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:
Viterbo Province, Lazio, Italy

Oldest recorded age at locality: 1
Youngest recorded age at locality: 0.03

mindat Locality ID: 22888
mindat URL: http://www.mindat.org/loc-22888.html

Tectonic Settings:

Total number of sublocalities beneath "Viterbo Province, Lazio, Italy": 59
Total number of bottom-level sublocalities: 37

Number of Child Localities: 13
Child Localities:
Bagnoregio
Bassano Romano
Bolsena
Civita Castellana
Colle Quartuccio
Gradoli
Làtera Volcano
Montalto Di Castro
Montefiascone
Piansano
Tarquinia
Vico Volcanic Complex (Vico Lake)
Viterbo

Latitude: 42°30'39"N
Longitude: 11°58'25"E
Decimal Degree (lat, lon): 42.510833333333,11.973611111111

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.

Allanite	Allophane	Alunite	Amorphous	Amphibole	Analcime	Apatite	Aragonite	Arsenopyrite	Baddeleyite
Baryte	Bastnäsite	Beryl	Bournonite	Brucite	Calcite	Cancrinite	Cancrinite-sodalite	Chalcopyrite	Chevkinite
Clay	Clinozoisite	Columbite	Copper	Coronadite	Corrensite	Corundum	Cristobalite	Danburite	Diaspore
Epidote	Ettringite	Feldspar	Ferrierite	Fluorite	Gadolinite	Garnet	Gismondine	Gypsum	Harmotome
Hellandite	Humite	Hydrotalcite	Latiumite	Ludwigite	Malachite	Marcasite	Melilite	Mica	Milarite
Molybdenite	Monazite	None	Not in a structural group	Okanoganite	Olivine	Perovskite	Pseudobrookite	Pyrite	Pyroxene
Quartz	Rocksalt	Rutile	Scheelite	Sodalite	Sphalerite	Spinel	Spurrite-Afwillite	Stibnite	Sulphur
Tetrahedrite	Thomsonite	Titanite	Tobermorite	Tourmaline	Tridymite	Vesuvianite	Wollastonite	Wöhlerite	Zircon
Zirconolite

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 As Au B Ba Be C Ca Ce Cl Cs Cu F Fe H K La Li Mg Mn Mo Na O P Pb REE S Sb Si Sr Th Ti U V W Y Zn Zr

Elements from minerals reported directly at this locality:

Structural Groups for minerals in this locality:
Allanite Allophane Alunite Amorphous Amphibole Analcime Apatite Aragonite Arsenopyrite Baddeleyite
Baryte Bastnäsite Beryl Bournonite Brucite Calcite Cancrinite Cancrinite-sodalite Chalcopyrite Chevkinite
Clay Clinozoisite Columbite Copper Coronadite Corrensite Corundum Cristobalite Danburite Diaspore
Epidote Ettringite Feldspar Ferrierite Fluorite Gadolinite Garnet Gismondine Gypsum Harmotome
Hellandite Humite Hydrotalcite Latiumite Ludwigite Malachite Marcasite Melilite Mica Milarite
Molybdenite Monazite None Not in a structural group Okanoganite Olivine Perovskite Pseudobrookite Pyrite Pyroxene
Quartz Rocksalt Rutile Scheelite Sodalite Sphalerite Spinel Spurrite-Afwillite Stibnite Sulphur
Tetrahedrite Thomsonite Titanite Tobermorite Tourmaline Tridymite Vesuvianite Wollastonite Wöhlerite Zircon
Zirconolite

144 IMA Minerals at location:

Aegirine-augite ()*	Afghanite ()*	Afwillite ()*	Albite ()*	Allanite-(Ce) ()*
Alunite ()*	Analcime ()*	Anatase ()*	Andradite ()*	Annite ()*
Anorthite ()*	Aragonite ()*	Arsenopyrite ()*	Asbecasite ()*	Augite ()*
Baddeleyite ()*	Baryte ()*	Bastnäsite-(Ce) ()*	Beryl ()*	Boulangerite ()*
Bournonite ()*	Britholite-(Ce) ()*	Calcite ()*	Cancrinite ()*	Capranicaite ()*
Carnotite ()*	Celestine ()*	Chalcopyrite ()*	Chrysocolla ()*	Ciprianiite ()*
Clinohumite ()*	Clinozoisite ()*	Cordierite ()*	Corundum ()*	Cristobalite ()*
Cryptomelane ()*	Cuprite ()*	Cuspidine ()*	Danburite ()*	Davyne ()*
Diopside ()*	Dravite ()*	Ekanite ()*	Epidote ()*	Ettringite ()*
Fantappièite ()*	Farneseite ()*	Fayalite ()*	Ferberite ()*	Ferri-mottanaite-(Ce) ()*
Ferrierite-Mg ()*	Ferro-hornblende ()*	Fluorapatite ()*	Fluorite ()*	Fluorophlogopite ()*
Forsterite ()*	Franzinite ()*	Gadolinite-(Y) ()*	Galena ()*	Gehlenite ()*
Gismondine ()*	Goethite ()*	Gold ()*	Grossular ()*	Gypsum ()*
Haüyne ()*	Hellandite-(Ce) ()*	Helvine ()*	Hematite ()*	Hercynite ()*
Homilite ()*	Hydrobiotite ()*	Hydrocalumite ()*	Hydroxylapatite ()*	Ilmenite ()*
Jarosite ()*	Jennite ()*	Kaliophilite ()*	Kalsilite ()*	Katoite ()*
Kottenheimite ()*	Latiumite ()*	Leucite ()*	Liottite ()*	Maghemite ()*
Magnesio-hastingsite ()*	Magnesio-hornblende ()*	Magnetite ()*	Malachite ()*	Marcasite ()*
Molybdenite ()*	Monazite-(Ce) ()*	Mottanaite-(Ce) ()*	Mullite ()*	Muscovite ()*
Nepheline ()*	Nosean ()*	Opal ()*	Osumilite-(Mg) ()*	Oxy-dravite ()*
Peprossiite-(Ce) ()*	Perovskite ()*	Perrierite-(Ce) ()*	Phillipsite-K ()*	Phlogopite ()*
Piergorite-(Ce) ()*	Pitiglianoite ()*	Pollucite ()*	Portlandite ()*	Pseudobrookite ()*
Pyrite ()*	Pyrope ()*	Quartz ()*	Richterite ()*	Rutile ()*
Sanidine ()*	Scheelite ()*	Siderite ()*	Sodalite ()*	Sphalerite ()*
Spinel ()*	Stibnite ()*	Stillwellite-(Ce) ()*	Stoppaniite ()*	Strätlingite ()*
Sulphur ()*	Tadzhikite-(Ce) ()*	Tetrahedrite-(Zn) ()*	Thomsonite-Ca ()*	Thorianite ()*
Thorite ()*	Titanite ()*	Tobermorite ()*	Tridymite ()*	Tuscanite ()*
Uraninite ()*	Vertumnite ()*	Vesuvianite ()*	Vicanite-(Ce) ()*	Vishnevite ()*
Vonsenite ()*	Wollastonite ()*	Zircon ()*	Zirconolite ()*

