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Spizzicatore Hill, Allumiere, Tolfa Mts District, Metropolitan City of Rome Capital, Lazio, Italyi
Regional Level Types
Spizzicatore HillHill
Allumiere- not defined -
Tolfa Mts DistrictDistrict
Metropolitan City of Rome CapitalMetropolitan City
LazioAdministrative Region
ItalyCountry

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Key
Latitude & Longitude (WGS84):
42° 10' 7'' North , 11° 50' 33'' East
Latitude & Longitude (decimal):
Locality type:
Nearest Settlements:
PlacePopulationDistance
Allumiere3,603 (2014)5.2km
Aurelia1,248 (2014)5.6km
La Bianca390 (2014)5.7km
Tolfa4,421 (2014)7.7km
Civitavecchia47,543 (2014)9.2km
Name(s) in local language(s):
Colle dello Spizzicatore, Allumiere, Distretto dei Monti della Tolfa, Roma, Italia


The Spizzicatore hill (Colle dello Spizzicatore) is partly occupied by a quarry, where the ignimbrite rocks are occasionally extracted for road construction and servicing. Several types of rocks occur in this pyroclastic deposit (known in literature as “tufi caotici"): there are fragments of ignimbrites which show a glassy groundmass with K feldspar (sanidine), labradoritic plagioclase, biotite, ortho- and clino-pyroxene as main phenocrystals. Other holocrystalline tephra have a syenitic appearance and are constituted by dominant K feldspar (sanidine) and plagioclase, with minor pyroxene and biotite; common accessories are rutile and zircon (Negretti, 1962).

Cordierite ha been found in blocks with a very fine-grained holocrystalline texture. Cordierite crystal cores often enclose euhedral spinel, ilmenite, and quartz, often coexisting with monazite and pyrrhotite droplets. The ignimbrite can include volcanic rocks in which one can find different minerals. The fine-grained matrix is composed of plagioclase, abundant graphite flakes, accessory minerals (ilmenite) and numerous vugs and vesicles coated with smectite group minerals.

[GPS coordinates to be confirmed.]

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


13 valid minerals.

Detailed Mineral List:

