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Franzinite

A valid IMA mineral species

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Photos of Franzinite (27)Discuss Franzinite

Franzinite Gallery Search Photos of Franzinite

Edit Franzinite Add Synonym Edit CIF structures Clear Cache

Franzinite, etc.

Parco Chigi, Ariccia, Metropolitan City of Rome Capital, Lazio, Italy

Franzinite

Casale Rosati, Valentano, Viterbo Province, Lazio, Italy

Franzinite

Stracciacappe caldera, Metropolitan City of Rome Capital, Lazio, Italy

Franzinite, etc.

Parco Chigi, Ariccia, Metropolitan City of Rome Capital, Lazio, Italy

Franzinite

Casale Rosati, Valentano, Viterbo Province, Lazio, Italy

Franzinite

Stracciacappe caldera, Metropolitan City of Rome Capital, Lazio, Italy

Franzinite, etc.

Parco Chigi, Ariccia, Metropolitan City of Rome Capital, Lazio, Italy

Franzinite

Casale Rosati, Valentano, Viterbo Province, Lazio, Italy

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About FranziniteHide

Marco Franzini

Formula:

(Na,K)₆Ca₂(Al₆Si₆O₂₄)(SO₄)₂ · 0.5H₂O

Colour:

Colourless, pearl white

Lustre:

Pearly

Hardness:

Specific Gravity:

2.46 - 2.52

Crystal System:

Hexagonal

Member of:

Cancrinite Group > Feldspathoid Group

Name:

Named by S. Merlino and P. Orlandi in 1977 in honor of Marco Franzini (3 October 1938, Florence, Italy - 15 May 2010), Professor of Mineralogy, University of Pisa, Italy.

Type Locality:

ⓘ Case Collina, Pitigliano, Grosseto Province, Tuscany, Italy

This page provides mineralogical data about Franzinite.

Unique IdentifiersHide

Mindat ID:

1601

Long-form identifier:

mindat:1:1:1601:4

IMA Classification of FranziniteHide

IMA status:

Approved

IMA Formula:

(Na,K)₃₀Ca₁₀(Si₃₀Al₃₀)O₁₂₀(S⁶⁺O₄)₁₀·2H₂O

Approval year:

1976

First published:

1977

Type description reference:

Merlino, S. and Orlandi, P. (1977) Franzinite, a new mineral phase from Pitigliano (Italy). Neues Jahrbuch für Mineralogie, Monatshefte: 1977: 163-167.

Classification of FranziniteHide

Strunz-mindat (2026):

9.FB.05

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

Dana 8th ed.:

76.2.5.6

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

Hey's CIM Ref.:

17.10.13

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.

Symbol	Source	Reference for Standard
Frz	IMA–CNMNC	Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43

Physical Properties of FranziniteHide

Lustre:

Pearly

Transparency:

Transparent, Opaque

Colour:

Colourless, pearl white

Streak:

White

Hardness:

5 on Mohs scale

Cleavage:

Distinct/Good
{0001}

Density:

2.46 - 2.52 g/cm³ (Measured) 2.54(2) g/cm³ (Calculated)

Comment:

Calculated 2.52-2.57

Optical Data of FranziniteHide

Type:

Uniaxial (+)

RI values:

n_ω = 1.510 n_ε = 1.512

Max. Birefringence:

δ = 0.002
Based on recorded range of RI values above.

Interference Colours:
The colours simulate birefringence patterns seen in thin section under crossed polars. They do not take into account mineral colouration or opacity.

Michel-Levy Bar The default colours simulate the birefringence range for a 30 µm thin-section thickness. Adjust the slider to simulate a different thickness.

Grain Simulation You can rotate the grain simulation to show how this range might look as you rotated a sample under crossed polars. Each grain retains its interference colour (retardation) while its brightness falls to black at extinction and reaches a maximum between extinction positions.

Thickness: 30 µm Order divisions

Rotation:

Surface Relief:

Low (negative)
Relative to Canada balsam mounting medium (n ≈ 1.537).