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
Aegirine-augite ()*	Pyroxene	(Ca,Na)(Fe³⁺,Mg,Fe²⁺)Si₂O₆	0.4	0.095	1	69315	286
Afghanite ()*	Cancrinite-sodalite	(Na,K)₂₂Ca₁₀(Si₂₄Al₂₄)O₉₆(SO₄)₆Cl₆	1	0.236	12	69272,69280,69281,69285,69293,69296,69314,69316,69319,69320,69322,69325	25
Afwillite ()*	Spurrite-Afwillite	Ca₃[SiO₄][SiO₂(OH)₂]·2H₂O			1	69299	41
Albite ()*	Feldspar	Na(AlSi₃O₈)	1	0.236	3	69295,69307,69314	8803
Allanite-(Ce) ()*	Allanite Epidote	CaCe(Al₂Fe²⁺)[Si₂O₇][SiO₄]O(OH)	1	0.095	3	69306,69314,69315	706
Alunite ()*	None	KAl₃(SO₄)₂(OH)₆	0.31	0.25	1	69291	966
Analcime ()*	Analcime	Na(AlSi₂O₆)·H₂O	1	0.095	10	69272,69285,69286,69287,69289,69293,69309,69312,69315,69325	1627
Anatase ()*	Not in a structural group	TiO₂	1	0.236	4	69306,69315,69320,69325	2162
Andradite ()*	Garnet	Ca₃Fe³⁺₂(SiO₄)₃	1	0.236	13	69272,69282,69283,69285,69287,69293,69295,69296,69300,69314,69315,69317,69325	1534
Annite ()*	Mica Clay	KFe²⁺₃(AlSi₃O₁₀)(OH)₂	0.31	0.25	1	69293	356
Anorthite ()*	Feldspar	Ca(Al₂Si₂O₈)	1	0.095	5	69285,69293,69314,69315,69325	1036
Aragonite ()*	Aragonite	Ca(CO₃)	0.31	0.25	2	69293,69300	3250
Arsenopyrite ()*	Arsenopyrite	FeAsS	0.31	0.25	1	69288	9052
Asbecasite ()*	Not in a structural group	Ca₃TiAs₆Be₂Si₂O₂₀	0.4	0.4	1	69322	8
Augite ()*	Pyroxene	(Ca,Mg,Fe)₂Si₂O₆	1	0.236	11	69282,69287,69293,69305,69307,69308,69315,69318,69320,69321,69322	2060
Baddeleyite ()*	Baddeleyite	ZrO₂	1	0.236	12	69272,69281,69285,69286,69293,69295,69296,69306,69307,69319,69322,69325	238
Baryte ()*	Baryte	Ba(SO₄)	1	0.236	5	69288,69304,69311,69315,69321	11547
Bastnäsite-(Ce) ()*	Bastnäsite	Ce(CO₃)F	1	0.236	1	69306	304
Beryl ()*	Beryl	Be₃Al₂Si₆O₁₈	1	0.236	1	69306	4286
Boulangerite ()*	None	Pb₅Sb₄S₁₁	0.31	0.25	1	69288	843
Bournonite ()*	Bournonite	CuPbSbS₃	0.31	0.25	1	69288	1089
Britholite-(Ce) ()*	Apatite	(Ce,Ca)₅(SiO₄)₃(OH)	1	0.236	6	69305,69306,69307,69308,69318,69322	115
Calcite ()*	Calcite	Ca(CO₃)	1	0.236	9	69285,69293,69299,69300,69304,69311,69315,69321,69322	27770
Cancrinite ()*	Cancrinite	(Na,Ca, )₈(Al₆Si₆)O₂₄(CO₃,SO₄)₂·2H₂O	1	0.236	3	69281,69315,69320	232
Capranicaite ()*	Not in a structural group	KCaNaAl₄B₄Si₂O₁₈	1	0.236	1	69306	1
Carnotite ()*	None	K₂(UO₂)₂(VO₄)₂·3H₂O	1	0.095	2	69305,69327	1184
Celestine ()*	Baryte	Sr(SO₄)	0.31	0.25	2	69293,69304	1252
Chalcopyrite ()*	Chalcopyrite	CuFeS₂	0.31	0.25	3	69288,69293,69304	27198
Chrysocolla ()*	Allophane	(Cu_2-xAl_x)H_2-xSi₂O₅(OH)₄·nH₂O	0.31	0.25	1	69293	3531
Ciprianiite ()*	Hellandite	Ca₄(ThCa)Al(Be_0.5 _1.5)_Σ2[B₄Si₄O₂₂](OH)₂	0.4	0.4	1	69322	2
Clinohumite ()*	Humite	Mg₉(SiO₄)₄F₂	0.4	0.095	1	69315	236
Clinozoisite ()*	Clinozoisite Epidote	Ca₂Al₃[Si₂O₇][SiO₄]O(OH)	1	0.236	1	69306	1025
Cordierite ()*	Beryl	Mg₂Al₄Si₅O₁₈			2	69299,69302	1008
Corundum ()*	Corundum	Al₂O₃	0.4	0.095	1	69315	1797
Cristobalite ()*	Cristobalite	SiO₂	1	0.236	3	69299,69315,69320	453
Cryptomelane ()*	Coronadite	K(Mn⁴⁺₇Mn³⁺)O₁₆	0.4	0.4	1	69322	599
Cuprite ()*	Not in a structural group	Cu₂O	0.31	0.25	1	69288	2970
