon

Formula: Zr(SiO₄)

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
ⓘ	Bornite	2.BA.15	Cu₅FeS₄
ⓘ	Chalcocite	2.BA.05	Cu₂S
ⓘ	Chalcopyrite	2.CB.10a	CuFeS₂
ⓘ	Covellite	2.CA.05a	CuS
ⓘ	Pyrite	2.EB.05a	FeS₂
ⓘ	Pyrrhotite	2.CC.10	Fe_1-xS
Group 4 - Oxides and Hydroxides
ⓘ	Hematite	4.CB.05	Fe₂O₃
ⓘ	Magnetite	4.BB.05	Fe²⁺Fe³⁺₂O₄
Group 5 - Nitrates and Carbonates
ⓘ	Azurite	5.BA.05	Cu₃(CO₃)₂(OH)₂
Group 9 - Silicates
ⓘ	Clinozoisite	9.BG.05a	(CaCa)(AlAlAl)O[Si₂O₇][SiO₄](OH)
ⓘ	Epidote	9.BG.05a	(CaCa)(AlAlFe³⁺)O[Si₂O₇][SiO₄](OH)
ⓘ	Muscovite	9.EC.15	KAl₂(AlSi₃O₁₀)(OH)₂
ⓘ	var. Sericite	9.EC.15	KAl₂(AlSi₃O₁₀)(OH)₂
ⓘ	Titanite	9.AG.15	CaTi(SiO₄)O
ⓘ	Zircon	9.AD.30	Zr(SiO₄)
Unclassified Minerals, Rocks, etc.
ⓘ	'Apatite'	-	Ca₅(PO₄)₃(Cl/F/OH)
ⓘ	'Biotite'	-	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂ or Simplified: K(Mg,Fe)₃AlSi₃O₁₀(OH)₂
ⓘ	'Limonite'	-

List of minerals for each chemical element

H	Hydrogen
H	ⓘ Clinozoisite	(CaCa)(AlAlAl)O[Si₂O₇][SiO₄](OH)
H	ⓘ Epidote	(CaCa)(AlAlFe³⁺)O[Si₂O₇][SiO₄](OH)
H	ⓘ Muscovite var. Sericite	KAl₂(AlSi₃O₁₀)(OH)₂
H	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂ or Simplified: K(Mg,Fe)₃AlSi₃O₁₀(OH)₂
H	ⓘ Apatite	Ca₅(PO₄)₃(Cl/F/OH)
H	ⓘ Azurite	Cu₃(CO₃)₂(OH)₂
H	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
C	Carbon
C	ⓘ Azurite	Cu₃(CO₃)₂(OH)₂
O	Oxygen
O	ⓘ Magnetite	Fe²⁺Fe₂³⁺O₄
O	ⓘ Hematite	Fe₂O₃
O	ⓘ Clinozoisite	(CaCa)(AlAlAl)O[Si₂O₇][SiO₄](OH)
O	ⓘ Epidote	(CaCa)(AlAlFe³⁺)O[Si₂O₇][SiO₄](OH)
O	ⓘ Muscovite var. Sericite	KAl₂(AlSi₃O₁₀)(OH)₂
O	ⓘ Zircon	Zr(SiO₄)
O	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂ or Simplified: K(Mg,Fe)₃AlSi₃O₁₀(OH)₂
O	ⓘ Apatite	Ca₅(PO₄)₃(Cl/F/OH)
O	ⓘ Titanite	CaTi(SiO₄)O
O	ⓘ Azurite	Cu₃(CO₃)₂(OH)₂
O	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
F	Fluorine
F	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂ or Simplified: K(Mg,Fe)₃AlSi₃O₁₀(OH)₂
F	ⓘ Apatite	Ca₅(PO₄)₃(Cl/F/OH)
Mg	Magnesium
Mg	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂ or Simplified: K(Mg,Fe)₃AlSi₃O₁₀(OH)₂
Al	Aluminium
Al	ⓘ Clinozoisite	(CaCa)(AlAlAl)O[Si₂O₇][SiO₄](OH)
Al	ⓘ Epidote	(CaCa)(AlAlFe³⁺)O[Si₂O₇][SiO₄](OH)
Al	ⓘ Muscovite var. Sericite	KAl₂(AlSi₃O₁₀)(OH)₂
Al	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂ or Simplified: K(Mg,Fe)₃AlSi₃O₁₀(OH)₂
Al	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
Si	Silicon
Si	ⓘ Clinozoisite	(CaCa)(AlAlAl)O[Si₂O₇][SiO₄](OH)
Si	ⓘ Epidote	(CaCa)(AlAlFe³⁺)O[Si₂O₇][SiO₄](OH)
Si	ⓘ Muscovite var. Sericite	KAl₂(AlSi₃O₁₀)(OH)₂
Si	ⓘ Zircon	Zr(SiO₄)
Si	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂ or Simplified: K(Mg,Fe)₃AlSi₃O₁₀(OH)₂
Si	ⓘ Titanite	CaTi(SiO₄)O
Si	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
P	Phosphorus
P	ⓘ Apatite	Ca₅(PO₄)₃(Cl/F/OH)
S	Sulfur
S	ⓘ Pyrite	FeS₂
S	ⓘ Chalcopyrite	CuFeS₂
S	ⓘ Pyrrhotite	Fe_1-xS
S	ⓘ Bornite	Cu₅FeS₄
S	ⓘ Chalcocite	Cu₂S
S	ⓘ Covellite	CuS
Cl	Chlorine
Cl	ⓘ Apatite	Ca₅(PO₄)₃(Cl/F/OH)
K	Potassium
K	ⓘ Muscovite var. Sericite	KAl₂(AlSi₃O₁₀)(OH)₂
K	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂ or Simplified: K(Mg,Fe)₃AlSi₃O₁₀(OH)₂
K	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
Ca	Calcium
Ca	ⓘ Clinozoisite	(CaCa)(AlAlAl)O[Si₂O₇][SiO₄](OH)
Ca	ⓘ Epidote	(CaCa)(AlAlFe³⁺)O[Si₂O₇][SiO₄](OH)
Ca	ⓘ Apatite	Ca₅(PO₄)₃(Cl/F/OH)
Ca	ⓘ Titanite	CaTi(SiO₄)O
Ti	Titanium
Ti	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂ or Simplified: K(Mg,Fe)₃AlSi₃O₁₀(OH)₂
Ti	ⓘ Titanite	CaTi(SiO₄)O
Fe	Iron
Fe	ⓘ Magnetite	Fe²⁺Fe₂³⁺O₄
Fe	ⓘ Pyrite	FeS₂
Fe	ⓘ Chalcopyrite	CuFeS₂
Fe	ⓘ Hematite	Fe₂O₃
Fe	ⓘ Pyrrhotite	Fe_1-xS
Fe	ⓘ Bornite	Cu₅FeS₄
Fe	ⓘ Epidote	(CaCa)(AlAlFe³⁺)O[Si₂O₇][SiO₄](OH)
Fe	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂ or Simplified: K(Mg,Fe)₃AlSi₃O₁₀(OH)₂
Cu	Copper
Cu	ⓘ Chalcopyrite	CuFeS₂
Cu	ⓘ Bornite	Cu₅FeS₄
Cu	ⓘ Chalcocite	Cu₂S
Cu	ⓘ Covellite	CuS
Cu	ⓘ Azurite	Cu₃(CO₃)₂(OH)₂
Zr	Zirconium
Zr	ⓘ Zircon	Zr(SiO₄)