This shows the grain boundary and Becke line effect under plane-polarised light, based on the contrast between this mineral's average refractive index and the mounting medium. It does not take into account mineral colouration.

Focus:

In focus

Interference Figure:

This shows the idealized uniaxial interference figure - the conoscopic (convergent-light, Bertrand-lens-in) view, for a grain cut with the optic axis centred and vertical. The coloured rings are isochromatics, computed with the same physics as the Michel-Lévy bar above; the dark cross is the isogyre.

For a genuinely uniaxial mineral viewed this way, that cross stays perfectly stationary if you rotate the stage - unlike a biaxial mineral, where it splits apart on rotation. That invariance is itself the standard diagnostic test for telling uniaxial and biaxial minerals apart at the microscope.

Thickness: 30 µm

Chemistry of FranziniteHide

Mindat Formula:

(Na,K)₆Ca₂(Al₆Si₆O₂₄)(SO₄)₂ · 0.5H₂O

Element Weights:

Element	% weight
O	45.869 %
Si	14.865 %
Al	14.281 %
Na	12.168 %
Ca	7.071 %
S	5.657 %
H	0.089 %

Calculated from ideal end-member formula.

Elements listed:

Al, Ca, H, K, Na, O, S, Si - search for minerals with similar chemistry

Common Impurities:

Fe,Mg,K

Crystallography of FranziniteHide

Crystal System:

Hexagonal

Cell Parameters:

a = 12.88 Å, c = 26.58 Å

Ratio:

a:c = 1 : 2.064

Unit Cell V:

3,818.72 Å³ (Calculated from Unit Cell)

Comment:

Point Group: 3 2/m; 3m; or 32:; Space Group: P3m1; P3m1; P31m; or P321

Crystal StructureHide

Load
Unit Cell | Unit Cell Packed
2x2x2 | 3x3x3 | 4x4x4

View
CIF File Best | x | y | z | a | b | c

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Data courtesy of the American Mineralogist Crystal Structure Database. Click on an AMCSD ID to view structure

ID	Species	Reference	Link	Year	Locality	Pressure (GPa)	Temp (K)
0005652	Franzinite	Ballirano P, Bonaccorsi E, Maras A, Merlino S (2000) The crystal structure of franzinite, the ten-layer mineral of the cancrinite group The Canadian Mineralogist 38 657-668		2000		0	293