Cuspidine ()*	Wöhlerite	Ca₈(Si₂O₇)₂F₄	1	0.095	3	69285,69293,69305	67
Danburite ()*	Danburite	CaB₂Si₂O₈	1	0.236	8	69277,69287,69305,69306,69314,69316,69322,69325	148
Davyne ()*	Cancrinite Cancrinite-sodalite	[(Na,K)₆(SO₄)_0.5Cl][Ca₂Cl₂][(Si₆Al₆O₂₄)]	1	0.236	3	69314,69315,69322	17
Diopside ()*	Pyroxene	CaMgSi₂O₆	1	0.236	5	69272,69287,69302,69315,69320	4135
Dravite ()*	Tourmaline	NaMg₃Al₆(Si₆O₁₈)(BO₃)₃(OH)₃(OH)	1	0.095	1	69305	648
Ekanite ()*	Amorphous	Ca₂ThSi₈O₂₀	0.4	0.095	1	69315	16
Epidote ()*	Epidote Clinozoisite	Ca₂(Al₂Fe³⁺)[Si₂O₇][SiO₄]O(OH)	1	0.095	6	69281,69295,69306,69308,69315,69325	8173
Ettringite ()*	Ettringite	Ca₆Al₂(SO₄)₃(OH)₁₂·27H₂O			1	69299	93
Fantappièite ()*	Cancrinite Cancrinite-sodalite	[Na_82.5Ca₃₃K_16.5]_Σ=132(Si₉₉Al₉₉O₃₉₆)(SO₄)₃₃·6H₂O	0.31	0.25	1	69282	2
Farneseite ()*	Cancrinite-sodalite	Na₄₆Ca₁₀(Si₄₂Al₄₂O₁₆₈)(SO₄)₁₂·6H₂O	0.31	0.25	3	69282,69286,69295	4
Fayalite ()*	Olivine	Fe²⁺₂(SiO₄)	0.31	0.25	1	69293	371
Ferberite ()*	Columbite	Fe²⁺(WO₄)	1	0.236	1	69306	551
Ferri-mottanaite-(Ce) ()*	Hellandite	Ca₄Ce₂Fe³⁺(Be_1.5 _0.5)[Si₄B₄O₂₂]O₂	0.4	0.4	1	69305	1
Ferrierite-Mg ()*	Ferrierite	[Mg₂(K,Na)₂Ca_0.5](Si₂₉Al₇)O₇₂·18H₂O	1	0.236	2	69315,69321	34
Ferro-hornblende ()*	Amphibole	Ca₂(Fe²⁺₄Al)(Si₇Al)O₂₂(OH)₂	0.4	0.095	2	69293,69315	271
Fluorapatite ()*	Apatite	Ca₅(PO₄)₃F	1	0.236	9	69286,69293,69295,69306,69307,69308,69311,69315,69318	2740
Fluorite ()*	Fluorite	CaF₂	1	0.236	6	69293,69315,69318,69320,69322,69325	9617
Fluorophlogopite ()*	Mica	KMg₃(Si₃Al)O₁₀F₂	1	0.03	4	69274,69293,69307,69308	47
Forsterite ()*	Olivine	Mg₂(SiO₄)	1	0.095	3	69300,69314,69315	1188
Franzinite ()*	Cancrinite-sodalite	(Na,K)₃₀Ca₁₀(Si₃₀Al₃₀)O₁₂₀(SO₄)₁₀·2H₂O	1	0.095	4	69280,69282,69295,69305	9
Gadolinite-(Y) ()*	Gadolinite	Y₂Fe²⁺Be₂O₂(SiO₄)₂	0.4	0.4	2	69305,69315	163
Galena ()*	Rocksalt	PbS	0.31	0.25	1	69288	24243
Gehlenite ()*	Melilite	Ca₂Al(SiAl)O₇	1	0.095	2	69299,69305	114
Gismondine ()*	Gismondine	Ca₂(Si₄Al₄)O₁₆·8H₂O	0.31	0.25	2	69293,69299	128
Goethite ()*	Diaspore	FeO(OH)	1	0.095	5	69304,69307,69308,69311,69315	7437
Gold ()*	Copper	Au	0.31	0.25	1	69288	30554
Grossular ()*	Garnet	Ca₃Al₂(SiO₄)₃	0.4	0.095	5	69281,69285,69287,69293,69315	1544
Gypsum ()*	Gypsum	Ca(SO₄)·2H₂O	0.4	0.095	5	69285,69288,69293,69299,69315	6890
Haüyne ()*	Sodalite Cancrinite-sodalite	Na₃Ca(Si₃Al₃)O₁₂(SO₄)	0.4	0.095	7	69281,69283,69285,69293,69295,69300,69315	158
Hellandite-(Ce) ()*	Hellandite	(Ca,REE)₄Ce₂Al ₂(B₄Si₄O₂₂)(OH)₂	1	0.236	6	69277,69307,69308,69320,69322,69325	8
Helvine ()*	Sodalite Cancrinite-sodalite	Be₃Mn²⁺₄(SiO₄)₃S	1	0.236	4	69306,69307,69315,69325	237
Hematite ()*	Corundum	Fe₂O₃	1	0.236	16	69272,69281,69285,69286,69293,69295,69299,69300,69302,69306,69315,69316,69317,69318,69320,69325	14640
Hercynite ()*	Spinel	Fe²⁺Al₂O₄	1	0.236	1	69317	407
Homilite ()*	Gadolinite	Ca₂Fe²⁺B₂Si₂O₁₀	0.4	0.4	1	69322	8
Hydrobiotite ()*	Corrensite Clay	K(Mg,Fe²⁺)₆(Si,Al)₈O₂₀(OH)₄·nH₂O	0.31	0.25	1	69293	49
Hydrocalumite ()*	Hydrotalcite	Ca₄Al₂(OH)₁₂(Cl,CO₃,OH)₂·4H₂O			1	69299	30
