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Pitiglianoite

A valid IMA mineral species
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About PitiglianoiteHide

02010540015134351352201.jpg
Pitigliano, Italy
Formula:
Na6K2(Al6Si6O24)(SO4) · 2H2O
Colour:
Colourless
Lustre:
Vitreous
Hardness:
5
Specific Gravity:
2.37
Crystal System:
Hexagonal
Name:
Named for town of Pitigliano, Italy, near the type locality.

Unique IdentifiersHide

Mindat ID:
3223
Long-form identifier:
mindat:1:1:3223:6
GUID
(UUID V4):
da6e5738-4c9a-4cfa-b4aa-639edaa0b799

IMA Classification of PitiglianoiteHide

Classification of PitiglianoiteHide

9.FB.05

9 : SILICATES (Germanates)
F : Tektosilicates without zeolitic H2O
B : Tektosilicates with additional anions
76.2.5.11

76 : TECTOSILICATES Al-Si Framework
2 : Al-Si Framework Feldspathoids and related species
17.10.2

17 : Silicates Containing other Anions
10 : Silicates with sulphate, molybdate or tungstate

Mineral SymbolsHide

As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.

SymbolSourceReference
PglIMA–CNMNCWarr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43

Physical Properties of PitiglianoiteHide

Vitreous
Transparency:
Transparent
Colour:
Colourless
Streak:
White
Hardness:
Tenacity:
Brittle
Cleavage:
Poor/Indistinct
Fracture:
Sub-Conchoidal
Density:
2.37(4) g/cm3 (Measured)    2.394 g/cm3 (Calculated)

Optical Data of PitiglianoiteHide

Type:
Uniaxial (-)
RI values:
nω = 1.508(1) nε = 1.506(1)
Max Birefringence:
δ = 0.002
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Low

Chemistry of PitiglianoiteHide

Mindat Formula:
Na6K2(Al6Si6O24)(SO4) · 2H2O

Crystallography of PitiglianoiteHide

Crystal System:
Hexagonal
Class (H-M):
6 - Pyramidal
Space Group:
P63
Cell Parameters:
a = 22.121(3) Å, c = 5.221(1) Å
Ratio:
a:c = 1 : 0.236
Unit Cell V:
2,212.55 ų (Calculated from Unit Cell)
Z:
3

Crystal StructureHide

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IDSpeciesReferenceLinkYearLocalityPressure (GPa)Temp (K)
0001438PitiglianoiteMerlino S, Mellini M, Bonaccorsi E, Pasero M, Leoni L, Orlandi P (1991) Pitiglianoite, a new feldspathoid from southern Tuscany, Italy: Chemical composition and crystal structure American Mineralogist 76 2003-200819910293
CIF Raw Data - click here to close

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
4.77 Å(very strong)
3.27 Å(very strong)
6.39 Å(strong)
3.69 Å(medium)
2.769 Å(medium)
2.650 Å(medium)
5.54 Å(weak)

Geological EnvironmentHide

Paragenetic Mode(s):
Paragenetic ModeEarliest Age (Ga)
High-𝑇 alteration and/or metamorphism
31 : Thermally altered carbonate, phosphate, and iron formations
Stage 4b: Highly evolved igneous rocks>3.0
35 : Ultra-alkali and agpaitic igneous rocks

Type Occurrence of PitiglianoiteHide

General Appearance of Type Material:
Hexagonal prisms up to 4 mm long and 1 mm in diameter.
Place of Conservation of Type Material:
University of Pisa, Pisa, Italy
Geological Setting of Type Material:
Metasomatized blocks of volcanic ejecta.
Associated Minerals at Type Locality:
Reference:
Merlino, S., Mellini, M., Bonaccorsi, E., Pasero, M., Leoni, L., Orlandi, P. (1991) Pitiglianoite, a new feldspathoid from southern Tuscany, Italy: chemical composition and crystal structure. American Mineralogist: 76: 2003-2008.

