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Palagonia, Northern Iblean plateau, Catania Province, Sicily, Italyi
Regional Level Types
Palagonia- not defined -
Northern Iblean plateauPlateau
Catania ProvinceProvince
SicilyAutonomous Region
ItalyCountry

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Name(s) in local language(s):Palagonia, Plateau Nord Ibleo, Provincia di Catania, Sicilia, Italia
Largest Settlements:
PlacePopulation
Palagonia16,227 (2014)


Basaltic breccia.

The locality of Palagonia has given the name to palagonite (Sartorious von Waltershausen, 1853; Des Cloizeaux, 1862), an alteration product around the outer rind of basaltic glasses subjected to the action of water. Its structure and especially its chemical composition vary significantly from one sample to another. There is generally a very distinct border between the pristine glass, or "sideromelane", and the alteration rind; observed by optical microscopy, the latter is characterised by it orange-yellow colouration in natural light and sometimes by slight birefringence in polarized light, while the glass itself is isotropic and honey-coloured. According to recent studies, palagonite may be classified into two broad categories. The first is characterised by an amorphous gel, suggesting to many authors that it results from simple hydration of the glass. In other cases it consists of smectitic clay minerals, crystallized to some extent. Palagonite may form by coprecipitation of glass constituent elements that are initially solubilised, as generally observed for non-zeolitic samples. Palagonite may also form by interdiffusion processes in a residual hydrated glass: this is generally the case for zeolitic samples (Crovisier et al., 1987; Crovisier et al., 2003).


Beside the well-known outcrop at the foot of Monte Caliella, there are other outcrops of volcanics in the municipal territory of Palagonia, but systematic researches for minerals are often prevented by the presence of cultivated lands and highly urbanised areas. Di Franco (1927) described crystals of fluorine-free apophyllite, i.e. hydroxyapophyllite-(K), in basalt cavities in association with "phillipsite" and "herschelite" (presently chabazite-Na). The presence of apophyllite in the Palagonia area, in association with "phillipsite, analcime, and vivianite, was already reported at Contrada Portelle, a disused toponym mentioned by Gemmellaro (1856). Sturiale (1963) described "phillipsite" (now considered phillipsite-Na), epistilbite, "herschelite" (presently chabazite-Na), and analcime from effusive lavas and hyaloclastites evidenced by water well drilling at Contrada Santa Febbronia, about 3 km NE of Palagonia.


NB: The phase which occurres at Monte Caliella is most probably tetranatrolite which in this page is listed as gonnardite.

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Standard Detailed Strunz Dana Chemical Elements

Mineral List

Mineral list contains entries from the region specified including sub-localities

22 valid minerals. 1 erroneous literature entry.

Rock Types Recorded

Note: this is a very new system on mindat.org and data is currently VERY limited. Please bear with us while we work towards adding this information!

Rock list contains entries from the region specified including sub-localities

Select Rock List Type

Alphabetical List Tree Diagram

Detailed Mineral List:

