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Gramaccioliite-(Y)

A valid IMA mineral species

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Photos of Gramaccioliite-(Y) (26)

Gramaccioliite-(Y) Gallery Search Photos of Gramaccioliite-(Y)

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Gramaccioliite-(Y), etc.

Sambuco gramaccioliite site, Sambuco, Cuneo Province, Piedmont, Italy

Gramaccioliite-(Y)

Sambuco gramaccioliite site, Sambuco, Cuneo Province, Piedmont, Italy

Gramaccioliite-(Y), etc.

Kaiserer quarry, Rauris, Zell am See District, Salzburg, Austria

Gramaccioliite-(Y), etc.

Sambuco gramaccioliite site, Sambuco, Cuneo Province, Piedmont, Italy

Gramaccioliite-(Y)

Sambuco gramaccioliite site, Sambuco, Cuneo Province, Piedmont, Italy

Gramaccioliite-(Y), etc.

Kaiserer quarry, Rauris, Zell am See District, Salzburg, Austria

Gramaccioliite-(Y), etc.

Sambuco gramaccioliite site, Sambuco, Cuneo Province, Piedmont, Italy

Gramaccioliite-(Y)

Sambuco gramaccioliite site, Sambuco, Cuneo Province, Piedmont, Italy

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About Gramaccioliite-(Y)Hide

Carlo Maria Gramaccioli

Formula:

(Pb,Sr)(Y,Mn)Fe³⁺₂(Ti,Fe³⁺)₁₈O₃₈

Colour:

Black

Lustre:

Greasy, Sub-Metallic

Hardness:

Specific Gravity:

4.66 (Calculated)

Crystal System:

Trigonal

Member of:

Crichtonite Group

Name:

Honouring Carlo Maria Gramaccioli (1935-2013), mineral collector and Professor of Physical Chemistry, University of Milan, Italy. The suffix/modifier follows the Levinson rule for species with essential REE denoting, in this case, predominant yttrium.

Type Locality:

ⓘ Sambuco gramaccioliite site (Sambuco “historical” site), Sambuco, Cuneo Province, Piedmont, Italy

A member of the Crichtonite Group.

The yttrium analogue of senaite (providing the same Fe valencies) and the lead analogue of dessauite.

Unique IdentifiersHide

Mindat ID:

26445

Long-form identifier:

mindat:1:1:26445:5

GUID
(UUID V4):

44bc0bfa-6e65-4b27-b4c1-10dc4a4c3659

IMA Classification of Gramaccioliite-(Y)Hide

IMA status:

Approved

IMA Formula:

(Pb,Sr)(Y,Mn)Fe³⁺₂(Ti,Fe³⁺)₁₈O₃₈

Approval year:

2001

First published:

2004

Type description reference:

Orlandi, Paolo, Pasero, Marco, Rotiroti, Nicola, Olmi, Filippo, Demartin, Francesco, Moëlo, Yves (2004) Gramaccioliite-(Y), a new mineral of the crichtonite group from Stura Valley, Piedmont, Italy. European Journal of Mineralogy, 16 (1) 171-175 doi:10.1127/0935-1221/2004/0016-0171

Classification of Gramaccioliite-(Y)Hide

Strunz-mindat (2024):

4.CC.40

4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
C : Metal: Oxygen = 2: 3,3: 5, and similar
C : With large and medium-sized cations

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
Gmc-Y	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 Gramaccioliite-(Y)Hide

Lustre:

Greasy, Sub-Metallic

Transparency:

Opaque

Colour:

Black

Streak:

Black

Hardness:

6 on Mohs scale

Tenacity:

Brittle

Cleavage:

None Observed

Fracture:

Conchoidal

Density:

4.66 g/cm³ (Calculated)

Optical Data of Gramaccioliite-(Y)Hide

Anisotropism:

Very weak

Bireflectance:

Low

Reflectivity:

Wavelength	R₁	R₂
470nm	19.2%	6.7%
546nm	17.9%	5.9%
589nm	17.6%	5.7%
650nm	17.4%	5.8%

Graph shows reflectance levels at different wavelengths (in nm). Top of box is 100%. Peak reflectance is 19.2%.
R₁ shown in black, R₂ shown in red

Colour in reflected light:

Black

Pleochroism:

Non-pleochroic

Comments:

R₁ in oil · R₂ in air ·

Chemistry of Gramaccioliite-(Y)Hide

Mindat Formula:

(Pb,Sr)(Y,Mn)Fe³⁺₂(Ti,Fe³⁺)₁₈O₃₈

Elements listed:

Fe, Mn, O, Pb, Sr, Ti, Y - search for minerals with similar chemistry

Crystallography of Gramaccioliite-(Y)Hide

Crystal System:

Trigonal

Class (H-M):

3 - Rhombohedral

Space Group:

Cell Parameters:

a = 10.411(3) Å, c = 20.97(3) Å

Ratio:

a:c = 1 : 2.014

Unit Cell V:

1,968.40 Å³ (Calculated from Unit Cell)

Morphology:

Six-sided tabular crystals (rhombohedral-pseudohexagonal), often with a strongly corroded appearance.

Comment:

Cell refined from powder data; single-crystal data gave smaller parameters, a = 10.383, c = 20.882 Å (Orlandi et al., 1994). REE-rich material from Samos island has a = 9.1814(5) Å and α = 68.820(4)° (hexagonal setting: a = 10.377, c = 20.872 Å) (Theye et al., 2010).