Hydroxylapatite ()*	Apatite	Ca₅(PO₄)₃OH	0.4	0.4	1	69322	367
Ilmenite ()*	Corundum	Fe²⁺Ti⁴⁺O₃	0.31	0.25	2	69285,69293	5433
Jarosite ()*	Alunite	KFe³⁺₃(SO₄)₂(OH)₆	1	0.236	1	69314	2228
Jennite ()*	None	Ca₉(Si₃O₉)₂(OH)₆·8H₂O			1	69299	18
Kaliophilite ()*	None	KAlSiO₄			1	69300	8
Kalsilite ()*	None	KAlSiO₄			1	69300	49
Katoite ()*	Garnet	Ca₃Al₂(OH)₁₂			1	69299	9
Kottenheimite ()*	Ettringite	Ca₃Si(SO₄)₂(OH)₆·12H₂O	0.31	0.25	1	69293	3
Latiumite ()*	Latiumite	(Ca,K)₄(Si,Al)₅O₁₁(SO₄,CO₃)	0.31	0.25	2	69285,69293	7
Leucite ()*	Analcime	K(AlSi₂O₆)	1	0.095	10	69275,69276,69279,69293,69300,69307,69308,69309,69312,69315	233
Liottite ()*	Cancrinite-sodalite	Na₁₆Ca₈Si₁₈Al₁₈O₇₂(SO₄)₅Cl₄	0.31	0.25	4	69272,69280,69293,69296	7
Maghemite ()*	Spinel	(Fe³⁺_0.67 _0.33)Fe³⁺₂O₄	0.31	0.25	1	69293	229
Magnesio-hastingsite ()*	Amphibole	NaCa₂(Mg₄Fe³⁺)(Si₆Al₂)O₂₂(OH)₂	1	0.236	2	69293,69319	80
Magnesio-hornblende ()*	Amphibole	Ca₂(Mg₄Al)(Si₇Al)O₂₂(OH)₂	0.31	0.25	1	69293	238
Magnetite ()*	Spinel	Fe²⁺Fe³⁺₂O₄	1	0.236	21	69272,69277,69281,69285,69286,69293,69295,69296,69300,69304,69307,69308,69314,69315,69316,69317,69318,69319,69320,69322,69325	14899
Malachite ()*	Malachite	Cu₂(CO₃)(OH)₂	0.31	0.25	2	69288,69304	12537
Marcasite ()*	Marcasite	FeS₂	0.31	0.25	1	69289	5674
Molybdenite ()*	Molybdenite	MoS₂	0.4	0.095	1	69315	5800
Monazite-(Ce) ()*	Monazite	Ce(PO₄)	1	0.236	2	69315,69318	945
Mottanaite-(Ce) ()*	Hellandite	Ca₄Ce₂Al(Be_1.5 _0.5)_Σ2[B₄Si₄O₂₂]O₂	0.4	0.4	1	69322	2
Mullite ()*	None	Al_4+2xSi_2-2xO_10-x (x ≈ 0.4)			1	69302	78
Muscovite ()*	Mica Clay	KAl₂(Si₃Al)O₁₀(OH)₂	1	0.236	2	69307,69322	17380
Nepheline ()*	Tridymite	Na₃K(Al₄Si₄O₁₆)	1	0.236	6	69300,69307,69308,69315,69320,69325	884
Nosean ()*	Sodalite Cancrinite-sodalite	Na₈(Si₆Al₆)O₂₄(SO₄)·H₂O	1	0.236	6	69307,69308,69314,69320,69322,69323	75
Opal ()*	Amorphous	SiO₂·nH₂O	1	0.236	5	69286,69293,69299,69307,69308	2994
Osumilite-(Mg) ()*	Milarite	KMg₂Al₃(Al₂Si₁₀)O₃₀	1	0.236	3	69315,69317,69320	42
Oxy-dravite ()*	Tourmaline	Na(Al₂Mg)(Al₅Mg)(Si₆O₁₈)(BO₃)₃(OH)₃O	1	0.236	1	69314	24
Peprossiite-(Ce) ()*	None	(Ce,La)(Al₃O)_2/3B₄O₁₀	1	0.236	3	69306,69315,69318	3
Perovskite ()*	Perovskite	CaTiO₃	0.4	0.095	2	69289,69315	495
Perrierite-(Ce) ()*	Chevkinite	Ce₄MgFe³⁺₂Ti₂O₈(Si₂O₇)₂			1	69272	46
Phillipsite-K ()*	Harmotome	K₆(Si₁₀Al₆)O₃₂·12H₂O	0.4	0.25	3	69293,69315,69322	71
Phlogopite ()*	Mica Clay	KMg₃(AlSi₃O₁₀)(OH)₂	1	0.236	8	69285,69293,69295,69300,69316,69317,69320,69322	2273
Piergorite-(Ce) ()*	None	Ca₈Ce₂AlLiSi₆B₈O₃₆(OH)₂	1	0.236	2	69318,69322	2
Pitiglianoite ()*	Cancrinite Cancrinite-sodalite	K₂Na₆(Si₆Al₆)O₂₄(SO₄)·2H₂O	0.4	0.25	2	69286,69322	6
Pollucite ()*	Analcime	Cs(Si₂Al)O₆·nH₂O	1	0.236	3	69315,69320,69322	140
Portlandite ()*	Brucite	Ca(OH)₂			1	69299	51
Pseudobrookite ()*	Pseudobrookite	(Fe³⁺₂Ti)O₅	1	0.236	4	69300,69315,69317,69320	164
Pyrite ()*	Pyrite	FeS₂	0.4	0.095	4	69288,69289,69304,69315	39462
Pyrope ()*	Garnet	Mg₃Al₂(SiO₄)₃	0.4	0.095	1	69315	341