Aluminoceladonite ?
Formula: K(Mg,Fe2+)Al(Si4O10)(OH)2
Analcime
Formula: Na(AlSi2O6) · H2O
Aragonite
Formula: CaCO3
Augite
Formula: (CaxMgyFez)(Mgy1Fez1)Si2O6
Calcite
Formula: CaCO3
Chabazite-Ca
Formula: (Ca,K2,Na2)2[Al2Si4O12]2 · 12H2O
Chabazite-Na
Formula: (Na2,K2,Ca,Sr,Mg)2[Al2Si4O12]2 · 12H2O
Epistilbite
Formula: CaAl2Si6O16 · 5H2O
Reference: Sturiale, C. (1963): Rinvenimento di alcune zeoliti in ialoclastiti presso Palagonia (distretto eruttivo Ibleo-Sicilia). Rendiconti della Società Mineralogica Italiana, 19, 209-212; Sturiale, C. (1963) Rinvenimento di alcune zeoliti in ialoclastiti presso Palagonia (distretto eruttivo Ibleo -Sicilia). Rendiconti della Società Mineralogica Italiana, 19, 209-212.
Forsterite
Formula: Mg2SiO4
'Gismondine'
Reference: Ciriotti, M.E. & Biagioni, C. (2011): Pot-pourri 2011: identificazioni di minerali di interesse. Micro, 3/2011, 125-133
'Glass'
Reference: C. Lemanski, Jr. (re-entry of lost Mindat data).
'Glass var: Palagonite'
Reference: Sicurella, G., Russo, S., Ciriotti, M.E., Blass, G. (2010) Mineralogia della formazione di Monte Caliella, Palagonia (Catania, Sicilia). Micro (località), 2-2010, 371-408.
Gmelinite-Ca
Formula: Ca2(Si8Al4O24] · 11H2O
Gmelinite-Na
Formula: Na4(Si8Al4O24] · 11H2O
Gonnardite ?
Formula: (Na,Ca)2(Si,Al)5O10 · 3H2O
Reference: Sicurella, G., Russo, S., Ciriotti, M.E., Blass, G. (2010): Mineralogia della formazione di Monte Caliella, Palagonia (Catania, Sicilia). Micro (località), 2/2010, 371-408
Hydroxyapophyllite-(K)
Formula: KCa4(Si8O20)(OH,F) · 8H2O
Reference: Gemellaro, G.G. (1856): Descrizione d'alcune specieminerali dei vulcani estinti di Palagonia. Memoria II. Atti dell'Accademia Gioenia di Scienze Naturali, Serie II, 12, 145-157
'Manganese Oxides'
Reference: Gaetano Sicurella collection
'Manganese Oxides var: Manganese Dendrites'
Reference: Gaetano Sicurella collection
Mesolite
Formula: Na2Ca2Si9Al6O30 · 8H2O
Description: As white globular aggregates. According to XRD analyses performed on old specimens classified as "mesolite", the globular mineral is compatiple with tetranatrolite or natrolite (Sicurella et al., 2010).
Reference: Ponte, G. (1908) Mesolite di Palagonia. Atti dell’Accademia Gioenia di Scienze Naturali, serie 5, 1, 1-5.
Natrolite
Formula: Na2Al2Si3O10 · 2H2O
Reference: Sicurella, G., Russo, S., Ciriotti, M.E., Blass, G. (2010): Mineralogia della formazione di Monte Caliella, Palagonia (Catania, Sicilia). Micro (località), 2/2010, 371-408
Phillipsite-Ca
Formula: (Ca0.5,K,Na,Ba0.5)4-7[Al4-7Si12-9O32] . 12H2O
Phillipsite-K
Formula: (K,Na,Ca0.5,Ba0.5)4-7[Al4-7Si12-9O32] . 12H2O
Phillipsite-Na
Formula: (Na,K,Ca0.5,Ba0.5)4-7[Al4-7Si12-9O32] · 12H2O
'Smectite Group'
Formula: A0.3D2-3[T4O10]Z2 · nH2O
Reference: Sicurella, G., Russo, S., Ciriotti, M.E., Blass, G. (2010) Mineralogia della formazione di Monte Caliella, Palagonia (Catania, Sicilia). Micro (località), 2-2010, 371-408.
Tacharanite
Formula: Ca12Al2Si18O33 (OH)36
'Tetranatrolite' ?
Reference: Sicurella, G., Russo, S., Ciriotti, M.E., Blass, G. (2010) Mineralogia della formazione di Monte Caliella, Palagonia (Catania, Sicilia). Micro (località), 2-2010, 371-408.
Thaumasite
Formula: Ca3(SO4)[Si(OH)6](CO3) · 12H2O
Thomsonite-Ca ?
Formula: NaCa2[Al5Si5O20] · 6H2O
Reference: Gemellaro, G.G. (1856): Descrizione d'alcune specieminerali dei vulcani estinti di Palagonia. Memoria II. Atti dell'Accademia Gioenia di Scienze Naturali, Serie II, 12, 145-157
Tobermorite
Formula: [Ca4Si6O17 · 2H2O]·(Ca·3H2O)
Vivianite
Formula: Fe2+3(PO4)2 · 8H2O
Reference: Gemellaro, G.G. (1856): Descrizione d'alcune specieminerali dei vulcani estinti di Palagonia. Memoria II. Atti dell'Accademia Gioenia di Scienze Naturali, Serie II, 12, 145-157