Synonyms of PitiglianoiteHide

Other Language Names for PitiglianoiteHide

Relationship of Pitiglianoite to other SpeciesHide

Other Members of this group:
Afghanite(Na,K)22Ca10(Si24Al24O96)(SO4)6Cl6Trig. 3m : P3 1c
Alloriite(Na,Ca,K)26Ca4(Al6Si6O24)4(SO4)6Cl6Trig. 3m : P3 1c
Balliranoite(Na,K)6Ca2(Si6Al6O24)Cl2(CO3)Hex. 6 : P63
BetziteNa6Ca2(Al6Si6O24)Cl4Hex. 6 : P63
Biachellaite(Na,Ca,K)8(Al6Si6O24)(SO4)2(OH)0.5 · H2OTrig. 3 : P3
Bystrite(Na,K)7Ca(Al6Si6O24)(S5)ClTrig. 3m : P3 1c
Cancrinite(Na,Ca,◻)8(Al6Si6O24)(CO3,SO4)2 · 2H2OHex. 6 : P63
CancrisiliteNa7(Al5Si7O24)(CO3) · 3H2OHex. 6mm : P63mc
CarbobystriteNa8(Al6Si6O24)(CO3) · 3.5H2OTrig. 3m : P3 1c
Davyne(Na,K)6Ca2(Al6Si6O24)(Cl2,SO4)2Hex. 6/m : P63/m
DepmeieriteNa8(Al6Si6O24)(PO4,CO3)1-x · 3H2O (xHex. 6 : P63
Fantappièite[Na82.5Ca33K16.5](Si99Al99O396)(SO4)33 · 4H2OTrig. 3 : R3
Farneseite(Na,Ca,K)56(Al6Si6O24)7(SO4)12 · 6H2OHex. 6/m : P63/m
Franzinite(Na,K)6Ca2(Al6Si6O24)(SO4)2 · 0.5H2OHex.
Giuseppettite(Na,K,Ca)7-8(Al6Si6O24)(SO4,Cl)1-2Trig. 3m : P3 1c
HydroxycancriniteNa8(Al6Si6O24)(OH)2 · 2H2OHex. 6 : P63
KircheriteNa5Ca2K(Al6Si6O24)(SO4)2 · 0.33H2OTrig. 3 2 : R3 2
KyanoxaliteNa7(Al6-xSi6+xO24)(C2O4)0.5+x · 5H2O (0 < x < 0.5)Hex. 6 : P63
Liottite(Na,K)16Ca8(Al6Si6O24)3(SO4)5Cl4Hex. 6 : P6
Marinellite(Na,K)42Ca6(Al6Si6O24)6(SO4)8Cl2 · 3H2OTrig. 3m : P3 1c
MicrosommiteNa4K2Ca2(Al6Si6O24)(SO4)Cl2Hex. 6 2 2 : P63 2 2
Quadridavyne(Na,K)6Ca2(Al6Si6O24)Cl4Hex. 6/m : P63/m
Sacrofanite(Na61K19Ca32)(Si84Al84O336)(SO4)26Cl2F6 · 2H2OHex.
SlyudyankaiteNa28Ca4(Si24Al24O96)(SO4)6(S6)1/3(CO2) · 2H2OTric. 1 : P1
SteudeliteNa3(K17Ca7)Ca4(Al24Si24O96)(SO3)6F6 · 4H2OHex. 6 m2 : P62c
SulfhydrylbystriteNa5K2Ca[Al6Si6O24](S5)2(SH)Trig. 3m : P3 1c
Tounkite(Na,Ca,K)8(Al6Si6O24)(SO4)2Cl · H2OHex. 6 2 2 : P62 2 2
UM2004-48-SiO:AlClCaNaS(Na,Ca)8(Si6Al6)O24(SO4)1.7Cl1.3
UM2009-23-SiO:AlCCaClHKNaS(Na,Ca)24K10[(Si,Al)60O120](SO4)5.6Cl1.5(CO3)0.4 · 11H2OTrig. 3 : P3
Vishnevite(Na,K)8(Al6Si6O24)(SO4,CO3) · 2H2OHex. 6 : P63