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)

Pater Placidus a Spescha (1818): Dissertazium sur l’invenzium dils minerals de Punteglias.

Heim, A. (1878): Untersuchungen über den Mechanismus der Gebirgsbildung im Anschluss an die geologische Monographie der Tödi-Windgällen-Gruppe.

Boder-Beder, A. (1897): Die Erzlagerstätten der Alp Puntaiglas im Bündner Oberland und ihre Felsarten. In: Neues Jahrbuch, Mineral. Geol. B.B. XI.

Vincenz, P. (1898): Las Minieras a Trun. Igl Ischi, II. Mustèr.

Schmidt, C. (1917): Erläuterungen der Karte der Fundorte von mineralischen Rohstoffen in der Schweiz, mit Karte.

Friedländer, C. (1930): Erzvorkommnisse des Bündner Oberlandes und ihre Begleitgesteine. In: Beiträge zur Geologie der Schweiz. Geotechnische Serie, XVI. Lieferung Heft 1. p. 2 – 16.

Kündig, E. und de Quervain, F. (1953): Fundstellen mineralischer Rohstoffe der Schweiz. Schweizerische Geotechnische Kommission. p.111.

Boesch, H. und Schib, K. (1961): Beiträge zur Geschichte der schweizerischen Eisengiessereien. In: Schweizerische Zeitschrift für Geschichte, Band 11, 1961, Heft 3.

Küpfer, Th. (1974): Zur Geologie und Petrographie der nördlichen Val Punteglias. Liz. Universität Bern.

Seemann, U. (1974): Mineralogisch-petrographische und geochemische Untersuchungen der granitischen Gesteine der Val Punteglias (GR). Diss. Universität Bern.

Loose, R. (1979): Das Eisenhüttenwerk und der Eisenerzabbau von Trun um 1823/27. In: Bündner Monatsblatt 1979.

Fravi, P. (1985): Die Bergwerke von Punteglias oberhalb Trun und Pater Placidus Spescha. In: Bergknappe No 34, 4/1985.

Krähenbühl, H. (1985): Der Bergbau von Puntaiglas ob Trun. In: Bergknappe No 34, 4/1985.

Schüpbach, Th. (1990): Quarz und Epidot aus dem Val Punteglias. In: Schweizer Strahler No. 8, p. 363 – 365.

Weibel, M. et al (1990): Die Mineralien der Schweiz.

Brunold, U. (1994): Gewerbliche Migration im Alpenraum.

Möbus, G. (1997): Geologie der Alpen: eine Einführung in die regional-geologischen Einheiten zwischen Genf und Wien.

Stalder, H. A. et al (1998): Mineralienlexikon der Schweiz 1998.

Verein für Bündner Kulturforschung (2000): Handbuch der Bündner Geschichte, Band 2.

Krähenbühl, H. (2001): Schweizer Absolventen der Bergakademie Freiberg als Bergbauingenieure in Graubünden: Heinrich Schopfer. In: Bergknappe No 96, 2/2001.

External Links

http://www.silberberg-davos.ch/PDF_BK/BK_34.pdf (Bergknappe No 34)

http://www.silberberg-davos.ch/PDF_BK/BK_96.pdf (Bergknappe No 96)

Other Regions, Features and Areas containing this locality

Eurasian PlateTectonic Plate

EuropeContinent

The AlpsMountain Range

Switzerland

Grisons
- Val PuntegliasValley

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