Mineral Evolution Database

Created and maintained by the Mineral Evolution Project in partnership with RRUFF and mindat.

Mineral locality data provided by mindat.org

The Mineral Evolution database is currently under development.

The goal of this page is to present localities at which the mineral is found, and estimates of the oldest possible geologic age of the minerals at these localities.

Locality Name:
Gilba Valley, Brossasco, Varaita Valley, Cuneo Province, Piedmont, Italy

Oldest recorded age at locality: 36.4
Youngest recorded age at locality: 34.4

mindat Locality ID: 62936
mindat URL: http://www.mindat.org/loc-62936.html

Tectonic Settings:

Total number of sublocalities beneath "Gilba Valley, Brossasco, Varaita Valley, Cuneo Province, Piedmont, Italy": 2
Total number of bottom-level sublocalities: 2

Number of Child Localities: 2
Child Localities:
Masueria
San Giacomo

Latitude: 44°35'11"N
Longitude: 7°19'35"E
Decimal Degree (lat, lon): 44.586388888889,7.3263888888889

A	This mineral is Anthropogenic.
G	This mineral is directly dated.
B	This mineral is reported as having this age.
Y	This mineral is using an age reported as an element mineralization period.
O	This mineral is using an age calculated from all data at the locality.
R	The age displayed for this mineral originates from a different, non-child locality.
P	The age displayed for this mineral is the range of ages for this mineral at all of this locality's children.
	This mineral's age has not yet been recorded.

Amphibole	Brackebuschite	Chlorite	Chloritoid	Clay	Corundum	Diaspore	Dumortierite	Ellenbergerite	Garnet
Mica	Monazite	None	Not in a structural group	Pyrite	Pyroxene	Rutile	Sapphirine	Spinel	Staurolite
Sulphur	Talc	Tourmaline	Wagnerite	Zircon

Almandine ()*	Bearthite ()*	Clinochlore ()*	Coesite ()*	Corundum ()*
Dravite ()*	Ellenbergerite ()*	Enstatite ()*	Gedrite ()*	Goethite ()*
Kyanite ()*	Magnesiochloritoid ()*	Magnesiodumortierite ()*	Magnesiostaurolite ()*	Monazite-(Ce) ()*
Muscovite ()*	Phlogopite ()*	Phosphoellenbergerite ()*	Pyrite ()*	Pyrope ()*
Rutile ()*	Sapphirine ()*	Schorl ()*	Spinel ()*	Sulphur ()*
Talc ()*	Wagnerite ()*	Zircon ()*

This Mineral list contains entries from this locality, including sub-localities. Minerals in bold are reported by mindat.org as occurring directly at this locality, and do not occur at any children (sublocalities) of this locality.

Elements at this locality, including sub-localities: Al B C Ca Ce F Fe H K Li Mg Na O P S Si Ti Zr

Elements from minerals reported directly at this locality: Al Ca Ce F H K Mg O P Si Ti Zr

Structural Groups for minerals in this locality:
Amphibole Brackebuschite Chlorite Chloritoid Clay Corundum Diaspore Dumortierite Ellenbergerite Garnet
Mica Monazite None Not in a structural group Pyrite Pyroxene Rutile Sapphirine Spinel Staurolite
Sulphur Talc Tourmaline Wagnerite Zircon

