Home Page About Mindat The Mindat Manual History of Mindat Copyright Status Who We Are Our Science Mindat Newsletter [Free Download]Contact Us

Donate to Mindat Sponsor a Page Corporate Sponsorship Sponsored Pages

Learning Center What Is a Mineral?The Most Common Minerals on Earth Information for Educators Mindat Articles Mindat Newsletter [Free Download]The Elements The Mineral Quiz

Search Form Minerals by Properties Minerals by Chemistry Mineral Visual Explorer Advanced Locality Search Random Mineral Random Locality Search by minID Minerals by Country Alphabetical Mineral Index Alphabetical Locality Search Mineral Association Search List of Countries Localities Near Me Photo Search Search Articles Search Glossary The Rock H. Currier Digital Library More Search Options

The Mindat Manual Add a New Photo Rate Photos Locality Edit Report Coordinate Completion Report Add Glossary Item

Minerals Petrology Fossils Meteorites Geologic Time

Mining Companies Statistics Mineral Museums Clubs & Organizations Mineral Shows & Events Device Settings Time Machine

Read Discussions Identification Request

Photo Search Photo Galleries Search by Colour Photo Colour Explorer New Photos Today New Photos Yesterday Members' Photo Galleries Past Photo of the Day Gallery Photography

Rio Pian del Foco, Olbicella, Molare, Alessandria Province, Piedmont, Italy i
Regional Level Types
Rio Pian del Foco - not defined -
Olbicella - not defined -
Molare Municipality
Alessandria Province Province
Piedmont Region
Italy Country

Regional Level Types
Rio Pian del Foco	- not defined -
Olbicella	- not defined -
Molare	Municipality
Alessandria Province	Province
Piedmont	Region
Italy	Country

This page is currently not sponsored. Click here to sponsor this page.

Photos Maps Search

Standard

All Photos (55)Specimen Photos (37)Locality Photos (18)Photos by Color Gallery Photo Statistics Add Photo

Map Pages Nearest Localities

Mineral Search Similar Localities Nearest Localities Predictive Mineralogy Search Google

The collecting site

Rio Pian del Foco, Olbicella, Molare, Alessandria Province, Piedmont, Italy

The collecting site

Rio Pian del Foco, Olbicella, Molare, Alessandria Province, Piedmont, Italy

Rio Pian del Foco

Rio Pian del Foco, Olbicella, Molare, Alessandria Province, Piedmont, Italy

Rio Pian del Foco

Rio Pian del Foco, Olbicella, Molare, Alessandria Province, Piedmont, Italy

The collecting site

Rio Pian del Foco, Olbicella, Molare, Alessandria Province, Piedmont, Italy

Rio Pian del Foco

Rio Pian del Foco, Olbicella, Molare, Alessandria Province, Piedmont, Italy

Rio Pian del Foco

Rio Pian del Foco, Olbicella, Molare, Alessandria Province, Piedmont, Italy

The collecting site

Rio Pian del Foco, Olbicella, Molare, Alessandria Province, Piedmont, Italy

The collecting site

Rio Pian del Foco, Olbicella, Molare, Alessandria Province, Piedmont, Italy

Latitude & Longitude (WGS84):

44° 31' 2'' North , 8° 34' 5'' East

Latitude & Longitude (decimal):

G#: spyj6bpj4

Köppen climate type:

Csb : Warm-summer Mediterranean climate

Nearest Settlements:

Place	Population	Distance
Moretti	127 (2014)	3.1km
Palo-Patarè	128 (2014)	3.4km
Urbe	869 (2012)	3.7km
San Pietro d'Olba	206 (2014)	3.7km
Tiglieto	613 (2012)	4.1km

Mindat Locality ID:

30181

Long-form identifier:

mindat:1:2:30181:4

GUID (UUID V4):

Name(s) in local language(s):

Rio Pian del Foco, Olbicella, Tiglieto, Genova, Liguria, Italia

The minerals are localized in the fractures of a metagabbro rock, included into serpentines occurring along the Pian del Foco River, near Olbicella village (municipality of Tiglieto).

To reach the site from up to Tiglieto to Badia di Tiglieto, overtaking the parking for the abbey (Badia), along the road for about 2.5 km. Park just after the bridge over the stream Olbicella, take the dirt road to the left, passing next to a farm. The site can be reached in about 15 minutes.

Notes: According to the coordinates, this locality is already in Ponzone municipality. The hamlet "C. Pian del Fuoco" is at 44.5233, 8.5763.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List

15 valid minerals.