'Albite-Anorthite Series'
Reference: Negretti, G.C. (1962): Osservazioni vulcanologiche e petrografiche sui tufi caotici e le ignimbriti dei Monti del Sassetto (Tolfa). Rend. Soc. Mineral. Ital., 19, 171-187; Della Ventura, G., Bellatreccia, F., Cámara, F., Oberti, R., Lorand, J.P., Parodi, G.C., Carlier, G., Di Domenico, D. (2006): Carbon-bearing cordierite from Allumiere (Tolfa volcanic center, Latium, Italy): occurrence, crystal-structure and FTIR microspectroscopy. Periodico di Mineralogia, 75, 113–126.
Almandine
Formula: Fe2+3Al2(SiO4)3
Reference: Della Ventura, G., Bellatreccia, F., Cámara, F., Oberti, R., Lorand, J.P., Parodi, G.C., Carlier, G., Di Domenico, D. (2006): Carbon-bearing cordierite from Allumiere (Tolfa volcanic center, Latium, Italy): occurrence, crystal-structure and FTIR microspectroscopy. Periodico di Mineralogia, 75, 113–126.
'Amphibole Supergroup'
Formula: AX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Reference: Della Ventura, G., Bellatreccia, F., Cámara, F., Oberti, R., Lorand, J.P., Parodi, G.C., Carlier, G., Di Domenico, D. (2006): Carbon-bearing cordierite from Allumiere (Tolfa volcanic center, Latium, Italy): occurrence, crystal-structure and FTIR microspectroscopy. Periodico di Mineralogia, 75, 113–126.
Andradite
Formula: Ca3Fe3+2(SiO4)3
Reference: Della Ventura, G., Bellatreccia, F., Cámara, F., Oberti, R., Lorand, J.P., Parodi, G.C., Carlier, G., Di Domenico, D. (2006): Carbon-bearing cordierite from Allumiere (Tolfa volcanic center, Latium, Italy): occurrence, crystal-structure and FTIR microspectroscopy. Periodico di Mineralogia, 75, 113–126.
Andradite var: Melanite
Formula: Ca3Fe3+2(SiO4)3
Reference: Della Ventura, G., Bellatreccia, F., Cámara, F., Oberti, R., Lorand, J.P., Parodi, G.C., Carlier, G., Di Domenico, D. (2006): Carbon-bearing cordierite from Allumiere (Tolfa volcanic center, Latium, Italy): occurrence, crystal-structure and FTIR microspectroscopy. Periodico di Mineralogia, 75, 113–126.
'Biotite'
Formula: K(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
Reference: Negretti, G.C. (1962): Osservazioni vulcanologiche e petrografiche sui tufi caotici e le ignimbriti dei Monti del Sassetto (Tolfa). Rend. Soc. Mineral. Ital., 19, 171-187; Della Ventura, G., Bellatreccia, F., Cámara, F., Oberti, R., Lorand, J.P., Parodi, G.C., Carlier, G., Di Domenico, D. (2006): Carbon-bearing cordierite from Allumiere (Tolfa volcanic center, Latium, Italy): occurrence, crystal-structure and FTIR microspectroscopy. Periodico di Mineralogia, 75, 113–126.
Cordierite
Formula: (Mg,Fe)2Al3(AlSi5O18)
Reference: Della Ventura, G., Bellatreccia, F., Cámara, F., Oberti, R., Lorand, J.P., Parodi, G.C., Carlier, G., Di Domenico, D. (2006): Carbon-bearing cordierite from Allumiere (Tolfa volcanic center, Latium, Italy): occurrence, crystal-structure and FTIR microspectroscopy. Periodico di Mineralogia, 75, 113–126.
Graphite
Formula: C
Reference: Della Ventura, G., Bellatreccia, F., Cámara, F., Oberti, R., Lorand, J.P., Parodi, G.C., Carlier, G., Di Domenico, D. (2006): Carbon-bearing cordierite from Allumiere (Tolfa volcanic center, Latium, Italy): occurrence, crystal-structure and FTIR microspectroscopy. Periodico di Mineralogia, 75, 113–126.
Ilmenite
Formula: Fe2+TiO3
Reference: Della Ventura, G., Bellatreccia, F., Cámara, F., Oberti, R., Lorand, J.P., Parodi, G.C., Carlier, G., Di Domenico, D. (2006): Carbon-bearing cordierite from Allumiere (Tolfa volcanic center, Latium, Italy): occurrence, crystal-structure and FTIR microspectroscopy. Periodico di Mineralogia, 75, 113–126.
'Monazite'
Reference: Della Ventura, G., Bellatreccia, F., Cámara, F., Oberti, R., Lorand, J.P., Parodi, G.C., Carlier, G., Di Domenico, D. (2006): Carbon-bearing cordierite from Allumiere (Tolfa volcanic center, Latium, Italy): occurrence, crystal-structure and FTIR microspectroscopy. Periodico di Mineralogia, 75, 113–126.
'Pyroxene Group'