Related Minerals - Strunz-mindat GroupingHide

9.FB.SteudeliteNa3(K17Ca7)Ca4(Al24Si24O96)(SO3)6F6 · 4H2OHex. 6 m2 : P62c
9.FB.SapozhnikoviteNa8(Al6Si6O24)(HS)2Iso. 4 3m : P4 3n
9.FB.BetziteNa6Ca2(Al6Si6O24)Cl4Hex. 6 : P63
9.FB.SlyudyankaiteNa28Ca4(Si24Al24O96)(SO4)6(S6)1/3(CO2) · 2H2OTric. 1 : P1
9.FB.Bolotinaite(Na7◻)(Al6Si6O24)F · 4H2OIso. 4 3m : I4 3m
9.FB.Wenlanzhangite-(Y)Y2V3+2V4+2(SiO4)2O4(OH)4Tric. 1 : P1
9.FB.05Afghanite(Na,K)22Ca10(Si24Al24O96)(SO4)6Cl6Trig. 3m : P3 1c
9.FB.05Bystrite(Na,K)7Ca(Al6Si6O24)(S5)ClTrig. 3m : P3 1c
9.FB.05Cancrinite(Na,Ca,◻)8(Al6Si6O24)(CO3,SO4)2 · 2H2OHex. 6 : P63
9.FB.05CancrisiliteNa7(Al5Si7O24)(CO3) · 3H2OHex. 6mm : P63mc
9.FB.05Davyne(Na,K)6Ca2(Al6Si6O24)(Cl2,SO4)2Hex. 6/m : P63/m
9.FB.05Franzinite(Na,K)6Ca2(Al6Si6O24)(SO4)2 · 0.5H2OHex.
9.FB.05Giuseppettite(Na,K,Ca)7-8(Al6Si6O24)(SO4,Cl)1-2Trig. 3m : P3 1c
9.FB.05HydroxycancriniteNa8(Al6Si6O24)(OH)2 · 2H2OHex. 6 : P63
9.FB.05Liottite(Na,K)16Ca8(Al6Si6O24)3(SO4)5Cl4Hex. 6 : P6
9.FB.05MicrosommiteNa4K2Ca2(Al6Si6O24)(SO4)Cl2Hex. 6 2 2 : P63 2 2
9.FB.05Quadridavyne(Na,K)6Ca2(Al6Si6O24)Cl4Hex. 6/m : P63/m
9.FB.05Sacrofanite(Na61K19Ca32)(Si84Al84O336)(SO4)26Cl2F6 · 2H2OHex.
9.FB.05Tounkite(Na,Ca,K)8(Al6Si6O24)(SO4)2Cl · H2OHex. 6 2 2 : P62 2 2
9.FB.05Vishnevite(Na,K)8(Al6Si6O24)(SO4,CO3) · 2H2OHex. 6 : P63
9.FB.05Marinellite(Na,K)42Ca6(Al6Si6O24)6(SO4)8Cl2 · 3H2OTrig. 3m : P3 1c
9.FB.05Farneseite(Na,Ca,K)56(Al6Si6O24)7(SO4)12 · 6H2OHex. 6/m : P63/m
9.FB.05Alloriite(Na,Ca,K)26Ca4(Al6Si6O24)4(SO4)6Cl6Trig. 3m : P3 1c
9.FB.05Biachellaite(Na,Ca,K)8(Al6Si6O24)(SO4)2(OH)0.5 · H2OTrig. 3 : P3
9.FB.05Fantappièite[Na82.5Ca33K16.5](Si99Al99O396)(SO4)33 · 4H2OTrig. 3 : R3
9.FB.05KyanoxaliteNa7(Al6-xSi6+xO24)(C2O4)0.5+x · 5H2O (0 < x < 0.5)Hex. 6 : P63
9.FB.05Balliranoite(Na,K)6Ca2(Si6Al6O24)Cl2(CO3)Hex. 6 : P63
9.FB.05CarbobystriteNa8(Al6Si6O24)(CO3) · 3.5H2OTrig. 3m : P3 1c
9.FB.05DepmeieriteNa8(Al6Si6O24)(PO4,CO3)1-x · 3H2O (xHex. 6 : P63
9.FB.05KircheriteNa5Ca2K(Al6Si6O24)(SO4)2 · 0.33H2OTrig. 3 2 : R3 2
9.FB.05SulfhydrylbystriteNa5K2Ca[Al6Si6O24](S5)2(SH)Trig. 3m : P3 1c
9.FB.10BicchuliteCa2(Al2SiO6)(OH)2Iso. 4 3m : I4 3m
9.FB.10DanaliteBe3Fe2+4(SiO4)3SIso. 4 3m : P4 3n
9.FB.10GenthelviteBe3Zn4(SiO4)3SIso. 4 3m : P4 3n
9.FB.10 vaHackmaniteNa8Al6Si6O24(Cl2,S)
9.FB.10HaüyneNa3Ca(Si3Al3)O12(SO4)Iso. 4 3m : P4 3n
9.FB.10HelvineBe3Mn2+4(SiO4)3SIso. 4 3m : P4 3n
9.FB.10KamaishiliteCa2(Al2SiO6)(OH)2Tet.
9.FB.10LazuriteNa7Ca(Al6Si6O24)(SO4)(S3) · H2OIso. 4 3m : P4 3n
9.FB.10NoseanNa8(Al6Si6O24)(SO4) · H2OIso. 4 3m : P4 3n
9.FB.10SodaliteNa4(Si3Al3)O12ClIso. 4 3m : P4 3n
9.FB.10Tsaregorodtsevite(N(CH3)4)(AlSi5O12)Orth. 2 2 2 : I2 2 2
9.FB.10TugtupiteNa4BeAlSi4O12ClTet. 4 : I4
9.FB.10VladimirivanoviteNa6Ca2(Al6Si6O24)(SO4,S3,S2,Cl)2 · H2OOrth. mmm (2/m 2/m 2/m)
9.FB.15MarialiteNa4Al3Si9O24ClTet. 4/m : I4/m
9.FB.15MeioniteCa4Al6Si6O24CO3Tet. 4/m : I4/m
9.FB.15Silvialite(Ca,Na)4(Al6Si6O24)(SO4,CO3)Tet. 4/m : I4/m