Detailed Mineral List:

ⓘ Allophane

Formula: (Al₂O₃)(SiO₂)_1.3-2 · 2.5-3H₂O

References:

Cortesogno L., Lucchetti G., Penco A.M. - 1975 - Associazioni a zeoliti nel "Gruppo di Voltri" : caratteristiche mineralogiche e loro significato - rend. S.I.M.P. - Milano, vol. 31, n.2 pp. 673-710

ⓘ Analcime

Formula: Na(AlSi₂O₆) · H₂O

References:

Antofilli, Mario, Borgo, Emilio, Palenzona, Andrea (1983) I nostri minerali : geologia e mineralogia in Liguria (1st ed.). Sagep Editrice.

ⓘ 'Apophyllite Group'

Formula: AB₄[Si₈O₂₂]X · 8H₂O

References:

ⓘ Calcite

Formula: CaCO₃

References:

Antofilli, Mario, Borgo, Emilio, Palenzona, Andrea (1983) I nostri minerali : geologia e mineralogia in Liguria (1st ed.). Sagep Editrice.

ⓘ Celadonite

Formula: K(MgFe³⁺◻)(Si₄O₁₀)(OH)₂

References:

Antofilli, Mario, Borgo, Emilio, Palenzona, Andrea (1983) I nostri minerali : geologia e mineralogia in Liguria (1st ed.). Sagep Editrice.

ⓘ 'Chabazite'

References:

ⓘ Chalcopyrite

Formula: CuFeS₂

References:

Antofilli, Mario, Borgo, Emilio, Palenzona, Andrea (1983) I nostri minerali : geologia e mineralogia in Liguria (1st ed.). Sagep Editrice.

ⓘ 'Chlorite Group'

References:

Antofilli, Mario, Borgo, Emilio, Palenzona, Andrea (1983) I nostri minerali : geologia e mineralogia in Liguria (1st ed.). Sagep Editrice.

ⓘ 'Garnet Group'

Formula: X₃Z₂(SiO₄)₃

References:

Antofilli, Mario, Borgo, Emilio, Palenzona, Andrea (1983) I nostri minerali : geologia e mineralogia in Liguria (1st ed.). Sagep Editrice.

ⓘ Gismondine-Ca

Formula: CaAl₂Si₂O₈ · 4H₂O

References:

Wadoski-Romeijn, E., Armbruster, T. (2013) Topotactic transformation and dehydration of the zeolite gismondine to a novel Ca feldspar structure. American Mineralogist, 98 (11) 1988-1997 doi:10.2138/am.2013.4495

ⓘ 'Gismondine Subgroup'

References:

ⓘ Mesolite

Formula: Na₂Ca₂Si₉Al₆O₃₀ · 8H₂O

References:

ⓘ Natrolite

Formula: Na₂Al₂Si₃O₁₀ · 2H₂O

References:

ⓘ Opal

Formula: SiO₂ · nH₂O

References:

ⓘ 'Phillipsite Subgroup'

Formula: (Ca_0.5,K,Na,Ba_0.5)_4-7[Al_4-7Si_12-9O₃₂] ^. 12H₂O

References:

ⓘ Prehnite

Formula: Ca₂Al₂Si₃O₁₀(OH)₂

References:

ⓘ Pyrite

Formula: FeS₂

References:

Antofilli, Mario, Borgo, Emilio, Palenzona, Andrea (1983) I nostri minerali : geologia e mineralogia in Liguria (1st ed.). Sagep Editrice.

ⓘ Saponite

Formula: Ca_0.25(Mg,Fe)₃((Si,Al)₄O₁₀)(OH)₂ · nH₂O

References:

Antofilli, Mario, Borgo, Emilio, Palenzona, Andrea (1983) I nostri minerali : geologia e mineralogia in Liguria (1st ed.). Sagep Editrice.

ⓘ Tacharanite

Formula: Ca₁₂Al₂Si₁₈O₃₃ (OH)₃₆

References:

ⓘ Thomsonite-Ca

Formula: NaCa₂[Al₅Si₅O₂₀] · 6H₂O

References:

ⓘ Tobermorite

Formula: Ca₅Si₆O₁₇ · 5H₂O

Gallery:

ⓘ 'Chabazite'

Chabazite

Rio Pian del Foco, Olbicella, Molare, Alessandria Province, Piedmont, Italy

Chabazite

Rio Pian del Foco, Olbicella, Molare, Alessandria Province, Piedmont, Italy

Chabazite

Rio Pian del Foco, Olbicella, Molare, Alessandria Province, Piedmont, Italy

Na₂Al₂Si₃O₁₀ · 2H₂Oⓘ Natrolite

Natrolite, etc.

Rio Pian del Foco, Olbicella, Molare, Alessandria Province, Piedmont, Italy

Natrolite, etc.