Reference: Negretti, G.C. (1962): Osservazioni vulcanologiche e petrografiche sui tufi caotici e le ignimbriti dei Monti del Sassetto (Tolfa). Rend. Soc. Mineral. Ital., 19, 171-187; Della Ventura, G., Bellatreccia, F., Cámara, F., Oberti, R., Lorand, J.P., Parodi, G.C., Carlier, G., Di Domenico, D. (2006): Carbon-bearing cordierite from Allumiere (Tolfa volcanic center, Latium, Italy): occurrence, crystal-structure and FTIR microspectroscopy. Periodico di Mineralogia, 75, 113–126.
Pyrrhotite
Formula: Fe7S8
Reference: Della Ventura, G., Bellatreccia, F., Cámara, F., Oberti, R., Lorand, J.P., Parodi, G.C., Carlier, G., Di Domenico, D. (2006): Carbon-bearing cordierite from Allumiere (Tolfa volcanic center, Latium, Italy): occurrence, crystal-structure and FTIR microspectroscopy. Periodico di Mineralogia, 75, 113–126.
Quartz
Formula: SiO2
Reference: Della Ventura, G., Bellatreccia, F., Cámara, F., Oberti, R., Lorand, J.P., Parodi, G.C., Carlier, G., Di Domenico, D. (2006): Carbon-bearing cordierite from Allumiere (Tolfa volcanic center, Latium, Italy): occurrence, crystal-structure and FTIR microspectroscopy. Periodico di Mineralogia, 75, 113–126.
Rutile
Formula: TiO2
Reference: Negretti, G.C. (1962): Osservazioni vulcanologiche e petrografiche sui tufi caotici e le ignimbriti dei Monti del Sassetto (Tolfa). Rend. Soc. Mineral. Ital., 19, 171-187; Della Ventura, G., Bellatreccia, F., Cámara, F., Oberti, R., Lorand, J.P., Parodi, G.C., Carlier, G., Di Domenico, D. (2006): Carbon-bearing cordierite from Allumiere (Tolfa volcanic center, Latium, Italy): occurrence, crystal-structure and FTIR microspectroscopy. Periodico di Mineralogia, 75, 113–126.
Sanidine
Formula: K(AlSi3O8)
Reference: Negretti, G.C. (1962): Osservazioni vulcanologiche e petrografiche sui tufi caotici e le ignimbriti dei Monti del Sassetto (Tolfa). Rend. Soc. Mineral. Ital., 19, 171-187; Della Ventura, G., Bellatreccia, F., Cámara, F., Oberti, R., Lorand, J.P., Parodi, G.C., Carlier, G., Di Domenico, D. (2006): Carbon-bearing cordierite from Allumiere (Tolfa volcanic center, Latium, Italy): occurrence, crystal-structure and FTIR microspectroscopy. Periodico di Mineralogia, 75, 113–126.
'Smectite Group'
Formula: A0.3D2-3[T4O10]Z2 · nH2O
Reference: Della Ventura, G., Bellatreccia, F., Cámara, F., Oberti, R., Lorand, J.P., Parodi, G.C., Carlier, G., Di Domenico, D. (2006): Carbon-bearing cordierite from Allumiere (Tolfa volcanic center, Latium, Italy): occurrence, crystal-structure and FTIR microspectroscopy. Periodico di Mineralogia, 75, 113–126.
Spinel
Formula: MgAl2O4
Reference: Della Ventura, G., Bellatreccia, F., Cámara, F., Oberti, R., Lorand, J.P., Parodi, G.C., Carlier, G., Di Domenico, D. (2006): Carbon-bearing cordierite from Allumiere (Tolfa volcanic center, Latium, Italy): occurrence, crystal-structure and FTIR microspectroscopy. Periodico di Mineralogia, 75, 113–126.
Staurolite
Formula: Fe2+2Al9Si4O23(OH)
Reference: Della Ventura, G., Bellatreccia, F., Cámara, F., Oberti, R., Lorand, J.P., Parodi, G.C., Carlier, G., Di Domenico, D. (2006): Carbon-bearing cordierite from Allumiere (Tolfa volcanic center, Latium, Italy): occurrence, crystal-structure and FTIR microspectroscopy. Periodico di Mineralogia, 75, 113–126.
Titanite
Formula: CaTi(SiO4)O
Reference: Della Ventura, G., Bellatreccia, F., Cámara, F., Oberti, R., Lorand, J.P., Parodi, G.C., Carlier, G., Di Domenico, D. (2006): Carbon-bearing cordierite from Allumiere (Tolfa volcanic center, Latium, Italy): occurrence, crystal-structure and FTIR microspectroscopy. Periodico di Mineralogia, 75, 113–126.
Zircon
Formula: Zr(SiO4)
Reference: Negretti, G.C. (1962): Osservazioni vulcanologiche e petrografiche sui tufi caotici e le ignimbriti dei Monti del Sassetto (Tolfa). Rend. Soc. Mineral. Ital., 19, 171-187; Della Ventura, G., Bellatreccia, F., Cámara, F., Oberti, R., Lorand, J.P., Parodi, G.C., Carlier, G., Di Domenico, D. (2006): Carbon-bearing cordierite from Allumiere (Tolfa volcanic center, Latium, Italy): occurrence, crystal-structure and FTIR microspectroscopy. Periodico di Mineralogia, 75, 113–126.