CIF Raw Data - click here to close

data_global
_chemical_name_mineral 'Franzinite'
loop_
_publ_author_name
'Ballirano P'
'Bonaccorsi E'
'Maras A'
'Merlino S'
_journal_name_full 'The Canadian Mineralogist'
_journal_volume 38 
_journal_year 2000
_journal_page_first 657
_journal_page_last 668
_publ_section_title
;
 The crystal structure of franzinite, the ten-layer mineral of
 the cancrinite group
;
_database_code_amcsd 0005652
_chemical_formula_sum 'Si30 Al30 O196 S10 K15.32 Na15.4 H12'
_cell_length_a 12.916
_cell_length_b 12.916
_cell_length_c 26.543
_cell_angle_alpha 90
_cell_angle_beta 90
_cell_angle_gamma 120
_cell_volume 3834.747
_exptl_crystal_density_diffrn      2.630
_symmetry_space_group_name_H-M 'P 3 2 1'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  'y,x,-z'
  '-y,x-y,z'
  '-x,-x+y,-z'
  '-x+y,-x,z'
  'x-y,-y,-z'
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_occupancy
_atom_site_U_iso_or_equiv
Si1   0.58340   0.66840   0.90180   1.00000   0.01580
Al1   0.41900   0.33320   0.09780   1.00000   0.01350
Al2   0.58660   0.66580   0.19630   1.00000   0.01900
Si2   0.41580   0.33230   0.80380   1.00000   0.01210
Al3   0.59270   0.67700   0.60280   1.00000   0.01200
Si3   0.41620   0.33650   0.39640   1.00000   0.01390
Al4   0.75110   0.75110   0.00000   1.00000   0.01800
Si4   0.24720   0.24720   0.00000   1.00000   0.01300
Si5   0.74860   0.74950   0.29760   1.00000   0.01310
Al5   0.25400   0.25150   0.70260   1.00000   0.01500
Si6   0.74850   0.74850   0.50000   1.00000   0.01400
Al6   0.25440   0.25440   0.50000   1.00000   0.01200
O1   0.44620   0.21800   0.10510   1.00000   0.06500
O2   0.87500   0.74780   0.28760   1.00000   0.02800
O3   0.24250   0.11590   0.50980   1.00000   0.02500
O4   0.32200   0.00050   0.34680   1.00000   0.02800
O5   0.67100   0.00200   0.64820   1.00000   0.02500
O6   0.65900   0.67600   0.54700   1.00000   0.02200
O7   0.35300   0.33020   0.45040   1.00000   0.02200
O8   0.66900   0.65000   0.14950   1.00000   0.04900
O9   0.34800   0.35100   0.84950   1.00000   0.06000
O10   0.45010   0.23400   0.39010   1.00000   0.02200
O11   0.66600   0.68600   0.94810   1.00000   0.07200
O12   0.32700   0.30700   0.04680   1.00000   0.08400
O13   0.44200   0.54900   0.19950   1.00000   0.03500
O14   0.54100   0.07860   0.39400   1.00000   0.02600
O15   0.65600   0.67300   0.25340   1.00000   0.02700
O16   0.34400   0.32000   0.75370   1.00000   0.05300
O17   0.88800   0.78210   0.69940   1.00000   0.03000
O18   0.42750   0.22000   0.81610   1.00000   0.03700
O19   0.91570   0.45400   0.08630   1.00000   0.06500
O20   0.12000   0.23300   0.01060   1.00000   0.07400
S1   0.37300   0.67600   0.05460   0.33333   0.06400
S2   0.34300   0.70600   0.74150   0.33333   0.07800
S3   0.02500   0.02300   0.15610   0.33333   0.08000
S4   0.33333   0.66667   0.31990   1.00000   0.02930
S5   0.33333   0.66667   0.48840   1.00000   0.02410
Wat   0.00900   0.03900   0.60400   1.00000   0.11000
KA1   0.66667   0.33333   0.81890   1.00000   0.03700