28 IMA Minerals at location:

Mineral name	Structural Groups	IMA Formula	Max Age (Ma)	Min Age (Ma)	# of Sublocalities containing mineral	LOCALITY IDs, not mindat ids	# of localities containing mineral
Almandine ()*	Garnet	Fe²⁺₃Al₂(SiO₄)₃	36.4	34.4	1	70574	2353
Bearthite ()*	Brackebuschite	Ca₂Al(PO₄)₂(OH)	36.4	34.4	0		9
Clinochlore ()*	Chlorite Clay	Mg₅Al(AlSi₃O₁₀)(OH)₈	36.4	34.4	0		1756
Coesite ()*	Not in a structural group	SiO₂	36.4	34.4	1	70574	77
Corundum ()*	Corundum	Al₂O₃	36.4	34.4	0		1797
Dravite ()*	Tourmaline	NaMg₃Al₆(Si₆O₁₈)(BO₃)₃(OH)₃(OH)	36.4	34.4	1	70574	648
Ellenbergerite ()*	Ellenbergerite	Mg₆(Mg,Ti,Zr, )₂(Al,Mg)₆Si₈O₂₈(OH)₁₀	36.4	34.4	0		3
Enstatite ()*	Pyroxene	Mg₂Si₂O₆	36.4	34.4	1	70574	944
Gedrite ()*	Amphibole	Mg₂(Mg₃Al₂)(Si₆Al₂)O₂₂(OH)₂	36.4	34.4	0		178
Goethite ()*	Diaspore	FeO(OH)	36.4	34.4	1	70574	7437
Kyanite ()*	Not in a structural group	Al₂OSiO₄	36.4	34.4	1	70574	1507
Magnesiochloritoid ()*	Chloritoid	MgAl₂O(SiO₄)(OH)₂	36.4	34.4	0		12
Magnesiodumortierite ()*	Dumortierite	MgAl₆BSi₃O₁₇(OH)			1	70575	6
Magnesiostaurolite ()*	Staurolite	Mg(Mg,Li)₃(Al,Mg)₁₈Si₈O₄₄(OH)₄	36.4	34.4	1	70574	7
Monazite-(Ce) ()*	Monazite	Ce(PO₄)	36.4	34.4	0		945
Muscovite ()*	Mica Clay	KAl₂(Si₃Al)O₁₀(OH)₂	36.4	34.4	0		17380
Phlogopite ()*	Mica Clay	KMg₃(AlSi₃O₁₀)(OH)₂	36.4	34.4	0		2273
Phosphoellenbergerite ()*	Ellenbergerite	(Mg, )₂Mg₁₂(PO₄,PO₃OH)₆(PO₃OH,CO₃)₂(OH)₆	36.4	34.4	1	70574	6
Pyrite ()*	Pyrite	FeS₂	36.4	34.4	1	70574	39462
Pyrope ()*	Garnet	Mg₃Al₂(SiO₄)₃	36.4	34.4	1	70574	341
Rutile ()*	Rutile	TiO₂	36.4	34.4	1	70574	5614
Sapphirine ()*	Sapphirine	Mg₄(Mg₃Al₉)O₄[Si₃Al₉O₃₆]	36.4	34.4	1	70574	129
Schorl ()*	Tourmaline	NaFe²⁺₃Al₆(Si₆O₁₈)(BO₃)₃(OH)₃(OH)	36.4	34.4	1	70574	2705
Spinel ()*	Spinel	MgAl₂O₄	36.4	34.4	0		1934
Sulphur ()*	Sulphur	S	36.4	34.4	1	70574	2045
Talc ()*	Clay Talc	Mg₃Si₄O₁₀(OH)₂	36.4	34.4	0		3337
Wagnerite ()*	Wagnerite	Mg₂(PO₄)F	36.4	34.4	0		61
Zircon ()*	Zircon	Zr(SiO₄)	36.4	34.4	1	70574	5251

1 Ages assigned to this locality:

	Excel ID	Max Age (Ma)	Min Age (Ma)	Age as listed in reference	Dating Method	Age Interpret	Prioritized?	Sample Source	Sample Num	Run Num	Age from other Locality	Dated Mineral	Minerals explicitely stated as having this age	Age applies to these Elements	MinDat Locality ID	Dated Locality (Max Age)	Location as listed in reference	Reference	Reference DOI	Reference ID	Age Notes
	Alexandra-0163	36.4	34.4	35.4 ± 1.0	U-Pb	Age of metamorphism		zircon	17540			Zircon	Magnesiostaurolite		195949	Masueria, Gilba Valley, Brossasco, Varaita Valley, Cuneo Province, Piedmont, Italy	Dora Maira Massif	Gebauer et al. (1997)	10.1016/S0024-4937(97)82002-6	L41_5

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...