Quartz ()*	Quartz	SiO₂	1	0.236	9	69272,69285,69288,69293,69299,69314,69315,69321,69325	61156
Richterite ()*	Amphibole	Na(NaCa)Mg₅Si₈O₂₂(OH)₂	0.31	0.25	1	69293	148
Rutile ()*	Rutile	TiO₂	1	0.236	5	69315,69319,69320,69322,69325	5614
Sanidine ()*	Feldspar	K(AlSi₃O₈)	1	0.03	25	69271,69272,69274,69277,69280,69281,69283,69284,69285,69286,69293,69295,69296,69300,69302,69306,69307,69308,69314,69315,69316,69317,69318,69320,69322	598
Scheelite ()*	Scheelite	Ca(WO₄)	1	0.095	2	69306,69315	4894
Siderite ()*	Calcite	Fe(CO₃)	1	0.236	3	69288,69320,69321	6417
Sodalite ()*	Cancrinite-sodalite Sodalite	Na₄(Si₃Al₃)O₁₂Cl	1	0.236	13	69272,69282,69285,69287,69293,69300,69307,69308,69318,69319,69320,69322,69325	444
Sphalerite ()*	Sphalerite	ZnS	0.31	0.25	2	69288,69304	21482
Spinel ()*	Spinel	MgAl₂O₄	1	0.095	9	69272,69285,69286,69287,69293,69300,69305,69314,69315	1934
Stibnite ()*	Stibnite	Sb₂S₃	0.31	0.25	1	69288	3418
Stillwellite-(Ce) ()*	None	CeBSiO₅	1	0.236	5	69272,69306,69316,69322,69325	19
Stoppaniite ()*	Beryl	Fe³⁺₂Be₃Si₆O₁₈·H₂O	1	0.236	2	69306,69315	2
Strätlingite ()*	None	Ca₂Al(Si,Al)₂O₂(OH)₁₀·2.25H₂O			1	69299	11
Sulphur ()*	Sulphur	S	0.31	0.25	1	69289	2045
Tadzhikite-(Ce) ()*	Hellandite	Ca₄Ce₂Ti (B₄Si₄O₂₂)(OH)₂	1	0.236	2	69319,69322	14
Tetrahedrite-(Zn) ()*	Tetrahedrite	Cu₆(Cu₄Zn₂)Sb₄S₁₃	0.31	0.25	1	69288	5317
Thomsonite-Ca ()*	Thomsonite	NaCa₂(Al₅Si₅)O₂₀·6H₂O	0.31	0.25	1	69293	452
Thorianite ()*	Fluorite	ThO₂	1	0.236	3	69319,69320,69322	236
Thorite ()*	Zircon	Th(SiO₄)	1	0.236	10	69272,69277,69281,69305,69306,69315,69318,69320,69322,69325	1006
Titanite ()*	Titanite	CaTi(SiO₄)O	1	0.236	21	69272,69277,69281,69285,69286,69287,69293,69295,69296,69306,69307,69308,69314,69315,69316,69317,69318,69319,69320,69322,69325	4899
Tobermorite ()*	Tobermorite	Ca₄Si₆O₁₇(H₂O)₂·(Ca·3H₂O)			1	69299	114
Tridymite ()*	Tridymite	SiO₂	1	0.236	7	69286,69296,69299,69302,69315,69317,69320	458
Tuscanite ()*	None	KCa₆(Si,Al)₁₀O₂₂(SO₄,CO₃)₂(OH)·H₂O	0.4	0.25	5	69285,69287,69293,69295,69322	10
Uraninite ()*	Fluorite	UO₂	1	0.236	3	69315,69319,69322	2718
Vertumnite ()*	None	Ca₄Al₄Si₄O₆(OH)₂₄·3H₂O			1	69299	8
Vesuvianite ()*	Vesuvianite	(Ca,Na)₁₉(Al,Mg,Fe)₁₃(SiO₄)₁₀(Si₂O₇)₄(OH,F,O)₁₀	1	0.095	6	69281,69286,69287,69295,69309,69315	1395
Vicanite-(Ce) ()*	Okanoganite	(Ca,Ce,La,Th)₁₅As⁵⁺(As³⁺,Na)_0.5Fe³⁺_0.7Si₆B₄(O,F)₄₇	1	0.236	6	69306,69307,69316,69319,69320,69322	6
Vishnevite ()*	Cancrinite-sodalite Cancrinite	Na₈(Al₆Si₆)O₂₄(SO₄)·2H₂O	0.4	0.25	4	69282,69286,69295,69322	21
Vonsenite ()*	Ludwigite	Fe²⁺₂Fe³⁺O₂(BO₃)	1	0.236	15	69272,69285,69293,69296,69299,69306,69307,69308,69314,69315,69318,69319,69320,69322,69325	62
Wollastonite ()*	Wollastonite	CaSiO₃	1	0.236	9	69285,69287,69293,69295,69299,69300,69305,69309,69314	1247
Zircon ()*	Zircon	Zr(SiO₄)	1	0.236	18	69272,69277,69281,69285,69286,69287,69293,69295,69296,69305,69306,69307,69312,69314,69318,69320,69322,69325	5251
Zirconolite ()*	Zirconolite	(Ca,Y)Zr(Ti,Mg,Al)₂O₇	1	0.236	8	69284,69307,69315,69316,69318,69319,69320,69322	140