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
Graphite1.CB.05aC
Group 2 - Sulphides and Sulfosalts
Pyrrhotite2.CC.10Fe7S8
Group 4 - Oxides and Hydroxides
Ilmenite4.CB.05Fe2+TiO3
Quartz4.DA.05SiO2
Rutile4.DB.05TiO2
Spinel4.BB.05MgAl2O4
Group 9 - Silicates
Almandine9.AD.25Fe2+3Al2(SiO4)3
Andradite9.AD.25Ca3Fe3+2(SiO4)3
var: Melanite9.AD.25Ca3Fe3+2(SiO4)3
Cordierite9.CJ.10(Mg,Fe)2Al3(AlSi5O18)
Sanidine9.FA.30K(AlSi3O8)
Staurolite9.AF.30Fe2+2Al9Si4O23(OH)
Titanite9.AG.15CaTi(SiO4)O
Zircon9.AD.30Zr(SiO4)
Unclassified Minerals, Rocks, etc.
'Albite-Anorthite Series'-
'Amphibole Supergroup'-AX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
'Biotite'-K(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
'Monazite'-
'Pyroxene Group'-
'Smectite Group'-A0.3D2-3[T4O10]Z2 · nH2O

List of minerals arranged by Dana 8th Edition classification

Group 1 - NATIVE ELEMENTS AND ALLOYS
Semi-metals and non-metals
Graphite1.3.6.2C
Group 2 - SULFIDES
AmXp, with m:p = 1:1
Pyrrhotite2.8.10.1Fe7S8
Group 4 - SIMPLE OXIDES
A2X3
Ilmenite4.3.5.1Fe2+TiO3
AX2
Rutile4.4.1.1TiO2
Group 7 - MULTIPLE OXIDES
AB2X4
Spinel7.2.1.1MgAl2O4
Group 51 - NESOSILICATES Insular SiO4 Groups Only
Insular SiO4 Groups Only with cations in [6] and >[6] coordination
Almandine51.4.3a.2Fe2+3Al2(SiO4)3
Andradite51.4.3b.1Ca3Fe3+2(SiO4)3
Insular SiO4 Groups Only with cations in >[6] coordination
Zircon51.5.2.1Zr(SiO4)
Group 52 - NESOSILICATES Insular SiO4 Groups and O,OH,F,H2O
Insular SiO4 Groups and O, OH, F, and H2O with cations in [4] and >[4] coordination
Staurolite52.2.3.1Fe2+2Al9Si4O23(OH)
Insular SiO4 Groups and O, OH, F, and H2O with cations in [6] and/or >[6] coordination
Titanite52.4.3.1CaTi(SiO4)O
Group 61 - CYCLOSILICATES Six-Membered Rings
Six-Membered Rings with Al substituted rings
Cordierite61.2.1.1(Mg,Fe)2Al3(AlSi5O18)
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz75.1.3.1SiO2
Group 76 - TECTOSILICATES Al-Si Framework
Al-Si Framework with Al-Si frameworks
Sanidine76.1.1.2K(AlSi3O8)
Unclassified Minerals, Mixtures, etc.
'Albite-Anorthite Series'-
'Amphibole Supergroup'-AX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Andradite
var: Melanite
-Ca3Fe3+2(SiO4)3
'Biotite'-K(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
'Monazite'-
'Pyroxene Group'-
'Smectite Group'-A0.3D2-3[T4O10]Z2 · nH2O

