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Porettana Railway tunnels and cuts, Porretta quartz sites, Porretta Terme, Alto Reno Terme, Metropolitan City of Bologna, Emilia-Romagna, Italyi
Regional Level Types
Porettana Railway tunnels and cuts- not defined -
Porretta quartz sites- not defined -
Porretta TermeMunicipality (Former)
Alto Reno TermeCommune
Metropolitan City of BolognaMetropolitan City
Emilia-RomagnaRegion
ItalyCountry

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Key
Latitude & Longitude (WGS84):
44° 9' 1'' North , 10° 58' 53'' East
Latitude & Longitude (decimal):
Köppen climate type:
Nearest Settlements:
PlacePopulationDistance
Berzantina1,315 (2014)0.8km
Porretta Terme3,632 (2016)1.6km
Speranza112 (2014)2.0km
Ponte della Venturina1,450 (2016)2.3km
Cà Battista-Ca' Bettini159 (2016)2.9km
Name(s) in local language(s):
Gallerie e tagli della Ferrovia Porrettana, Siti del quarzo di Porretta, Porretta Terme, Alto Reno Terme, Valle del Reno, Provincia di Bologna, Emilia-Romagna, Italia


Porettana Railway tunnels and cuts between Porretta Terme and Pracchia (Pistoia Province, Tuscany).

The railway excavations to the south of Porretta Terme, carried out in the first half of the 1860s, were the most prolific source of specimens among the historical Porretta quartz sites (Bombicci, 1869 and 1874). Particularly prolific was the Madonna del Ponte tunnel just to the south of Porretta Terme (the coordinates indicate the north portal), that yielded a large number of high-quality specimens including a large crystal aggregate weighing more than 14 kg.

Select Mineral List Type

Standard Detailed Gallery Strunz Dana Chemical Elements

Mineral List


1 valid mineral.

Detailed Mineral List:

Quartz
Formula: SiO2
Reference: Bombicci, L. (1869) La collezione dei cristalli di quarzo aeroidro di Porretta. Memorie della R. Accademia delle Scienze dell'Istituto di Bologna, serie 2, 9, 56-60. Bombicci, L. (1874) Descrizione della mineralogia generale della provincia di Bologna. Seconda parte. Memorie della R. Accademia delle Scienze dell'Istituto di Bologna, serie 3, 5, 105-222.

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
Quartz4.DA.05SiO2

List of minerals arranged by Dana 8th Edition classification

Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz75.1.3.1SiO2

List of minerals for each chemical element

OOxygen
O QuartzSiO2
SiSilicon
Si QuartzSiO2

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Bombicci, L. (1869) La collezione dei cristalli di quarzo aeroidro di Porretta. Memorie della R. Accademia delle Scienze dell'Istituto di Bologna, serie 2, 9, 56-60.
Bombicci, L. (1874) Descrizione della mineralogia generale della provincia di Bologna. Seconda parte. Memorie della R. Accademia delle Scienze dell'Istituto di Bologna, serie 3, 5, 105-222.

Other Regions, Features and Areas containing this locality

Eurasian PlateTectonic Plate
EuropeContinent
Italy
  • Emilia-Romagna

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