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Pra' Piazzo (Prapiazzo), Introbio, Lecco Province, Lombardy, Italyi
Regional Level Types
Pra' Piazzo (Prapiazzo)- not defined -
IntrobioCommune
Lecco ProvinceProvince
LombardyRegion
ItalyCountry

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Key
Latitude & Longitude (WGS84):
45° 58' 2'' North , 9° 26' 12'' East
Latitude & Longitude (decimal):
Köppen climate type:
Nearest Settlements:
PlacePopulationDistance
Introbio1,954 (2014)1.3km
Pasturo1,911 (2014)1.8km
Primaluna2,124 (2014)1.8km
Barzio1,293 (2014)3.5km
Cremeno663 (2014)4.5km
Name(s) in local language(s):
Pra' Piazzo (Prapiazzo), Introbio, Valsassina, Lecco, Lombardia, Italia


Silver bearing mineralization hosted in a quartz enriched hydrotermalised rock, originally of intrusive to sub-volcanic type, in close relationships with the volcanic rocks of the Collio Formation (Permian).
It was excavated with a couple of galleries late in the 19th century.

SEM Photograps of some minerals from Prà Piazzo can be found at http://dbami.amiminerals.it/lfm/viewer.php?albid=70&stage=3&ref_imgid=2685

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


10 valid minerals.

Detailed Mineral List:

Acanthite
Formula: Ag2S
Reference: Montrasio A., Sciesa E., Vignola P. (1997): Collezionare minerali. Ed. Hobby & Work, Milano, 800 pp.
Baryte
Formula: BaSO4
Reference: Montrasio A., Sciesa E., Vignola P. (1997): Collezionare minerali. Ed. Hobby & Work, Milano, 800 pp.
Baumstarkite
Formula: Ag3Sb3S6
Reference: Guastoni A., Gentile P., Nestola F., Possenti I. (2016) Baumstarkite di Prapiazzo, Introbio, Valsassina (LC). Novità di mineralogia sistematica italiana. Rivista Mineralogica Italiana, 50, 2 (2-2016), 120.
Dolomite
Formula: CaMg(CO3)2
Reference: Giovanni Scapin collection; Guastoni A., Gentile P., Nestola F., Possenti I. (2016): Baumstarkite di Prapiazzo, Introbio, Valsassina (LC). Novità di mineralogia sistematica italiana. Rivista Mineralogica Italiana, 50, 2 (2-2016), 120; Guastoni A., Gentile P., Nestola F., Possenti I. (2016): Imiterite di Prapiazzo, Introbio, Valsassina (LC). Novità di mineralogia sistematica italiana. Rivista Mineralogica Italiana, 50, 2 (2-2016), 120-121.
Galena
Formula: PbS
Reference: Montrasio A., Sciesa E., Vignola P. (1997): Collezionare minerali. Ed. Hobby & Work, Milano, 800 pp.; Guastoni A., Gentile P., Nestola F., Possenti I. (2016): Baumstarkite di Prapiazzo, Introbio, Valsassina (LC). Novità di mineralogia sistematica italiana. Rivista Mineralogica Italiana, 50, 2 (2-2016), 120; Guastoni A., Gentile P., Nestola F., Possenti I. (2016): Imiterite di Prapiazzo, Introbio, Valsassina (LC). Novità di mineralogia sistematica italiana. Rivista Mineralogica Italiana, 50, 2 (2-2016), 120-121.
Imiterite
Formula: Ag2HgS2
Reference: Guastoni A., Gentile P., Nestola F., Possenti I. (2016): Imiterite di Prapiazzo, Introbio, Valsassina (LC). Novità di mineralogia sistematica italiana. Rivista Mineralogica Italiana, 50, 2 (2-2016), 120-121.
Pyrargyrite
Formula: Ag3SbS3
Reference: Montrasio A., Sciesa E., Vignola P. (1997): Collezionare minerali. Ed. Hobby & Work, Milano, 800 pp.; Ambrino P., Blass G., Boscardin M., Ciriotti M.E., Dalla Fontana G., Kolitsch U., Martini B., Milli L., Salvetti A., Bonacina E. (2008): Borgofranco d'Ivrea. La paragenesi a solfuri e solfosali delle miniere argentifere. Rivista Mineralogica Italiana, 42, 3 (3-2008), 144-162 [pyargirite and pyrostilpnite from Pra' Piazzo are cited on page 156 and 157, respectively].
Pyrostilpnite
Formula: Ag3SbS3
Reference: Montrasio A., Sciesa E., Vignola P. (1997): Collezionare minerali. Ed. Hobby & Work, Milano, 800 pp.; ; Ambrino P., Blass G., Boscardin M., Ciriotti M.E., Dalla Fontana G., Kolitsch U., Martini B., Milli L., Salvetti A., Bonacina E. (2008): Borgofranco d'Ivrea. La paragenesi a solfuri e solfosali delle miniere argentifere. Rivista Mineralogica Italiana, 42, 3 (3-2008), 144-162 [pyargirite and pyrostilpnite from are Pra' Piazzo are cited on page 156 and 157, respectively].
Quartz
Formula: SiO2
Reference: Guastoni A., Gentile P., Nestola F., Possenti I. (2016): Baumstarkite di Prapiazzo, Introbio, Valsassina (LC). Novità di mineralogia sistematica italiana. Rivista Mineralogica Italiana, 50, 2 (2-2016), 120; Guastoni A., Gentile P., Nestola F., Possenti I. (2016): Imiterite di Prapiazzo, Introbio, Valsassina (LC). Novità di mineralogia sistematica italiana. Rivista Mineralogica Italiana, 50, 2 (2-2016), 120-121.
Sphalerite
Formula: ZnS
Reference: Observed in various collections
'Tetrahedrite'
Formula: Cu6Cu4(X)2Sb4S13
Reference: Montrasio A., Sciesa E., Vignola P. (1997): Collezionare minerali. Ed. Hobby & Work, Milano, 800 pp. Db Ami Minerals - >SEM Photos http://dbami.amiminerals.it/lfm/viewer.php?albid=70&stage=3&imgid=2685