Rio Pian del Foco, Olbicella, Molare, Alessandria Province, Piedmont, Italy

Natrolite, etc.

Rio Pian del Foco, Olbicella, Molare, Alessandria Province, Piedmont, Italy

Ca₁₂Al₂Si₁₈O₃₃ (OH)₃₆ⓘ Tacharanite

Tacharanite

Rio Pian del Foco, Olbicella, Molare, Alessandria Province, Piedmont, Italy

Tacharanite

Rio Pian del Foco, Olbicella, Molare, Alessandria Province, Piedmont, Italy

Tacharanite

Rio Pian del Foco, Olbicella, Molare, Alessandria Province, Piedmont, Italy

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
ⓘ	Chalcopyrite	2.CB.10a	CuFeS₂
ⓘ	Pyrite	2.EB.05a	FeS₂
Group 4 - Oxides and Hydroxides
ⓘ	Opal	4.DA.10	SiO₂ · nH₂O
Group 5 - Nitrates and Carbonates
ⓘ	Calcite	5.AB.05	CaCO₃
Group 9 - Silicates
ⓘ	Tobermorite	9.DG.10	Ca₅Si₆O₁₇ · 5H₂O
ⓘ	Prehnite	9.DP.20	Ca₂Al₂Si₃O₁₀(OH)₂
ⓘ	Celadonite	9.EC.15	K(MgFe³⁺◻)(Si₄O₁₀)(OH)₂
ⓘ	Saponite	9.EC.45	Ca_0.25(Mg,Fe)₃((Si,Al)₄O₁₀)(OH)₂ · nH₂O
ⓘ	Allophane	9.ED.20	(Al₂O₃)(SiO₂)_1.3-2 · 2.5-3H₂O
ⓘ	Mesolite	9.GA.05	Na₂Ca₂Si₉Al₆O₃₀ · 8H₂O
ⓘ	Natrolite	9.GA.05	Na₂Al₂Si₃O₁₀ · 2H₂O
ⓘ	Thomsonite-Ca	9.GA.10	NaCa₂[Al₅Si₅O₂₀] · 6H₂O
ⓘ	Analcime	9.GB.05	Na(AlSi₂O₆) · H₂O
ⓘ	Gismondine-Ca	9.GC.05	CaAl₂Si₂O₈ · 4H₂O
ⓘ	Tacharanite	9.HA.75	Ca₁₂Al₂Si₁₈O₃₃ (OH)₃₆
Unclassified
ⓘ	'Apophyllite Group'	-	AB₄[Si₈O₂₂]X · 8H₂O
ⓘ	'Chabazite'	-
ⓘ	'Chlorite Group'	-
ⓘ	'Phillipsite Subgroup'	-	(Ca_0.5,K,Na,Ba_0.5)_4-7[Al_4-7Si_12-9O₃₂] ^. 12H₂O
ⓘ	'Garnet Group'	-	X₃Z₂(SiO₄)₃
ⓘ	'Gismondine Subgroup'	-

