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Fantappièite

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About FantappièiteHide

Formula:
[Na82.5Ca33K16.5](Si99Al99O396)(SO4)33 · 4H2O
Colour:
colorless
Lustre:
Vitreous
Hardness:
6
Specific Gravity:
2.471 (Calculated)
Crystal System:
Trigonal
Name:
for Acasto Liberto Fantappiè (Pontassieve, 1862–Viterbo, 1933), a distinguished geologist and naturalist who dedicated part of his scientific activity to the mineralogy and petrology of the volcanic rocks of the Roman Comagmatic Region in the Sabatini area where the mineral has been found.

Classification of FantappièiteHide

Approved
Approval Year:
2008
9.FB.05

9 : SILICATES (Germanates)
F : Tektosilicates without zeolitic H2O
B : Tektosilicates with additional anions
76.2.9.20

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

Physical Properties of FantappièiteHide

Vitreous
Transparency:
Transparent
Colour:
colorless
Streak:
White
Hardness:
Hardness:
VHN10=719 kg/mm2 - Vickers
Tenacity:
Brittle
Cleavage:
Poor/Indistinct
{001}
Parting:
none
Fracture:
Conchoidal
Density:
2.471 g/cm3 (Calculated)

Optical Data of FantappièiteHide

Type:
Uniaxial (-)
RI values:
nω = 1.505() nε = 1.503(5)
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
Pleochroism:
Non-pleochroic

Chemical Properties of FantappièiteHide

Formula:
[Na82.5Ca33K16.5](Si99Al99O396)(SO4)33 · 4H2O
IMA Formula:
[Na82.5Ca33K16.5]Σ=132(Si99Al99O396)(SO4)33 · 6H2O

Crystallography of FantappièiteHide

Crystal System:
Trigonal
Class (H-M):
3 - Rhombohedral
Space Group:
R3
Cell Parameters:
a = 12.8742(6) Å, c = 87.215(3) Å
Ratio:
a:c = 1 : 6.774
Unit Cell V:
12,518.79 ų (Calculated from Unit Cell)
Z:
1

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
6.85 (66)
6.39 (65)
5.74 (52)
3.773 (60)
3.691 (100)
3.587 (70)
3.551 (53)
2.639 (73)

Type Occurrence of FantappièiteHide

General Appearance of Type Material:
crystals, showing complex short-prismatic morphology
Place of Conservation of Type Material:
Museum of Mineralogy of the University of Roma, La Sapienza (code number MMUR 33027/1).
Geological Setting of Type Material:
In miarolytic cavities in volcanic ejectum consisting of dominant sanidine with minor plagioclase, biotite, augitic clinopyroxene, andradite, and iron oxides. y latestage metasomatic processes related to the phreatomagmatic stage of the Stracciacappe vent
Associated Minerals at Type Locality:

Synonyms of FantappièiteHide

Common AssociatesHide

Associated Minerals Based on Photo Data:
Augite2 photos of Fantappièite associated with Augite on mindat.org.