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
Acanthite2.BA.35Ag2S
Baumstarkite2.HA.25Ag3Sb3S6
Galena2.CD.10PbS
Imiterite2.BD.05Ag2HgS2
Pyrargyrite2.GA.05Ag3SbS3
Pyrostilpnite2.GA.10Ag3SbS3
Sphalerite2.CB.05aZnS
'Tetrahedrite'2.GB.05Cu6Cu4(X)2Sb4S13
Group 4 - Oxides and Hydroxides
Quartz4.DA.05SiO2
Group 5 - Nitrates and Carbonates
Dolomite5.AB.10CaMg(CO3)2
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
Baryte7.AD.35BaSO4

List of minerals arranged by Dana 8th Edition classification

Group 2 - SULFIDES
AmBnXp, with (m+n):p = 2:1
Acanthite2.4.1.1Ag2S
AmBnXp, with (m+n):p = 3:2
Imiterite2.5.8.1Ag2HgS2
AmXp, with m:p = 1:1
Galena2.8.1.1PbS
Sphalerite2.8.2.1ZnS
Group 3 - SULFOSALTS
3 <ø < 4
'Tetrahedrite'3.3.6.1Cu6Cu4(X)2Sb4S13
ø = 3
Pyrargyrite3.4.1.2Ag3SbS3
Pyrostilpnite3.4.2.2Ag3SbS3
Group 14 - ANHYDROUS NORMAL CARBONATES
AB(XO3)2
Dolomite14.2.1.1CaMg(CO3)2
Group 28 - ANHYDROUS ACID AND NORMAL SULFATES
AXO4
Baryte28.3.1.1BaSO4
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz75.1.3.1SiO2
Unclassified Minerals, Mixtures, etc.
Baumstarkite-Ag3Sb3S6

List of minerals for each chemical element

CCarbon
C DolomiteCaMg(CO3)2
OOxygen
O BaryteBaSO4
O DolomiteCaMg(CO3)2
O QuartzSiO2
MgMagnesium
Mg DolomiteCaMg(CO3)2
SiSilicon
Si QuartzSiO2
SSulfur
S AcanthiteAg2S
S GalenaPbS
S PyrargyriteAg3SbS3
S PyrostilpniteAg3SbS3
S TetrahedriteCu6Cu4(X)2Sb4S13
S BaryteBaSO4
S SphaleriteZnS
S BaumstarkiteAg3Sb3S6
S ImiteriteAg2HgS2
CaCalcium
Ca DolomiteCaMg(CO3)2
CuCopper
Cu TetrahedriteCu6Cu4(X)2Sb4S13
ZnZinc
Zn SphaleriteZnS
AgSilver
Ag AcanthiteAg2S
Ag PyrargyriteAg3SbS3
Ag PyrostilpniteAg3SbS3
Ag BaumstarkiteAg3Sb3S6
Ag ImiteriteAg2HgS2
SbAntimony
Sb PyrargyriteAg3SbS3
Sb PyrostilpniteAg3SbS3
Sb TetrahedriteCu6Cu4(X)2Sb4S13
Sb BaumstarkiteAg3Sb3S6
BaBarium
Ba BaryteBaSO4
HgMercury
Hg ImiteriteAg2HgS2
PbLead
Pb GalenaPbS

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
- Montrasio A., Sciesa E., Vignola P. (1997): Collezionare minerali. Ed. Hobby & Work, Milano, 800 pp.
- Ambrino P., Blass G., Boscardin M., Ciriotti M.E., Dalla Fontana G., Kolitsch U., Martini B., Milli L., Salvetti A., Bonacina E. (2008): Borgofranco d'Ivrea. La paragenesi a solfuri e solfosali delle miniere argentifere. Rivista Mineralogica Italiana, 42, 3 (3-2008), 144-162 [pyargirite and pyrostilpnite from Pra' Piazzo are cited on page 156 and 157, respectively].
- Guastoni A., Gentile P., Nestola F., Possenti I. (2016): Baumstarkite di Prapiazzo, Introbio, Valsassina (LC). Novità di mineralogia sistematica italiana. Rivista Mineralogica Italiana, 50, 2 (2-2016), 120.
- Guastoni A., Gentile P., Nestola F., Possenti I. (2016): Imiterite di Prapiazzo, Introbio, Valsassina (LC). Novità di mineralogia sistematica italiana. Rivista Mineralogica Italiana, 50, 2 (2-2016), 120-121.

External Links


Other Regions, Features and Areas containg this locality

Eurasian PlateTectonic Plate
EuropeContinent
Italy

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