List of minerals for each chemical element

HHydrogen
H StauroliteFe22+Al9Si4O23(OH)
H BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
H Amphibole SupergroupAX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
H Smectite GroupA0.3D2-3[T4O10]Z2 · nH2O
CCarbon
C GraphiteC
OOxygen
O Cordierite(Mg,Fe)2Al3(AlSi5O18)
O AlmandineFe32+Al2(SiO4)3
O StauroliteFe22+Al9Si4O23(OH)
O BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
O SpinelMgAl2O4
O IlmeniteFe2+TiO3
O QuartzSiO2
O TitaniteCaTi(SiO4)O
O SanidineK(AlSi3O8)
O ZirconZr(SiO4)
O Amphibole SupergroupAX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
O Andradite (var: Melanite)Ca3Fe23+(SiO4)3
O Smectite GroupA0.3D2-3[T4O10]Z2 · nH2O
O RutileTiO2
O AndraditeCa3Fe23+(SiO4)3
FFluorine
F BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
F Amphibole SupergroupAX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
MgMagnesium
Mg Cordierite(Mg,Fe)2Al3(AlSi5O18)
Mg BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
Mg SpinelMgAl2O4
AlAluminium
Al Cordierite(Mg,Fe)2Al3(AlSi5O18)
Al AlmandineFe32+Al2(SiO4)3
Al StauroliteFe22+Al9Si4O23(OH)
Al BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
Al SpinelMgAl2O4
Al SanidineK(AlSi3O8)
Al Amphibole SupergroupAX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
SiSilicon
Si Cordierite(Mg,Fe)2Al3(AlSi5O18)
Si AlmandineFe32+Al2(SiO4)3
Si StauroliteFe22+Al9Si4O23(OH)
Si BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
Si QuartzSiO2
Si TitaniteCaTi(SiO4)O
Si SanidineK(AlSi3O8)
Si ZirconZr(SiO4)
Si Amphibole SupergroupAX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Si Andradite (var: Melanite)Ca3Fe23+(SiO4)3
Si AndraditeCa3Fe23+(SiO4)3
SSulfur
S PyrrhotiteFe7S8
ClChlorine
Cl Amphibole SupergroupAX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
KPotassium
K BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
K SanidineK(AlSi3O8)
CaCalcium
Ca TitaniteCaTi(SiO4)O
Ca Andradite (var: Melanite)Ca3Fe23+(SiO4)3
Ca AndraditeCa3Fe23+(SiO4)3
TiTitanium
Ti IlmeniteFe2+TiO3
Ti TitaniteCaTi(SiO4)O
Ti Amphibole SupergroupAX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Ti RutileTiO2
FeIron
Fe Cordierite(Mg,Fe)2Al3(AlSi5O18)
Fe AlmandineFe32+Al2(SiO4)3
Fe StauroliteFe22+Al9Si4O23(OH)
Fe BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
Fe IlmeniteFe2+TiO3
Fe Andradite (var: Melanite)Ca3Fe23+(SiO4)3
Fe PyrrhotiteFe7S8
Fe AndraditeCa3Fe23+(SiO4)3
ZrZirconium
Zr ZirconZr(SiO4)

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Negretti, G.C. (1962): Osservazioni vulcanologiche e petrografiche sui tufi caotici e le ignimbriti dei Monti del Sassetto (Tolfa). Rend. Soc. Mineral. Ital., 19, 171-187.
Della Ventura, G., Bellatreccia, F., Cámara, F., Oberti, R., Lorand, J.P., Parodi, G.C., Carlier, G., Di Domenico, D. (2006): Carbon-bearing cordierite from Allumiere (Tolfa volcanic center, Latium, Italy): occurrence, crystal-structure and FTIR microspectroscopy. Periodico di Mineralogia, 75, 113–126. [http://www.dst.uniroma1.it/riviste/permin/testi/V75/14.pdf]

Other Regions, Features and Areas containg this locality

Eurasian PlateTectonic Plate
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