Related Minerals - Nickel-Strunz GroupingHide

9.FB.05Afghanite(Na,K)22Ca10(Si24Al24O96)(SO4)6Cl6Trig. 3m : P3 1c
9.FB.05Bystrite(Na,K)7Ca(Al6Si6O24)(S5)ClHex.
9.FB.05Cancrinite(Na,Ca,☐)8(Al6Si6O24)(CO3,SO4)2 · 2H2OHex. 6 : P63
9.FB.05CancrisiliteNa7(Al5Si7O24)(CO3) · 3H2OHex.
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)1-2Hex.
9.FB.05HydroxycancriniteNa8(Al6Si6O24)(OH)2 · 2H2OHex.
9.FB.05Liottite(Na,K)16Ca8(Al6Si6O24)3(SO4)5Cl4Hex.
9.FB.05MicrosommiteNa4K2Ca2(Al6Si6O24)(SO4)Cl2Hex.
9.FB.05PitiglianoiteNa6K2(Al6Si6O24)(SO4) · 2H2OHex.
9.FB.05Quadridavyne(Na,K)6Ca2(Al6Si6O24)Cl4Hex.
9.FB.05Sacrofanite(Na61K19Ca32)(Si84Al84O336)(SO4)26Cl2F6•2H2OHex.
9.FB.05Tounkite(Na,Ca,K)8(Al6Si6O24)(SO4)2Cl · H2OHex.
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.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 (x<0.5)Hex. 6 : P63
9.FB.05KircheriteNa5Ca2K(Al6Si6O24)(SO4)2 · 0.33H2OTrig. 3 2 : R3 2
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.10Haüyne(Na,K)3(Ca,Na)(Al3Si3O12)(SO4,S,Cl)Iso. 4 3m : P4 3n
9.FB.10HelvineBe3Mn2+4(SiO4)3SIso. 4 3m : P4 3n
9.FB.10KamaishiliteCa2(Al2SiO6)(OH)2Tet.
9.FB.10LazuriteNa6Ca2(Al6Si6O24)(SO4,S,S2, S3,Cl,OH)2Iso. 4 3m : P4 3n
9.FB.10NoseanNa8(Al6Si6O24)(SO4) · H2OIso. 4 3m : P4 3n
9.FB.10SodaliteNa8(Al6Si6O24)Cl2Iso. 4 3m : P4 3n
9.FB.10Tsaregorodtsevite(N(CH3)4)(AlSi5O12)Orth.
9.FB.10TugtupiteNa4BeAlSi4O12ClTet. 4 : I4
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

Related Minerals - Dana Grouping (8th Ed.)Hide

76.2.9.19Biachellaite(Na,Ca,K)8(Al6Si6O24)(SO4)2(OH)0.5 · H2OTrig. 3 : P3
76.2.9.21KyanoxaliteNa7(Al6-xSi6+xO24)(C2O4)0.5+x · 5H2O (0 < x < 0.5)Hex. 6 : P63
76.2.9.21IMA2008-041Na7(Al6-xSi6+xO24)(C2O4)0.5+x · 5H2O (0 < x < 0.5)
76.2.9.22Balliranoite(Na,K)6Ca2(Si6Al6O24)Cl2(CO3)Hex. 6 : P63
76.2.9.24DepmeieriteNa8(Al6Si6O24)(PO4,CO3)1-x · 3H2O (x<0.5)Hex. 6 : P63
76.2.9.26KircheriteNa5Ca2K(Al6Si6O24)(SO4)2 · 0.33H2OTrig. 3 2 : R3 2

Fluorescence of FantappièiteHide

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.

References for FantappièiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Ciriotti, M.E., Fascio, L. & Pasero, M. (2009): Italian Type Minerals. Edizioni Plus, Università di Pisa, Pisa, Italy, 357 pp.
Bellatreccia, F., Cámara, F., Della Ventura, G., Mottana, A.P., Bindi, L., Mickey, G.E., Sebastiani, M. (2010): Fantappièite, a new mineral of the cancrinite-sodalite group with a 33-layer stacking sequence: occurrence and crystal structure. American Mineralogist, 95, 472-480.

Internet Links for FantappièiteHide

Localities for FantappièiteHide

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 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 (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
Italy (TL)
 
  • Latium
    • Rome Province
      • Rome
Bellatreccia, F., Cámara, F., Della Ventura, G., Mottana, A.P., Bindi, L., Mickey, G.E., Sebastiani, M. (2010): Fantappièite, a new mineral of the cancrinite-sodalite group with a 33-layer stacking sequence: occurrence and crystal structure. American Mineralogist, 95, 472-480.
    • Viterbo Province
      • Làtera volcano
        • Farnese
Antonio Borrelli collection (FTIR + XRD analysed - Università degli Studi Roma Tre)
Mineral and/or Locality  
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