NaA2   0.00000   0.00000   0.49000   0.50000   0.20000
NaA3   0.00000   0.00000   0.72180   0.19000   0.03400
KA3   0.00000   0.00000   0.72180   0.17000   0.03400
NaA3a   0.00000   0.00000   0.74770   0.10000   0.03400
KA3a   0.00000   0.00000   0.74770   0.08000   0.03400
NaA3b   0.00000   0.00000   0.70090   0.12000   0.03400
KA3b   0.00000   0.00000   0.70090   0.10000   0.03400
NaA4   0.00000   0.00000   0.03180   0.24000   0.06000
KA4   0.00000   0.00000   0.03180   0.03000   0.06000
NaA4a   0.00000   0.00000   0.00000   0.06000   0.06000
KA4a   0.00000   0.00000   0.00000   0.01000   0.06000
KA5   0.66667   0.33333   0.37330   1.00000   0.02760
NaA6   0.66667   0.33333   0.06350   0.31000   0.05100
KA6   0.66667   0.33333   0.06350   0.06000   0.05100
NaA6a   0.66667   0.33333   0.13390   0.21000   0.05100
KA6a   0.66667   0.33333   0.13390   0.04000   0.05100
NaM1   0.50300   0.50300   0.00000   0.28000   0.04700
KM1   0.50300   0.50300   0.00000   0.14000   0.04700
NaM1a   0.45000   0.54400   0.01500   0.09000   0.04700
KM1a   0.45000   0.54400   0.01500   0.05000   0.04700
KM2   0.78150   0.56490   0.59600   0.74000   0.02890
NaM2   0.78150   0.56490   0.59600   0.17000   0.02890
NaM3   0.49090   0.51400   0.30170   0.50000   0.03960
KM3   0.49090   0.51400   0.30170   0.16000   0.03960
KM4   0.50150   0.50150   0.50000   0.47000   0.02840
NaM4   0.50150   0.50150   0.50000   0.34000   0.02840
NaM5   0.84900   0.69670   0.89730   0.21000   0.04100
KM5   0.84900   0.69670   0.89730   0.08000   0.04100
NaM5a   0.80600   0.58600   0.91640   0.09000   0.04100
KM5a   0.80600   0.58600   0.91640   0.03000   0.04100
NaM5b   0.87300   0.76000   0.88700   0.11000   0.04100
KM5b   0.87300   0.76000   0.88700   0.04000   0.04100
NaM5c   0.82900   0.65000   0.90300   0.08000   0.04100
KM5c   0.82900   0.65000   0.90300   0.03000   0.04100
NaM6   0.83400   0.66550   0.20010   0.20000   0.03400
KM6   0.83400   0.66550   0.20010   0.13000   0.03400
NaM6a   0.77200   0.55600   0.21690   0.09000   0.03400
KM6a   0.77200   0.55600   0.21690   0.06000   0.03400
NaM6b   0.87300   0.72600   0.18490   0.08000   0.03400
KM6b   0.87300   0.72600   0.18490   0.05000   0.03400
NaM6c   0.79500   0.60500   0.21390   0.07000   0.03400
KM6c   0.79500   0.60500   0.21390   0.05000   0.03400
OS1a   0.61700   0.32000   0.90540   1.00000   0.12000
OS1b   0.37500   0.60300   0.02070   1.00000   0.16000
OS1c   0.48800   0.73600   0.07600   1.00000   0.16000
OS2a   0.40100   0.78600   0.70780   1.00000   0.10000
OS2b   0.73000   0.47000   0.22500   1.00000   0.07000
OS2c   0.72800   0.39900   0.22900   1.00000   0.12000
OS3a   0.04600   0.12600   0.13100   1.00000   0.08000
OS3b   0.11300   0.07800   0.18400   1.00000   0.18000
OS3c   0.04500   0.04200   0.11300   1.00000   0.13000
OS4a   0.33333   0.66667   0.26500   1.00000   0.09300
OS4b   0.39600   0.78900   0.33900   1.00000   0.05300
OS5a   0.33333   0.66667   0.54330   1.00000   0.05800
OS5b   0.39700   0.79100   0.46980   1.00000   0.04200