List of minerals arranged by Strunz 10th Edition classification

Group 5 - Nitrates and Carbonates
Aragonite5.AB.15CaCO3
Calcite5.AB.05CaCO3
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
Thaumasite7.DG.15Ca3(SO4)[Si(OH)6](CO3) · 12H2O
Group 8 - Phosphates, Arsenates and Vanadates
Vivianite8.CE.40Fe2+3(PO4)2 · 8H2O
Group 9 - Silicates
Aluminoceladonite ?9.EC.15K(Mg,Fe2+)Al(Si4O10)(OH)2
Analcime9.GB.05Na(AlSi2O6) · H2O
Augite9.DA.15(CaxMgyFez)(Mgy1Fez1)Si2O6
Chabazite-Ca9.GD.10(Ca,K2,Na2)2[Al2Si4O12]2 · 12H2O
Chabazite-Na9.GD.10(Na2,K2,Ca,Sr,Mg)2[Al2Si4O12]2 · 12H2O
Epistilbite9.GD.45CaAl2Si6O16 · 5H2O
Forsterite9.AC.05Mg2SiO4
'Gismondine'9..
Gmelinite-Ca9.GD.05Ca2(Si8Al4O24] · 11H2O
Gmelinite-Na9.GD.05Na4(Si8Al4O24] · 11H2O
Gonnardite ?9.GA.05(Na,Ca)2(Si,Al)5O10 · 3H2O
Hydroxyapophyllite-(K)9.EA.15KCa4(Si8O20)(OH,F) · 8H2O
Mesolite ?9.GA.05Na2Ca2Si9Al6O30 · 8H2O
Natrolite9.GA.05Na2Al2Si3O10 · 2H2O
Phillipsite-Ca9.GC.10(Ca0.5,K,Na,Ba0.5)4-7[Al4-7Si12-9O32] . 12H2O
Phillipsite-K9.GC.10(K,Na,Ca0.5,Ba0.5)4-7[Al4-7Si12-9O32] . 12H2O
Phillipsite-Na9.GC.10(Na,K,Ca0.5,Ba0.5)4-7[Al4-7Si12-9O32] · 12H2O
Tacharanite9.HA.75Ca12Al2Si18O33 (OH)36
Thomsonite-Ca ?9.GA.10NaCa2[Al5Si5O20] · 6H2O
Tobermorite9.DG.10[Ca4Si6O17 · 2H2O]·(Ca·3H2O)
Unclassified Minerals, Rocks, etc.
'Glass'-
'var: Palagonite'-
'Manganese Oxides'-
'var: Manganese Dendrites'-
'Smectite Group'-A0.3D2-3[T4O10]Z2 · nH2O
'Tetranatrolite' ?-

List of minerals arranged by Dana 8th Edition classification

Group 14 - ANHYDROUS NORMAL CARBONATES
A(XO3)
Calcite14.1.1.1CaCO3
Group 32 - COMPOUND SULFATES
Hydrated Compound Sulfates containing Hydroxyl or Halogen
Thaumasite32.4.4.4Ca3(SO4)[Si(OH)6](CO3) · 12H2O
Group 40 - HYDRATED NORMAL PHOSPHATES,ARSENATES AND VANADATES
A3(XO4)2·xH2O
Vivianite40.3.6.1Fe2+3(PO4)2 · 8H2O
Group 51 - NESOSILICATES Insular SiO4 Groups Only
Insular SiO4 Groups Only with all cations in octahedral [6] coordination
Forsterite51.3.1.2Mg2SiO4
Group 65 - INOSILICATES Single-Width,Unbranched Chains,(W=1)
Single-Width Unbranched Chains, W=1 with chains P=2
Augite65.1.3a.3(CaxMgyFez)(Mgy1Fez1)Si2O6
Group 72 - PHYLLOSILICATES Two-Dimensional Infinite Sheets with Other Than Six-Membered Rings
Two-Dimensional Infinite Sheets with Other Than Six-Membered Rings with 3-, 4-, or 5-membered rings and 8-membered rings
Tacharanite72.3.2.6Ca12Al2Si18O33 (OH)36
Tobermorite72.3.2.1[Ca4Si6O17 · 2H2O]·(Ca·3H2O)
Group 77 - TECTOSILICATES Zeolites
Zeolite group - True zeolites
Analcime77.1.1.1Na(AlSi2O6) · H2O
Chabazite-Ca77.1.2.1(Ca,K2,Na2)2[Al2Si4O12]2 · 12H2O
Epistilbite77.1.6.2CaAl2Si6O16 · 5H2O
'Gismondine'77.1.3.1
Gonnardite ?77.1.5.7(Na,Ca)2(Si,Al)5O10 · 3H2O
Mesolite ?77.1.5.4Na2Ca2Si9Al6O30 · 8H2O
Natrolite77.1.5.1Na2Al2Si3O10 · 2H2O
Unclassified Minerals, Mixtures, etc.
Aluminoceladonite ?-K(Mg,Fe2+)Al(Si4O10)(OH)2
Aragonite-CaCO3
Chabazite-Na-(Na2,K2,Ca,Sr,Mg)2[Al2Si4O12]2 · 12H2O
'Glass'-
'var: Palagonite'-
Gmelinite-Ca-Ca2(Si8Al4O24] · 11H2O
Gmelinite-Na-Na4(Si8Al4O24] · 11H2O
Hydroxyapophyllite-(K)-KCa4(Si8O20)(OH,F) · 8H2O
'Manganese Oxides'-
'var: Manganese Dendrites'-
Phillipsite-Ca-(Ca0.5,K,Na,Ba0.5)4-7[Al4-7Si12-9O32] . 12H2O
Phillipsite-K-(K,Na,Ca0.5,Ba0.5)4-7[Al4-7Si12-9O32] . 12H2O
Phillipsite-Na-(Na,K,Ca0.5,Ba0.5)4-7[Al4-7Si12-9O32] · 12H2O
'Smectite Group'-A0.3D2-3[T4O10]Z2 · nH2O
'Tetranatrolite' ?-
Thomsonite-Ca ?-NaCa2[Al5Si5O20] · 6H2O