Other InformationHide

Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

Internet Links for PitiglianoiteHide

References for PitiglianoiteHide

Localities for PitiglianoiteHide

This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.

Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for references and further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. - Good crystals or important locality for species. - World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (e.g. from pseudomorphs).

All localities listed without proper references should be considered as questionable.
Austria
 
  • Styria
    • Südoststeiermark District
      • Bad Gleichenberg
        • Wilhelmsdorf
Postl et al. (2020)
Germany
 
  • Rhineland-Palatinate
    • Ahrweiler
      • Brohltal
        • Brenk
Blass (2022)
Italy
 
  • Lazio
    • Metropolitan City of Rome Capital
      • Campagnano di Roma
Della Ventura et al. (2005)
    • Viterbo Province
Di Domenico Dario
      • Valentano
Luigi Mattei collection
      • Vetralla
Christophe Boutry collection
  • Tuscany
    • Grosseto Province
      • Pitigliano
Merlino et al. (1991)
Sandro Maggia collection
South Africa
 
  • Free State
    • Thabo Mofutsanyane District Municipality
      • Setsoto Local Municipality
        • Clocolan
Kamenetsky et al. (2014)
USA
 
  • Montana
    • Chouteau County
      • Highwood Mountains
Kuehner et al. (2003, June)
 
Mineral and/or Locality  
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