X-Ray Powder DiffractionHide

Powder Diffraction Data:

d-spacing	Intensity
3.72 Å	(100)
3.59 Å	(43)
3.81 Å	(42)
3.56 Å	(39)
2.148 Å	(29)
3.302 Å	(17)
3.054 Å	(16)

Geological EnvironmentHide

Paragenetic Mode(s):

Paragenetic Mode	Earliest Age (Ga)
High-? 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 FranziniteHide

Type Locality:

ⓘ Case Collina, Pitigliano, Grosseto Province, Tuscany, Italy

Place of Conservation of Type Material:

University of Pisa, Pisa, 3208
University of Modena, Modena, Italy

Associated Minerals at Type Locality:

Afghanite

Liottite

Reference:

Merlino, S. and Orlandi, P. (1977) Franzinite, a new mineral phase from Pitigliano (Italy). Neues Jahrbuch für Mineralogie, Monatshefte: 1977: 163-167.

Synonyms of FranziniteHide

IMA1976-020

Other Language Names for FranziniteHide

Dutch:Franziniet

German:Franzinit

Russian:Францинит

Spanish:Franzinita

Relationship of Franzinite to other SpeciesHide

Member of:

Cancrinite Group > Feldspathoid Group

Other Members of Cancrinite Group:

Afghanite	(Na,K)₂₂Ca₁₀(Si₂₄Al₂₄O₉₆)(SO₄)₆Cl₆	Trig. 3m : P31c
Alloriite	(Na,Ca,K)₂₆Ca₄(Al₆Si₆O₂₄)₄(SO₄)₆Cl₆	Trig. 3m : P31c
Balliranoite	(Na,K)₆Ca₂(Si₆Al₆O₂₄)Cl₂(CO₃)	Hex. 6 : P6₃
Betzite	Na₆Ca₂(Al₆Si₆O₂₄)Cl₄	Hex. 6 : P6₃
Biachellaite	(Na,Ca,K)₈(Al₆Si₆O₂₄)(SO₄)₂(OH)_0.5 · H₂O	Trig. 3 : P3
Bystrite	(Na,K)₇Ca(Al₆Si₆O₂₄)(S₅)Cl	Trig. 3m : P31c
Cancrinite	(Na,Ca,◻)₈(Al₆Si₆O₂₄)(CO₃,SO₄)₂ · 2H₂O	Hex. 6 : P6₃
Cancrisilite	Na₇(Al₅Si₇O₂₄)(CO₃) · 3H₂O	Hex. 6mm : P6₃mc
Carbobystrite	Na₈(Al₆Si₆O₂₄)(CO₃) · 3.5H₂O	Trig. 3m : P31c
Davyne	(Na,K)₆Ca₂(Al₆Si₆O₂₄)(Cl₂,SO₄)₂	Hex. 6/m : P6₃/m
Depmeierite	Na₈(Al₆Si₆O₂₄)(PO₄,CO₃)_1-x · 3H₂O (x<0.5)	Hex. 6 : P6₃
Fantappièite	[Na_82.5Ca₃₃K_16.5](Si₉₉Al₉₉O₃₉₆)(SO₄)₃₃ · 4H₂O	Trig. 3 : R3
Farneseite	(Na,Ca,K)₅₆(Al₆Si₆O₂₄)₇(SO₄)₁₂ · 6H₂O	Hex. 6/m : P6₃/m
Giuseppettite	(Na,K,Ca)_7-8(Al₆Si₆O₂₄)(SO₄,Cl)_1-2	Trig. 3m : P31c
Hydroxycancrinite	Na₈(Al₆Si₆O₂₄)(OH)₂ · 2H₂O	Hex. 6 : P6₃
Kircherite	Na₅Ca₂K(Al₆Si₆O₂₄)(SO₄)₂ · 0.33H₂O	Trig. 32 : R32
Kyanoxalite	Na₇(Al_6-xSi_6+xO₂₄)(C₂O₄)_0.5+x · 5H₂O (0 < x < 0.5)	Hex. 6 : P6₃
Liottite	(Na,K)₁₆Ca₈(Al₆Si₆O₂₄)₃(SO₄)₅Cl₄	Hex. 6 : P6
Marinellite	(Na,K)₄₂Ca₆(Al₆Si₆O₂₄)₆(SO₄)₈Cl₂ · 3H₂O	Trig. 3m : P31c
Microsommite	Na₄K₂Ca₂(Al₆Si₆O₂₄)(SO₄)Cl₂	Hex. 622 : P6₃22
Pitiglianoite	Na₆K₂(Al₆Si₆O₂₄)(SO₄) · 2H₂O	Hex. 6 : P6₃
Quadridavyne	(Na,K)₆Ca₂(Al₆Si₆O₂₄)Cl₄	Hex. 6/m : P6₃/m
Sacrofanite	(Na₆₁K₁₉Ca₃₂)(Si₈₄Al₈₄O₃₃₆)(SO₄)₂₆Cl₂F₆ · 2H₂O	Hex.
Steudelite	Na₃(K₁₇Ca₇)Ca₄(Al₂₄Si₂₄O₉₆)(SO₃)₆F₆ · 4H₂O	Hex. 6m2 : P62c
Sulfhydrylbystrite	Na₅K₂Ca[Al₆Si₆O₂₄](S₅)₂(SH)	Trig. 3m : P31c
Tounkite	(Na,Ca,K)₈(Si₆Al₆)O₂₄(SO₄)₂Cl · 0.5H₂O	Hex. 622 : P6₂22
'UM2004-48-SiO:AlClCaNaS'	(Na,Ca)₈(Si₆Al₆)O₂₄(SO₄)_1.7Cl_1.3
'UM2009-23-SiO:AlCCaClHKNaS'	(Na,Ca)₂₄K₁₀[(Si,Al)₆₀O₁₂₀](SO₄)_5.6Cl_1.5(CO₃)_0.4 · 11H₂O	Trig. 3 : P3
Vishnevite	(Na,K)₈(Al₆Si₆O₂₄)(SO₄,CO₃) · 2H₂O	Hex. 6 : P6₃