List of minerals for each chemical element

HHydrogen
H NatroliteNa2Al2Si3O10 · 2H2O
H AnalcimeNa(AlSi2O6) · H2O
H Chabazite-Ca(Ca,K2,Na2)2[Al2Si4O12]2 · 12H2O
H Chabazite-Na(Na2,K2,Ca,Sr,Mg)2[Al2Si4O12]2 · 12H2O
H Gmelinite-CaCa2(Si8Al4O24] · 11H2O
H Gmelinite-NaNa4(Si8Al4O24] · 11H2O
H Phillipsite-Ca(Ca0.5,K,Na,Ba0.5)4-7[Al4-7Si12-9O32] . 12H2O
H Phillipsite-K(K,Na,Ca0.5,Ba0.5)4-7[Al4-7Si12-9O32] . 12H2O
H Phillipsite-Na(Na,K,Ca0.5,Ba0.5)4-7[Al4-7Si12-9O32] · 12H2O
H TacharaniteCa12Al2Si18O33 (OH)36
H ThaumasiteCa3(SO4)[Si(OH)6](CO3) · 12H2O
H Tobermorite[Ca4Si6O17 · 2H2O]·(Ca·3H2O)
H Smectite GroupA0.3D2-3[T4O10]Z2 · nH2O
H Hydroxyapophyllite-(K)KCa4(Si8O20)(OH,F) · 8H2O
H VivianiteFe32+(PO4)2 · 8H2O
H EpistilbiteCaAl2Si6O16 · 5H2O
H Gonnardite(Na,Ca)2(Si,Al)5O10 · 3H2O
H AluminoceladoniteK(Mg,Fe2+)Al(Si4O10)(OH)2
H Thomsonite-CaNaCa2[Al5Si5O20] · 6H2O
H MesoliteNa2Ca2Si9Al6O30 · 8H2O
CCarbon
C AragoniteCaCO3
C CalciteCaCO3
C ThaumasiteCa3(SO4)[Si(OH)6](CO3) · 12H2O
OOxygen
O NatroliteNa2Al2Si3O10 · 2H2O
O AnalcimeNa(AlSi2O6) · H2O
O AragoniteCaCO3
O Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
O CalciteCaCO3
O Chabazite-Ca(Ca,K2,Na2)2[Al2Si4O12]2 · 12H2O
O Chabazite-Na(Na2,K2,Ca,Sr,Mg)2[Al2Si4O12]2 · 12H2O
O ForsteriteMg2SiO4
O Gmelinite-CaCa2(Si8Al4O24] · 11H2O
O Gmelinite-NaNa4(Si8Al4O24] · 11H2O
O Phillipsite-Ca(Ca0.5,K,Na,Ba0.5)4-7[Al4-7Si12-9O32] . 12H2O
O Phillipsite-K(K,Na,Ca0.5,Ba0.5)4-7[Al4-7Si12-9O32] . 12H2O
O Phillipsite-Na(Na,K,Ca0.5,Ba0.5)4-7[Al4-7Si12-9O32] · 12H2O
O TacharaniteCa12Al2Si18O33 (OH)36
O ThaumasiteCa3(SO4)[Si(OH)6](CO3) · 12H2O
O Tobermorite[Ca4Si6O17 · 2H2O]·(Ca·3H2O)
O Smectite GroupA0.3D2-3[T4O10]Z2 · nH2O
O Hydroxyapophyllite-(K)KCa4(Si8O20)(OH,F) · 8H2O
O VivianiteFe32+(PO4)2 · 8H2O
O EpistilbiteCaAl2Si6O16 · 5H2O
O Gonnardite(Na,Ca)2(Si,Al)5O10 · 3H2O
O AluminoceladoniteK(Mg,Fe2+)Al(Si4O10)(OH)2
O Thomsonite-CaNaCa2[Al5Si5O20] · 6H2O
O MesoliteNa2Ca2Si9Al6O30 · 8H2O
FFluorine
F Hydroxyapophyllite-(K)KCa4(Si8O20)(OH,F) · 8H2O
NaSodium
Na NatroliteNa2Al2Si3O10 · 2H2O
