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:
Roccaccia, Allumiere, Tolfa Mts District, Metropolitan City Of Rome Capital, Lazio, Italy

Oldest recorded age at locality: 3.4
Youngest recorded age at locality: 3

mindat Locality ID: 30014
mindat URL: http://www.mindat.org/loc-30014.html

Tectonic Settings:

Total number of sublocalities beneath "Roccaccia, Allumiere, Tolfa Mts District, Metropolitan City Of Rome Capital, 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.

Aragonite	Corundum	Fluorite	Garnet	Malachite	Marcasite	None	Not in a structural group	Pyrite	Quartz
Rocksalt	Spinel	Stibnite

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: C Ca Cu F Fe H O Pb S Sb Si Zn

Elements from minerals reported directly at this locality: C Ca Cu F Fe H O Pb S Sb Si Zn

Structural Groups for minerals in this locality:
Aragonite Corundum Fluorite Garnet Malachite Marcasite None Not in a structural group Pyrite Quartz
Rocksalt Spinel Stibnite

13 IMA Minerals at location:

Andradite ()*	Azurite ()*	Cerussite ()*	Fluorite ()*	Galena ()*
Hematite ()*	Magnetite ()*	Malachite ()*	Marcasite ()*	Pyrite ()*
Quartz ()*	Rosasite ()*	Stibnite ()*

Mineral name	Structural Groups	IMA Formula	Max Age (Ma)	Min Age (Ma)	# of localities containing mineral
Andradite ()*	Garnet	Ca₃Fe³⁺₂(SiO₄)₃	3.4	3	1534
Azurite ()*	Not in a structural group	Cu₃(CO₃)₂(OH)₂	3.4	3	5509
Cerussite ()*	Aragonite	Pb(CO₃)	3.4	3	4979
Fluorite ()*	Fluorite	CaF₂	3.4	3	9617
Galena ()*	Rocksalt	PbS	3.4	3	24243
Hematite ()*	Corundum	Fe₂O₃	3.4	3	14640
Magnetite ()*	Spinel	Fe²⁺Fe³⁺₂O₄	3.4	3	14899
Malachite ()*	Malachite	Cu₂(CO₃)(OH)₂	3.4	3	12537
Marcasite ()*	Marcasite	FeS₂	3.4	3	5674
Pyrite ()*	Pyrite	FeS₂	3.4	3	39462
Quartz ()*	Quartz	SiO₂	3.4	3	61156
Rosasite ()*	Malachite	CuZn(CO₃)(OH)₂	3.4	3	454
Stibnite ()*	Stibnite	Sb₂S₃	3.4	3	3418

Locality Notes from all Ages at Locality:

Age ID	Locality Notes
Michelle_0071	Abandoned pyrite and galena mine

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
	Michelle_0071	3.4	3	3.2±0.2	K-Ar	Age of monzanitic porphyry		sanidine	K21			Sanidine			30014	Roccaccia, Allumiere, Tolfa Mts District, Metropolitan City Of Rome Capital, Lazio, Italy	La Roccaccia	Fornaseri (1985)		RDSIMF40_73	Age of sanidine from monzonitic porphyry. Sample described as hypoabyssalite.

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...