Common AssociatesHide

Associations Based on Photo Data:

4 photos of Franzinite associated with Grossular	Ca₃Al₂(SiO₄)₃
2 photos of Franzinite associated with Phlogopite	KMg₃(AlSi₃O₁₀)(OH)₂
2 photos of Franzinite associated with Cuspidine	Ca₈(Si₂O₇)₂F₄
1 photo of Franzinite associated with 'Fassaite'	(Ca,Na)(Mg,Fe²⁺,Al,Fe³⁺,Ti)[(Si,Al)₂O₆]
1 photo of Franzinite associated with Vesuvianite	Ca₁₉Fe³⁺Al₄(Al₆Mg₂)(◻₄)◻[Si₂O₇]₄[(SiO₄)₁₀]O(OH)₉

Related Minerals - Strunz-mindat Grouping Hide

9.FB.	Perchukite-(Y)	PbYAsSi₂O₈	Mon. 2/m : B2/b
9.FB.	Åsgruvanite-(Ce)	Ce₁₆Ca₅Al(SiO₄)₆(AsO₃)₈(CO₃)₂Cl₄F₃(OH)₂	Trig. 3m(32/m) : P3m1
9.FB.	Steudelite	Na₃(K₁₇Ca₇)Ca₄(Al₂₄Si₂₄O₉₆)(SO₃)₆F₆ · 4H₂O	Hex. 6m2 : P62c
9.FB.	Wenlanzhangite-(Y)	Y₂V³⁺₂V⁴⁺₂(SiO₄)₂O₄(OH)₄	Tric. 1 : P1
9.FB.	Slyudyankaite	Na₂₈Ca₄(Si₂₄Al₂₄O₉₆)(SO₄)₆(S₆)_1/3(CO₂) · 2H₂O	Tric. 1 : P1
9.FB.	Bolotinaite	(Na₇◻)(Al₆Si₆O₂₄)F · 4H₂O	Iso. 43m : I43m
9.FB.	Sapozhnikovite	Na₈(Al₆Si₆O₂₄)(HS)₂	Iso. 43m : P43n
9.FB.	Betzite	Na₆Ca₂(Al₆Si₆O₂₄)Cl₄	Hex. 6 : P6₃
9.FB.05	Quadridavyne	(Na,K)₆Ca₂(Al₆Si₆O₂₄)Cl₄	Hex. 6/m : P6₃/m
9.FB.05	Sulfhydrylbystrite	Na₅K₂Ca[Al₆Si₆O₂₄](S₅)₂(SH)	Trig. 3m : P31c
9.FB.05	Marinellite	(Na,K)₄₂Ca₆(Al₆Si₆O₂₄)₆(SO₄)₈Cl₂ · 3H₂O	Trig. 3m : P31c
9.FB.05	Afghanite	(Na,K)₂₂Ca₁₀(Si₂₄Al₂₄O₉₆)(SO₄)₆Cl₆	Trig. 3m : P31c
9.FB.05	Bystrite	(Na,K)₇Ca(Al₆Si₆O₂₄)(S₅)Cl	Trig. 3m : P31c
9.FB.05	Kyanoxalite	Na₇(Al_6-xSi_6+xO₂₄)(C₂O₄)_0.5+x · 5H₂O (0 < x < 0.5)	Hex. 6 : P6₃
9.FB.05	Vishnevite	(Na,K)₈(Al₆Si₆O₂₄)(SO₄,CO₃) · 2H₂O	Hex. 6 : P6₃
9.FB.05	Farneseite	(Na,Ca,K)₅₆(Al₆Si₆O₂₄)₇(SO₄)₁₂ · 6H₂O	Hex. 6/m : P6₃/m
9.FB.05	Alloriite	(Na,Ca,K)₂₆Ca₄(Al₆Si₆O₂₄)₄(SO₄)₆Cl₆	Trig. 3m : P31c
9.FB.05	Liottite	(Na,K)₁₆Ca₈(Al₆Si₆O₂₄)₃(SO₄)₅Cl₄	Hex. 6 : P6
9.FB.05	Depmeierite	Na₈(Al₆Si₆O₂₄)(PO₄,CO₃)_1-x · 3H₂O (x<0.5)	Hex. 6 : P6₃