Na AnalcimeNa(AlSi2O6) · H2O
Na Chabazite-Na(Na2,K2,Ca,Sr,Mg)2[Al2Si4O12]2 · 12H2O
Na Gmelinite-NaNa4(Si8Al4O24] · 11H2O
Na Phillipsite-Ca(Ca0.5,K,Na,Ba0.5)4-7[Al4-7Si12-9O32] . 12H2O
Na Phillipsite-K(K,Na,Ca0.5,Ba0.5)4-7[Al4-7Si12-9O32] . 12H2O
Na Phillipsite-Na(Na,K,Ca0.5,Ba0.5)4-7[Al4-7Si12-9O32] · 12H2O
Na Gonnardite(Na,Ca)2(Si,Al)5O10 · 3H2O
Na Thomsonite-CaNaCa2[Al5Si5O20] · 6H2O
Na MesoliteNa2Ca2Si9Al6O30 · 8H2O
MgMagnesium
Mg Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Mg ForsteriteMg2SiO4
Mg AluminoceladoniteK(Mg,Fe2+)Al(Si4O10)(OH)2
AlAluminium
Al NatroliteNa2Al2Si3O10 · 2H2O
Al AnalcimeNa(AlSi2O6) · H2O
Al Chabazite-Ca(Ca,K2,Na2)2[Al2Si4O12]2 · 12H2O
Al Chabazite-Na(Na2,K2,Ca,Sr,Mg)2[Al2Si4O12]2 · 12H2O
Al Gmelinite-CaCa2(Si8Al4O24] · 11H2O
Al Gmelinite-NaNa4(Si8Al4O24] · 11H2O
Al Phillipsite-Ca(Ca0.5,K,Na,Ba0.5)4-7[Al4-7Si12-9O32] . 12H2O
Al Phillipsite-K(K,Na,Ca0.5,Ba0.5)4-7[Al4-7Si12-9O32] . 12H2O
Al Phillipsite-Na(Na,K,Ca0.5,Ba0.5)4-7[Al4-7Si12-9O32] · 12H2O
Al TacharaniteCa12Al2Si18O33 (OH)36
Al EpistilbiteCaAl2Si6O16 · 5H2O
Al Gonnardite(Na,Ca)2(Si,Al)5O10 · 3H2O
Al AluminoceladoniteK(Mg,Fe2+)Al(Si4O10)(OH)2
Al Thomsonite-CaNaCa2[Al5Si5O20] · 6H2O
Al MesoliteNa2Ca2Si9Al6O30 · 8H2O
SiSilicon
Si NatroliteNa2Al2Si3O10 · 2H2O
Si AnalcimeNa(AlSi2O6) · H2O
Si Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Si Chabazite-Ca(Ca,K2,Na2)2[Al2Si4O12]2 · 12H2O
Si Chabazite-Na(Na2,K2,Ca,Sr,Mg)2[Al2Si4O12]2 · 12H2O
Si ForsteriteMg2SiO4
Si Gmelinite-CaCa2(Si8Al4O24] · 11H2O
Si Gmelinite-NaNa4(Si8Al4O24] · 11H2O
Si Phillipsite-Ca(Ca0.5,K,Na,Ba0.5)4-7[Al4-7Si12-9O32] . 12H2O
Si Phillipsite-K(K,Na,Ca0.5,Ba0.5)4-7[Al4-7Si12-9O32] . 12H2O
Si Phillipsite-Na(Na,K,Ca0.5,Ba0.5)4-7[Al4-7Si12-9O32] · 12H2O
Si TacharaniteCa12Al2Si18O33 (OH)36
Si ThaumasiteCa3(SO4)[Si(OH)6](CO3) · 12H2O
Si Tobermorite[Ca4Si6O17 · 2H2O]·(Ca·3H2O)
Si Hydroxyapophyllite-(K)KCa4(Si8O20)(OH,F) · 8H2O
Si EpistilbiteCaAl2Si6O16 · 5H2O
Si Gonnardite(Na,Ca)2(Si,Al)5O10 · 3H2O
Si AluminoceladoniteK(Mg,Fe2+)Al(Si4O10)(OH)2
Si Thomsonite-CaNaCa2[Al5Si5O20] · 6H2O