Locality Notes from all Ages at Locality:

Age ID	Locality Notes
Michelle_0093	Trachyte
Michelle_0093_a	Trachyte, see pg. 80, Fig. 6.
Michelle_0094	Trachyte, see pg. 80, Fig. 6.
Michelle_0095	Tephritic phonolite, see pg. 80, Fig. 6.
Michelle_0096	Latite, see pg. 80, Fig. 6.
Michelle_0097	Latite, see pg. 80, Fig. 6.
Michelle_0098	Phonolitic tephrite of the Bolsena activity, see pg. 80, Fig. 6.
Michelle_0099	Px-trachyte, see pg. 80, Fig. 6.
Michelle_0100	Leucite tephrite from what appears to be a seminary betwee Acquadependente and Onano, see pg. 80, Fig. 6.
Michelle_0101_a	Leucite basalt
Michelle_0102	Leucite trachyte, see pg. 80, Fig. 6.
Michelle_0103	Phonolitic tephrite, see pg. 80, Fig. 6.
Michelle_0104_a	Latite, see pg. 80, Fig. 6.
Michelle_0106_b	Trachyte, see pg. 80, Fig. 6.
Michelle_0107_c	Trachyte, see pg. 80, Fig. 6.
Michelle_0108_d	Trachyte, see pg. 80, Fig. 6. Dyke near Casa Gazette (Varekamp 1980)
Michelle_0109	Leucitite (dyke), see pg. 80, Fig. 6. Dyke near Casa Gazette (Varekamp 1980)
Michelle_0110	Leucite tephrite, see pg. 80, Fig. 6. From lava plateau of Benano (Varekamp 1980)
Michelle_0111	Vulsinite, see pg. 80, Fig. 6. Vulsinitic lava flow near Bolsena, Nassini Quarry (Varekamp 1980)
Michelle_0112_b	Latite, see pg. 80, Fig. 6.
Michelle_0113_b	Tephritic phonolite, see pg. 80, Fig. 6.
Michelle_0114	Tephrite, see pg. 80, Fig. 6.
Michelle_0115_a	Leucitic lava, see pg. 80, Fig. 6.
Michelle_0116	Leucite tephrite, see pg. 80, Fig. 6.
Michelle_0117	Tephritic phonolite, see pg. 80, Fig. 6.
Michelle_0118_c	Tephritic phonolite, see pg. 80, Fig. 6.
Michelle_0119_b	Tephritic phonolite, see pg. 80, Fig. 6.
Michelle_0120	Ol-trachybasalt, see pg. 80, Fig. 6.
Michelle_0121_a	Trachyte
Michelle_0122_b	Tephrite phonolite
Michelle_0123	Trachyte
Michelle_0124	Appears to be a stream or river
Michelle_0148	Leucitic lava
Michelle_0149	Trachyte, poggio translates to "Knoll"
Michelle_0150_c	Ignimbrite C of Locardi
Michelle_0151	(Tufo rosso a scorie nere auct.)
Michelle_0152	Black pozzolana (Ignimbrite b?)
Michelle_0153	Lc-Phonolite
Michelle_0154	Tephritic Lc-phonolite