9.FB.05	Biachellaite	(Na,Ca,K)₈(Al₆Si₆O₂₄)(SO₄)₂(OH)_0.5 · H₂O	Trig. 3 : P3
9.FB.05	Cancrinite	(Na,Ca,◻)₈(Al₆Si₆O₂₄)(CO₃,SO₄)₂ · 2H₂O	Hex. 6 : P6₃
9.FB.05	Cancrisilite	Na₇(Al₅Si₇O₂₄)(CO₃) · 3H₂O	Hex. 6mm : P6₃mc
9.FB.05	Fantappièite	[Na_82.5Ca₃₃K_16.5](Si₉₉Al₉₉O₃₉₆)(SO₄)₃₃ · 4H₂O	Trig. 3 : R3
9.FB.05	Carbobystrite	Na₈(Al₆Si₆O₂₄)(CO₃) · 3.5H₂O	Trig. 3m : P31c
9.FB.05	Microsommite	Na₄K₂Ca₂(Al₆Si₆O₂₄)(SO₄)Cl₂	Hex. 622 : P6₃22
9.FB.05	Pitiglianoite	Na₆K₂(Al₆Si₆O₂₄)(SO₄) · 2H₂O	Hex. 6 : P6₃
9.FB.05	Tounkite	(Na,Ca,K)₈(Si₆Al₆)O₂₄(SO₄)₂Cl · 0.5H₂O	Hex. 622 : P6₂22
9.FB.05	Balliranoite	(Na,K)₆Ca₂(Si₆Al₆O₂₄)Cl₂(CO₃)	Hex. 6 : P6₃
9.FB.05	Giuseppettite	(Na,K,Ca)_7-8(Al₆Si₆O₂₄)(SO₄,Cl)_1-2	Trig. 3m : P31c
9.FB.05	Sacrofanite	(Na₆₁K₁₉Ca₃₂)(Si₈₄Al₈₄O₃₃₆)(SO₄)₂₆Cl₂F₆ · 2H₂O	Hex.
9.FB.05	Kircherite	Na₅Ca₂K(Al₆Si₆O₂₄)(SO₄)₂ · 0.33H₂O	Trig. 32 : R32
9.FB.05	Hydroxycancrinite	Na₈(Al₆Si₆O₂₄)(OH)₂ · 2H₂O	Hex. 6 : P6₃
9.FB.05	Davyne	(Na,K)₆Ca₂(Al₆Si₆O₂₄)(Cl₂,SO₄)₂	Hex. 6/m : P6₃/m
9.FB.10	Haüyne	Na₃Ca(Si₃Al₃)O₁₂(SO₄)	Iso. 43m : P43n
9.FB.10	Lazurite	Na₇Ca(Al₆Si₆O₂₄)(SO₄)(S₃) · H₂O	Iso. 43m : P43n
9.FB.10	Danalite	Be₃Fe²⁺₄(SiO₄)₃S	Iso. 43m : P43n
9.FB.10	Helvine	Be₃Mn²⁺₄(SiO₄)₃S	Iso. 43m : P43n
9.FB.10	Kamaishilite	Ca₂(Al₂SiO₆)(OH)₂	Tet.
9.FB.10	Sodalite	Na₄(Si₃Al₃)O₁₂Cl	Iso. 43m : P43n
9.FB.10	Nosean	Na₈(Al₆Si₆O₂₄)(SO₄) · H₂O	Iso. 43m : P43n
9.FB.10	Genthelvite	Be₃Zn₄(SiO₄)₃S	Iso. 43m : P43n
9.FB.10	Bicchulite	Ca₂(Al₂SiO₆)(OH)₂	Iso. 43m : I43m
9.FB.10	Tsaregorodtsevite	(N(CH₃)₄)(AlSi₅O₁₂)	Orth. 222 : I222
9.FB.10	Vladimirivanovite	Na₆Ca₂(Al₆Si₆O₂₄)(SO₄,S₃,S₂,Cl)₂ · H₂O	Orth. mmm(2/m2/m2/m)
9.FB.10	Tugtupite	(BeAlSi)Na₄(SiO₄)₃Cl	Tet. 4 : I4
9.FB.15	Marialite	Na₄Al₃Si₉O₂₄Cl	Tet. 4/m : I4/m
9.FB.15	Meionite	Ca₄Al₆Si₆O₂₄CO₃	Tet. 4/m : I4/m
9.FB.15	Silvialite	(Ca,Na)₄(Al₆Si₆O₂₄)(SO₄,CO₃)	Tet. 4/m : I4/m