Si MesoliteNa2Ca2Si9Al6O30 · 8H2O
PPhosphorus
P VivianiteFe32+(PO4)2 · 8H2O
SSulfur
S ThaumasiteCa3(SO4)[Si(OH)6](CO3) · 12H2O
KPotassium
K Chabazite-Na(Na2,K2,Ca,Sr,Mg)2[Al2Si4O12]2 · 12H2O
K Phillipsite-Ca(Ca0.5,K,Na,Ba0.5)4-7[Al4-7Si12-9O32] . 12H2O
K Phillipsite-K(K,Na,Ca0.5,Ba0.5)4-7[Al4-7Si12-9O32] . 12H2O
K Hydroxyapophyllite-(K)KCa4(Si8O20)(OH,F) · 8H2O
K AluminoceladoniteK(Mg,Fe2+)Al(Si4O10)(OH)2
CaCalcium
Ca AragoniteCaCO3
Ca Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Ca CalciteCaCO3
Ca Chabazite-Ca(Ca,K2,Na2)2[Al2Si4O12]2 · 12H2O
Ca Gmelinite-CaCa2(Si8Al4O24] · 11H2O
Ca Phillipsite-Ca(Ca0.5,K,Na,Ba0.5)4-7[Al4-7Si12-9O32] . 12H2O
Ca Phillipsite-K(K,Na,Ca0.5,Ba0.5)4-7[Al4-7Si12-9O32] . 12H2O
Ca TacharaniteCa12Al2Si18O33 (OH)36
Ca ThaumasiteCa3(SO4)[Si(OH)6](CO3) · 12H2O
Ca Tobermorite[Ca4Si6O17 · 2H2O]·(Ca·3H2O)
Ca Hydroxyapophyllite-(K)KCa4(Si8O20)(OH,F) · 8H2O
Ca EpistilbiteCaAl2Si6O16 · 5H2O
Ca Gonnardite(Na,Ca)2(Si,Al)5O10 · 3H2O
Ca Thomsonite-CaNaCa2[Al5Si5O20] · 6H2O
Ca MesoliteNa2Ca2Si9Al6O30 · 8H2O
FeIron
Fe Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Fe VivianiteFe32+(PO4)2 · 8H2O
BaBarium
Ba Phillipsite-Ca(Ca0.5,K,Na,Ba0.5)4-7[Al4-7Si12-9O32] . 12H2O
Ba Phillipsite-K(K,Na,Ca0.5,Ba0.5)4-7[Al4-7Si12-9O32] . 12H2O

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Maravigna, C. (1830) Relazione di alcune specie minerali recentemente osservate nelle rocce de’ vulcani estinti della Valle di Noto. Atti dell’Accademia Gioenia di Scienze Naturali, serie 1, 4, 89-98.
Sartorius von Waltershausen, W. (1853) Über die vulkanischen Gesteine in Sicilien und Island und ihre submarine Umbildung. Dieterischen Buchahandlung, Göttingen, XVI + 532 pp.
Gemmellaro, G.G. (1854) Descrizione d’alcune specie minerali de’ vulcani estinti di Palagonia. Atti dell’Accademia Gioenia di Scienze Naturali, serie 2, 10, 39-49.
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Localities in this Region
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  • Sicily

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