41 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	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 ID	Age Notes
Michelle_0094	0.14	0.12	0.13±0.01	K-Ar	Age of trachyte		sanidine	VF4	Sanidine			252571	Bagnoregio, Viterbo Province, Lazio, Italy	Bagnoregio	Fornaseri (1985)	RDSIMF40_73	Age of trachyte
Michelle_0093	0.05	0.03	0.04±0.01	K-Ar	Age of trachyte		sanidine	TSL	Sanidine			286302	Bolsena, Viterbo Province, Lazio, Italy	San Lorenzo Nuovo	Fornaseri (1985)	RDSIMF40_73	Age of trachyte
Michelle_0093_a	0.05	0.03	0.04±0.01	K-Ar	Age of trachyte		sanidine	TSL	Sanidine			286302	Bolsena, Viterbo Province, Lazio, Italy	San Lorenzo Nuovo	Fornaseri (1985)	RDSIMF40_73	Age of trachyte
Michelle_0095	0.18	0.12	0.15±0.03	K-Ar	Age of tephritic phonolite		leucite	BS26	Leucite			286302	Bolsena, Viterbo Province, Lazio, Italy	Proceno	Fornaseri (1985)	RDSIMF40_73	Age of tephritic phonolite
Michelle_0096	0.22	0.14	0.18±0.04	K-Ar	Age of latite			VS36				286302	Bolsena, Viterbo Province, Lazio, Italy	Vulci	Fornaseri (1985)	RDSIMF40_73	Age of latite
Michelle_0097	0.31	0.13	0.22±0.09	K-Ar	Age of latite			VS38				286302	Bolsena, Viterbo Province, Lazio, Italy	Trc Crognola	Fornaseri (1985)	RDSIMF40_73	Age of latite
Michelle_0099	0.24	0.2	0.22±0.02	K-Ar	Age of Px-trachyte		sanidine	S	Sanidine			286302	Bolsena, Viterbo Province, Lazio, Italy	Fgio Cercone	Fornaseri (1985)	RDSIMF40_73	Age of Px-trachyte
Michelle_0100	0.307	0.247	0.277±0.03	K-Ar	Age of Leucite tephrite		leucite	L	Leucite			286302	Bolsena, Viterbo Province, Lazio, Italy	Seminario	Fornaseri (1985)	RDSIMF40_73	Age of Leucite tephrite
Michelle_0101_a	0.27	0.27	0.27	K-Ar	Age of Leucite basalt		leucite	KA457	Leucite			286302	Bolsena, Viterbo Province, Lazio, Italy	Acquapendente	Fornaseri (1985)	RDSIMF40_73	Age of Leucite basalt
Michelle_0102	0.34	0.28	0.31±0.03	K-Ar	Age of Leucite trachyte		leucite	BS31	Leucite			286302	Bolsena, Viterbo Province, Lazio, Italy	C. Gallicella	Fornaseri (1985)	RDSIMF40_73	Age of Leucite trachyte
Michelle_0103	0.37	0.25	0.31±0.06	K-Ar	Age of Phonolitic tephrite		leucite	VF8	Leucite			286302	Bolsena, Viterbo Province, Lazio, Italy	Fle Carpine	Fornaseri (1985)	RDSIMF40_73	Age of Phonolitic tephrite
Michelle_0104_a	0.3255	0.3065	0.316±0.0095	K-Ar	Age of latite		biotite	PSQ1				286302	Bolsena, Viterbo Province, Lazio, Italy	M. Calvo	Fornaseri (1985)	RDSIMF40_73	Age of latite
Michelle_0106_b	0.33	0.33	0.33	K-Ar	Age of trachyte		sanidine	KA406	Sanidine			286302	Bolsena, Viterbo Province, Lazio, Italy	San Lorenzo Nuovo	Fornaseri (1985)	RDSIMF40_73	Age of trachyte, from CA6_342
Michelle_0107_c	0.344	0.328	0.336±0.008	K-Ar	Age of trachyte		biotite	35A				286302	Bolsena, Viterbo Province, Lazio, Italy	San Lorenzo Nuovo	Fornaseri (1985)	RDSIMF40_73	Age of trachyte, from MSGI25
Michelle_0108_d	0.37	0.31	0.34±0.03	K-Ar	Age of trachyte		leucite	T12	Leucite			286302	Bolsena, Viterbo Province, Lazio, Italy	San Lorenzo Nuovo	Fornaseri (1985)	RDSIMF40_73	Age of trachyte, from BV43_489
Michelle_0109	0.41	0.29	0.35±0.06	K-Ar	Age of dyke		leucite	T13	Leucite			286302	Bolsena, Viterbo Province, Lazio, Italy	Casa Gazzetta	Fornaseri (1985)	RDSIMF40_73	Age of leucitite dyke
Michelle_0110	0.39	0.31	0.35±0.04	K-Ar	Age of leucite tephrite		leucite	T10	Leucite			286302	Bolsena, Viterbo Province, Lazio, Italy	Benano	Fornaseri (1985)	RDSIMF40_73	Age of leucite tephrite
Michelle_0111	0.42	0.3	0.36±0.06	K-Ar	Age of vulsinite			T11				286302	Bolsena, Viterbo Province, Lazio, Italy	Bolsena (Nassini Quarry)	Fornaseri (1985)	RDSIMF40_73	Age of vulsinite
Michelle_0112_b	0.56	0.26	0.41±0.15	K-Ar	Age of trachyte			VS65				286302	Bolsena, Viterbo Province, Lazio, Italy	Monte Calvo	Fornaseri (1985)	RDSIMF40_73	Age of trachyte
Michelle_0113_b	0.43	0.39	0.41±0.02	K-Ar	Age of tephritic phonolite		leucite	BS7	Leucite			286302	Bolsena, Viterbo Province, Lazio, Italy	Acquapendente	Fornaseri (1985)	RDSIMF40_73	Age of tephritic phonolite
Michelle_0114	0.423	0.403	0.413±0.01	K-Ar	Age of tephrite			VUL2				286302	Bolsena, Viterbo Province, Lazio, Italy	F. Lente	Fornaseri (1985)	RDSIMF40_73	Age of tephrite
Michelle_0115_a	0.431	0.431	0.431	K-Ar	Age of leucitic lava		leucite	KA854	Leucite			286302	Bolsena, Viterbo Province, Lazio, Italy	C. Buonviaggio	Fornaseri (1985)	RDSIMF40_73	Age of leucitic lava