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References for FranziniteHide

Reference List:

Merlino, S. and Orlandi, P. (1977) Franzinite, a new mineral phase from Pitigliano (Italy). Neues Jahrbuch für Mineralogie, Monatshefte: 1977: 163-167.

Fleischer, Michael, Cabri, Louis J., Pabst, and Adolf (1977) New mineral names. American Mineralogist, 62 (11-12) 1259-1262

Merlino, S. and Orlandi, P. (1977) Franzinite, a new mineral phase from Pitigliano (Italy). Neues Jahrbuch für Mineralogie, Monatshefte: 1977: 163-167.

Leoni, L., Mellini, M., Merlino, S., and Orlandi, P. (1979) Cancrinite-like minerals: new data and crystal chemical considerations. Rendiconti della Società Italiana di Mineralogia e Petrologia: 35: 713-719.

Rinaldi, R., Wenk, H. R. (1979) Stacking variations in cancrinite minerals. Acta Crystallographica Section A: Crystal Physics, Diffraction, Theoretical and General Crystallography, 35 (5). 825-828 doi:10.1107/s0567739479001868

Hassan, I., Grundy, H. D. (1984) The crystal structures of sodalite-group minerals. Acta Crystallographica Section B Structural Science, 40 (1) 6-13 doi:10.1107/s0108768184001683

Ballirano, P., Maras, A., Buseck, P. R. (1996) Crystal chemistry and IR spectroscopy of Cl- and SO4-bearing cancrinite-like minerals. American Mineralogist, 81 (7) 1003-1012 doi:10.2138/am-1996-7-822

Ballirano, P., Bonaccorsi, E., Maras, A., Merlino, S. (2000) The crystal structure of franzinite, the ten-layer mineral of the cancrinite group. The Canadian Mineralogist, 38 (3) 657-668 doi:10.2113/gscanmin.38.3.657

Jambor, J.L. and Roberts, A.C. (2001) New mineral names. American Mineralogist: 86: 197-200.

(2001) Franzinite. Handbook of Mineralogy. Mineralogical Society of America

Localities for FranziniteHide

Showing 13 localities.

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- 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.


Italy
ⓘ Latera volcanic complex	in the collection of Luigi Mattei
Lazio Metropolitan City of Rome Capital ⓘ Albano Laziale	luigi chiappino specimen
ⓘ Castelli Romani bypass road (Via Appia Bis)
ⓘ Ariccia
ⓘ Parco Chigi	Andreoli et al. (1978)
Bracciano ⓘ SH2 deep well	Franceschini et al. (1989)
Magliano Romano ⓘ Fosso Attici	Stoppani et al. (1982)
ⓘ Sacrofano	[AmMin 85:201]
ⓘ Stracciacappe caldera	Giuseppe Illuminati Collection
Viterbo Province Farnese ⓘ Fosso La Nova	collection of Paul Mestrom based on ...
Valentano ⓘ Casale Rosati	Luigi Mattei photo +1 other reference
ⓘ Vico volcanic complex (Vico Lake)	Lapis 28 (12)
Tuscany Grosseto Province Pitigliano ⓘ Case Collina (TL)	Merlino et al. (1977)

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Franzinite

About FranziniteHide

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