List of minerals for each chemical element

H	Hydrogen
H	ⓘ Allophane	(Al₂O₃)(SiO₂)_1.3-2 · 2.5-3H₂O
H	ⓘ Analcime	Na(AlSi₂O₆) · H₂O
H	ⓘ Apophyllite Group	AB₄[Si₈O₂₂]X · 8H₂O
H	ⓘ Celadonite	K(MgFe³⁺◻)(Si₄O₁₀)(OH)₂
H	ⓘ Gismondine-Ca	CaAl₂Si₂O₈ · 4H₂O
H	ⓘ Mesolite	Na₂Ca₂Si₉Al₆O₃₀ · 8H₂O
H	ⓘ Natrolite	Na₂Al₂Si₃O₁₀ · 2H₂O
H	ⓘ Opal	SiO₂ · nH₂O
H	ⓘ Phillipsite Subgroup	(Ca_0.5,K,Na,Ba_0.5)_4-7[Al_4-7Si_12-9O₃₂] ^. 12H₂O
H	ⓘ Prehnite	Ca₂Al₂Si₃O₁₀(OH)₂
H	ⓘ Saponite	Ca_0.25(Mg,Fe)₃((Si,Al)₄O₁₀)(OH)₂ · nH₂O
H	ⓘ Tacharanite	Ca₁₂Al₂Si₁₈O₃₃ (OH)₃₆
H	ⓘ Thomsonite-Ca	NaCa₂[Al₅Si₅O₂₀] · 6H₂O
H	ⓘ Tobermorite	Ca₅Si₆O₁₇ · 5H₂O
C	Carbon
C	ⓘ Calcite	CaCO₃
O	Oxygen
O	ⓘ Allophane	(Al₂O₃)(SiO₂)_1.3-2 · 2.5-3H₂O
O	ⓘ Analcime	Na(AlSi₂O₆) · H₂O
O	ⓘ Apophyllite Group	AB₄[Si₈O₂₂]X · 8H₂O
O	ⓘ Calcite	CaCO₃
O	ⓘ Celadonite	K(MgFe³⁺◻)(Si₄O₁₀)(OH)₂
O	ⓘ Gismondine-Ca	CaAl₂Si₂O₈ · 4H₂O
O	ⓘ Mesolite	Na₂Ca₂Si₉Al₆O₃₀ · 8H₂O
O	ⓘ Natrolite	Na₂Al₂Si₃O₁₀ · 2H₂O
O	ⓘ Opal	SiO₂ · nH₂O
O	ⓘ Phillipsite Subgroup	(Ca_0.5,K,Na,Ba_0.5)_4-7[Al_4-7Si_12-9O₃₂] ^. 12H₂O
O	ⓘ Prehnite	Ca₂Al₂Si₃O₁₀(OH)₂
O	ⓘ Saponite	Ca_0.25(Mg,Fe)₃((Si,Al)₄O₁₀)(OH)₂ · nH₂O
O	ⓘ Tacharanite	Ca₁₂Al₂Si₁₈O₃₃ (OH)₃₆
O	ⓘ Thomsonite-Ca	NaCa₂[Al₅Si₅O₂₀] · 6H₂O
O	ⓘ Tobermorite	Ca₅Si₆O₁₇ · 5H₂O
O	ⓘ Garnet Group	X₃Z₂(SiO₄)₃
Na	Sodium
Na	ⓘ Analcime	Na(AlSi₂O₆) · H₂O
Na	ⓘ Mesolite	Na₂Ca₂Si₉Al₆O₃₀ · 8H₂O
Na	ⓘ Natrolite	Na₂Al₂Si₃O₁₀ · 2H₂O
Na	ⓘ Phillipsite Subgroup	(Ca_0.5,K,Na,Ba_0.5)_4-7[Al_4-7Si_12-9O₃₂] ^. 12H₂O
Na	ⓘ Thomsonite-Ca	NaCa₂[Al₅Si₅O₂₀] · 6H₂O
Mg	Magnesium
Mg	ⓘ Celadonite	K(MgFe³⁺◻)(Si₄O₁₀)(OH)₂
Mg	ⓘ Saponite	Ca_0.25(Mg,Fe)₃((Si,Al)₄O₁₀)(OH)₂ · nH₂O
Al	Aluminium
Al	ⓘ Allophane	(Al₂O₃)(SiO₂)_1.3-2 · 2.5-3H₂O
Al	ⓘ Analcime	Na(AlSi₂O₆) · H₂O
Al	ⓘ Gismondine-Ca	CaAl₂Si₂O₈ · 4H₂O
Al	ⓘ Mesolite	Na₂Ca₂Si₉Al₆O₃₀ · 8H₂O
Al	ⓘ Natrolite	Na₂Al₂Si₃O₁₀ · 2H₂O
Al	ⓘ Phillipsite Subgroup	(Ca_0.5,K,Na,Ba_0.5)_4-7[Al_4-7Si_12-9O₃₂] ^. 12H₂O
Al	ⓘ Prehnite	Ca₂Al₂Si₃O₁₀(OH)₂
Al	ⓘ Saponite	Ca_0.25(Mg,Fe)₃((Si,Al)₄O₁₀)(OH)₂ · nH₂O
Al	ⓘ Tacharanite	Ca₁₂Al₂Si₁₈O₃₃ (OH)₃₆
Al	ⓘ Thomsonite-Ca	NaCa₂[Al₅Si₅O₂₀] · 6H₂O
Si	Silicon
Si	ⓘ Allophane	(Al₂O₃)(SiO₂)_1.3-2 · 2.5-3H₂O
Si	ⓘ Analcime	Na(AlSi₂O₆) · H₂O
Si	ⓘ Apophyllite Group	AB₄[Si₈O₂₂]X · 8H₂O
Si	ⓘ Celadonite	K(MgFe³⁺◻)(Si₄O₁₀)(OH)₂
Si	ⓘ Gismondine-Ca	CaAl₂Si₂O₈ · 4H₂O
Si	ⓘ Mesolite	Na₂Ca₂Si₉Al₆O₃₀ · 8H₂O
Si	ⓘ Natrolite	Na₂Al₂Si₃O₁₀ · 2H₂O
Si	ⓘ Opal	SiO₂ · nH₂O
Si	ⓘ Phillipsite Subgroup	(Ca_0.5,K,Na,Ba_0.5)_4-7[Al_4-7Si_12-9O₃₂] ^. 12H₂O
Si	ⓘ Prehnite	Ca₂Al₂Si₃O₁₀(OH)₂
Si	ⓘ Saponite	Ca_0.25(Mg,Fe)₃((Si,Al)₄O₁₀)(OH)₂ · nH₂O
Si	ⓘ Tacharanite	Ca₁₂Al₂Si₁₈O₃₃ (OH)₃₆
Si	ⓘ Thomsonite-Ca	NaCa₂[Al₅Si₅O₂₀] · 6H₂O
Si	ⓘ Tobermorite	Ca₅Si₆O₁₇ · 5H₂O
Si	ⓘ Garnet Group	X₃Z₂(SiO₄)₃
S	Sulfur
S	ⓘ Chalcopyrite	CuFeS₂
S	ⓘ Pyrite	FeS₂
K	Potassium
K	ⓘ Celadonite	K(MgFe³⁺◻)(Si₄O₁₀)(OH)₂
K	ⓘ Phillipsite Subgroup	(Ca_0.5,K,Na,Ba_0.5)_4-7[Al_4-7Si_12-9O₃₂] ^. 12H₂O
Ca	Calcium
Ca	ⓘ Calcite	CaCO₃
Ca	ⓘ Gismondine-Ca	CaAl₂Si₂O₈ · 4H₂O
Ca	ⓘ Mesolite	Na₂Ca₂Si₉Al₆O₃₀ · 8H₂O
Ca	ⓘ Phillipsite Subgroup	(Ca_0.5,K,Na,Ba_0.5)_4-7[Al_4-7Si_12-9O₃₂] ^. 12H₂O
Ca	ⓘ Prehnite	Ca₂Al₂Si₃O₁₀(OH)₂
Ca	ⓘ Saponite	Ca_0.25(Mg,Fe)₃((Si,Al)₄O₁₀)(OH)₂ · nH₂O
Ca	ⓘ Tacharanite	Ca₁₂Al₂Si₁₈O₃₃ (OH)₃₆
Ca	ⓘ Thomsonite-Ca	NaCa₂[Al₅Si₅O₂₀] · 6H₂O
Ca	ⓘ Tobermorite	Ca₅Si₆O₁₇ · 5H₂O
Fe	Iron
Fe	ⓘ Celadonite	K(MgFe³⁺◻)(Si₄O₁₀)(OH)₂
Fe	ⓘ Chalcopyrite	CuFeS₂
Fe	ⓘ Pyrite	FeS₂
Fe	ⓘ Saponite	Ca_0.25(Mg,Fe)₃((Si,Al)₄O₁₀)(OH)₂ · nH₂O
Cu	Copper
Cu	ⓘ Chalcopyrite	CuFeS₂
Ba	Barium
Ba	ⓘ Phillipsite Subgroup	(Ca_0.5,K,Na,Ba_0.5)_4-7[Al_4-7Si_12-9O₃₂] ^. 12H₂O