Michelle_0116	0.54	0.44	0.49±0.05	K-Ar	Age of leucite tephrite		leucite	T9	Leucite			286302	Bolsena, Viterbo Province, Lazio, Italy	Le Velette	Fornaseri (1985)	RDSIMF40_73	Age of leucite tephrite
Michelle_0117	0.61	0.57	0.59±0.02	K-Ar	Age of tephritic phonolite		leucite	BS21	Leucite			286302	Bolsena, Viterbo Province, Lazio, Italy	C. Torricella	Fornaseri (1985)	RDSIMF40_73	Age of tephritic phonolite
Michelle_0118_c	0.66	0.6	0.63±0.03	K-Ar	Age of tephritic phonolite		leucite	BS14	Leucite			286302	Bolsena, Viterbo Province, Lazio, Italy	Acquapendente	Fornaseri (1985)	RDSIMF40_73	Age of tephritic phonolite
Michelle_0119_b	0.69	0.63	0.66±0.03	K-Ar	Age of tephritic phonolite		leucite	VF5	Leucite			286302	Bolsena, Viterbo Province, Lazio, Italy	C. Buonviaggio	Fornaseri (1985)	RDSIMF40_73	Age of tephritic phonolite
Michelle_0120	0.86	0.78	0.82±0.04	K-Ar	Age of ol-trachybasalt			TA7				286302	Bolsena, Viterbo Province, Lazio, Italy	Torre Alfina	Fornaseri (1985)	RDSIMF40_73	Age of ol-trachybasalt
Michelle_0121_a	0.42	0.38	0.4±0.02	K-Ar	Age of trachyte		sanidine	VS44	Sanidine			286302	Bolsena, Viterbo Province, Lazio, Italy	La Rocca	Fornaseri (1985)	RDSIMF40_73	Age of trachyte
Michelle_0122_b	0.46	0.38	0.42±0.04	K-Ar	Age of tephritic phonolite		sanidine	VS47C	Sanidine			286302	Bolsena, Viterbo Province, Lazio, Italy	La Rocca	Fornaseri (1985)	RDSIMF40_73	Age of tephritic phonolite
Michelle_0123	0.63	0.59	0.61±0.02	K-Ar	Age of trachyte		sanidine	VS31A	Sanidine			286302	Bolsena, Viterbo Province, Lazio, Italy	Fontanile Inguatta-pagnotte	Fornaseri (1985)	RDSIMF40_73	Age of trachyte
Michelle_0124	0.92	0.84	0.88±0.04	K-Ar			sanidine	VS50	Sanidine			286302	Bolsena, Viterbo Province, Lazio, Italy	T. Arrone	Fornaseri (1985)	RDSIMF40_73
Michelle_0098	0.31	0.25	0.28±0.03	K-Ar	Age of phonolitic tephrite		leucite	P164	Leucite			239471	Làtera Volcano, Viterbo Province, Lazio, Italy	Latera	Fornaseri (1985)	RDSIMF40_73	Age of phonolitic tephrite from the Bolsena lava flows
Michelle_0149	0.292	0.236	0.264±0.028	K-Ar	Age of trachyte		sanidine	10	Sanidine			5749	Vico Volcanic Complex (Vico Lake), Viterbo Province, Lazio, Italy	Poggio Cavaliere	Fornaseri (1985)	RDSIMF40_73	Age of trachyte
Michelle_0150_c	0.46	0.38	0.420±0.04	K-Ar	Age of Ignimbrite C of Locardi		sanidine	VS47C	Sanidine			5749	Vico Volcanic Complex (Vico Lake), Viterbo Province, Lazio, Italy	La Rocca	Fornaseri (1985)	RDSIMF40_73	Age of Ignimbrite C of Locardi
Michelle_0151	0.64	0.4	0.520±0.12	K-Ar			sanidine	9	Sanidine			5749	Vico Volcanic Complex (Vico Lake), Viterbo Province, Lazio, Italy	C.le Umilta	Fornaseri (1985)	RDSIMF40_73
Michelle_0152	0.86	0.42	0.640±0.22	K-Ar			sanidine	8	Sanidine			5749	Vico Volcanic Complex (Vico Lake), Viterbo Province, Lazio, Italy	C.le Servelli	Fornaseri (1985)	RDSIMF40_73
Michelle_0153	0.91	0.49	0.700±0.21	K-Ar	Age of lc-phonolite		sanidine	7	Sanidine			5749	Vico Volcanic Complex (Vico Lake), Viterbo Province, Lazio, Italy	San Rocco	Fornaseri (1985)	RDSIMF40_73	Age of lc-phonolite
Michelle_0154	1	0.64	0.820±0.18	K-Ar	Age of tephritic lc-phonolite		sanidine	6	Sanidine			5749	Vico Volcanic Complex (Vico Lake), Viterbo Province, Lazio, Italy	San Martino	Fornaseri (1985)	RDSIMF40_73	Age of tephritic lc-phonolite
Be-00010	0.4	0.4	0.4			high				Stoppaniite	Be	2081	Vetralla, Vico Volcanic Complex (Vico Lake), Viterbo Province, Lazio, Italy		Fornaseri (1985)	RDSIMF40_73
Michelle_0148	0.095	0.095	0.095	K-Ar	Age of leucitic lava		leucite	KA853	Leucite			2081	Vetralla, Vico Volcanic Complex (Vico Lake), Viterbo Province, Lazio, Italy	Vetralla	Fornaseri (1985)	RDSIMF40_73	Age of leucitic lava
Grew_Li_2019_0086	0.4	0.4	0.4							Piergorite-(Ce)		2080	Tre Croci, Vetralla, Vico Volcanic Complex (Vico Lake), Viterbo Province, Lazio, Italy	Tre Croci, Vico volcanic complex, Viterbo Province, Latium, Italy	Fornaseri (1985)	RSIMP40_73

Sample	Source Locality	Reference URL
R061113	Bolsena, Viterbo Province, Lazio, Italy	https://rruff.info/R061113
R061100	Vico Volcanic Complex (Vico Lake), Viterbo Province, Lazio, Italy	https://rruff.info/R061100
R110144	Capranica, Vico Volcanic Complex (Vico Lake), Viterbo Province, Lazio, Italy	https://rruff.info/R110144
R061013	Campo Padella, Capranica, Vico Volcanic Complex (Vico Lake), Viterbo Province, Lazio, Italy	https://rruff.info/R061013

All locality data graciously provided by mindat.org

All age data...