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:
Cala Fontana Old Quarry, Ponza Island, Latina Province, Lazio, Italy

Oldest recorded age at locality: 1.27
Youngest recorded age at locality: 0.77

mindat Locality ID: 67893
mindat URL: http://www.mindat.org/loc-67893.html

Tectonic Settings:

Total number of sublocalities beneath "Cala Fontana Old Quarry, Ponza Island, Latina Province, Lazio, Italy": 0
Total number of bottom-level sublocalities: 0

Latitude: 0°0'0"N
Longitude: 0°0'0"E
Decimal Degree (lat, lon): 0,0

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.

Amorphous	Clay	Cristobalite	Feldspar	Kaolinite	Mica	Mordenite	None	Pyroxene	Quartz
Tridymite

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 Ca Fe H K Mg Na O Si

Elements from minerals reported directly at this locality: Al Ca Fe H K Mg Na O Si

Structural Groups for minerals in this locality:
Amorphous Clay Cristobalite Feldspar Kaolinite Mica Mordenite None Pyroxene Quartz
Tridymite

9 IMA Minerals at location:

Augite ()*	Cristobalite ()*	Kaolinite ()*	Mordenite ()*	Muscovite ()*
Opal ()*	Quartz ()*	Sanidine ()*	Tridymite ()*

Mineral name	Structural Groups	IMA Formula	Max Age (Ma)	Min Age (Ma)	# of localities containing mineral
Augite ()*	Pyroxene	(Ca,Mg,Fe)₂Si₂O₆	1.27	0.77	2060
Cristobalite ()*	Cristobalite	SiO₂	1.27	0.77	453
Kaolinite ()*	Clay Kaolinite	Al₂Si₂O₅(OH)₄	1.27	0.77	5591
Mordenite ()*	Mordenite	(Na₂,Ca,K₂)₄(Al₈Si₄₀)O₉₆·28H₂O	1.27	0.77	405
Muscovite ()*	Mica Clay	KAl₂(Si₃Al)O₁₀(OH)₂	1.27	0.77	17380
Opal ()*	Amorphous	SiO₂·nH₂O	1.27	0.77	2994
Quartz ()*	Quartz	SiO₂	1.27	0.77	61156
Sanidine ()*	Feldspar	K(AlSi₃O₈)	0.83	0.77	598
Tridymite ()*	Tridymite	SiO₂	1.27	0.77	458

Locality Notes from all Ages at Locality:

Age ID	Locality Notes
Michelle_0174	Trachyte
Michelle_0175_a	Phonolite
Michelle_0176_b	Phonolite

3 Ages assigned to this locality:

Excel ID	Max Age (Ma)	Min Age (Ma)	Age as listed in reference	Dating Method	Age Interpret	Sample Source	Sample Num	Age from other Locality	Dated Mineral	MinDat Locality ID	Dated Locality (Max Age)	Location as listed in reference	Reference	Reference ID	Age Notes
Michelle_0174	1.27	1.19	1.23±0.04	K-Ar	Age of trachyte		8/491	Yes		146131	Ponza Island, Latina Province, Lazio, Italy	La Botte	Fornaseri (1985)	RDSIMF40_73	Age of trachyte
Michelle_0175_a	1.24	1.16	1.2±0.04	K-Ar	Age of phonolite		63	Yes		146131	Ponza Island, Latina Province, Lazio, Italy	Santo Stefano	Fornaseri (1985)	RDSIMF40_73	Age of phonolite
Michelle_0176_b	0.83	0.77	0.8±0.03	K-Ar	Age of phonolite	sanidine	7/606	Yes	Sanidine	146131	Ponza Island, Latina Province, Lazio, Italy	Santo Stefano	Fornaseri (1985)	RDSIMF40_73	Age of phonolite

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...