Other Regions, Features and Areas containing this locality

Eurasian PlateTectonic Plate

Apennine OrogenAccretionary Complex

EuropeContinent

Italy

Voltri Massif (Voltri Group)Massif

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

Antofilli, Mario, Borgo, Emilio, Palenzona, Andrea (1985) I nostri minerali : geologia e mineralogia in Liguria (2nd ed.). Edizioni Melita.

Quick NavTop Mineral List Other Regions References

Mindat.org® is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization. Mindat® and mindat.org® are registered trademarks of the Hudson Institute of Mineralogy.
Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2026, except where stated. Most political location boundaries are © OpenStreetMap contributors. Mindat.org relies on the contributions of thousands of members and supporters. Founded in 2000 by Jolyon Ralph and Ida Chau.
Content on this site may not be used to train, fine-tune, or otherwise develop artificial intelligence or machine learning models without prior written permission - see our Terms & Conditions.
To cite: Ralph, J., Von Bargen, D., Martynov, P., Zhang, J., Que, X., Prabhu, A., Morrison, S. M., Li, W., Chen, W., & Ma, X. (2025). Mindat.org: The open access mineralogy database to accelerate data-intensive geoscience research. American Mineralogist, 110(6), 833–844. doi:10.2138/am-2024-9486.
Privacy Policy - Terms & Conditions - Contact Us / DMCA issues - Report a bug/vulnerability Current server date and time: October 21, 2026 10:43:00 Page updated: August 8, 2025 15:53:52

Go to top of page