Crystal StructureHide

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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)
0007033	Gramaccioliite-(Y)	Orlandi P, Pasero M, Rotiroti N, Olmi F, Demartin F, Moelo Y (2004) Gramaccioliite-(Y), a new mineral of the crichtonite group from Stura Valley, Piedmont, Italy European Journal of Mineralogy 16 171-175		2004	the gneiss of the Hercynian Massif of Argentera at Sambuco, Italy	0	293

CIF Raw Data - click here to close

data_global
_chemical_name_mineral 'Gramaccioliite-(Y)'
loop_
_publ_author_name
'Orlandi P'
'Pasero M'
'Rotiroti N'
'Olmi F'
'Demartin F'
'Moelo Y'
_journal_name_full 'European Journal of Mineralogy'
_journal_volume 16 
_journal_year 2004
_journal_page_first 171
_journal_page_last 175
_publ_section_title
;
 Gramaccioliite-(Y), a new mineral of the crichtonite group from Stura Valley, Piedmont, Italy
;
_database_code_amcsd 0007033
_chemical_compound_source 'the gneiss of the Hercynian Massif of Argentera at Sambuco, Italy'
_chemical_formula_sum 'Pb.6 Sr.3 (Y.48 Mn.34 Ce.12 U.06) Fe8 Ti12 O38'
_cell_length_a 9.186
_cell_length_b 9.186
_cell_length_c 9.186
_cell_angle_alpha 68.82
_cell_angle_beta 68.82
_cell_angle_gamma 68.82
_cell_volume 649.784
_exptl_crystal_density_diffrn      4.785
_symmetry_space_group_name_H-M 'R -3'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  '-z,-x,-y'
  'y,z,x'
  '-x,-y,-z'
  'z,x,y'
  '-y,-z,-x'
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
Pb0   0.00000   0.00000   0.00000   0.60000   0.03190
Sr0   0.00000   0.00000   0.00000   0.30000   0.03190
Y1   0.50000   0.50000   0.50000   0.48000   0.00840
Mn1   0.50000   0.50000   0.50000   0.34000   0.00840
Ce1   0.50000   0.50000   0.50000   0.12000   0.00840
U1   0.50000   0.50000   0.50000   0.06000   0.00840
Fe2   0.30960   0.30960   0.30960   1.00000   0.01200
Fe3   0.34830   0.12600   0.02040   1.00000   0.01280
Ti4   0.30880   0.71920   0.14800   1.00000   0.01090
Ti5   0.47380   0.08070   0.64230   1.00000   0.01100
O1   0.30200   0.62900   0.37700   1.00000   0.01400
O2   0.15000   0.23800   0.93700   1.00000   0.01100
O3   0.91900   0.46100   0.30200   1.00000   0.00900
O4   0.14400   0.51500   0.99100   1.00000   0.00900
O5   0.38600   0.48700   0.13700   1.00000   0.00700
O6   0.70500   0.24200   0.07000   1.00000   0.01100
O7   0.21490   0.21490   0.21490   1.00000   0.01200
loop_
_atom_site_aniso_label
_atom_site_aniso_U_11
_atom_site_aniso_U_22
_atom_site_aniso_U_33
_atom_site_aniso_U_12
_atom_site_aniso_U_13
_atom_site_aniso_U_23
Pb0 0.02830 0.02830 0.02830 -0.00350 -0.00350 -0.00350
Sr0 0.02830 0.02830 0.02830 -0.00350 -0.00350 -0.00350
Y1 0.00920 0.00920 0.00920 -0.00330 -0.00330 -0.00330
Mn1 0.00920 0.00920 0.00920 -0.00330 -0.00330 -0.00330
Ce1 0.00920 0.00920 0.00920 -0.00330 -0.00330 -0.00330
U1 0.00920 0.00920 0.00920 -0.00330 -0.00330 -0.00330
Fe2 0.01160 0.01160 0.01160 -0.00270 -0.00270 -0.00270
Fe3 0.01300 0.01400 0.01360 -0.00350 -0.00400 -0.00580
Ti4 0.01190 0.01060 0.01080 -0.00350 -0.00120 -0.00480
Ti5 0.00960 0.01220 0.01260 -0.00380 -0.00200 -0.00470

X-Ray Powder DiffractionHide

Powder Diffraction Data:

d-spacing	Intensity
3.415 Å	(48)
3.00 Å	(100)
2.89 Å	(70)
2.852 Å	(50)
2.434 Å	(50)
2.26 Å	(70)
1.809 Å	(60)
1.60 Å	(95)

Geological EnvironmentHide

Paragenetic Mode(s):

Paragenetic Mode	Earliest Age (Ga)
Stage 4a: Earth’s earliest continental crust	>4.4-3.0
19 : Granitic intrusive rocks
Near-surface Processes
23 : Subaerial aqueous alteration by non-redox-sensitive fluids (see also #47)
Stage 4b: Highly evolved igneous rocks	>3.0
35 : Ultra-alkali and agpaitic igneous rocks
36 : Carbonatites, kimberlites, and related igneous rocks
Stage 5: Initiation of plate tectonics	<3.5-2.5
40 : Regional metamorphism (greenschist, amphibolite, granulite facies)

Type Occurrence of Gramaccioliite-(Y)Hide

Type Locality:

ⓘ Sambuco gramaccioliite site (Sambuco “historical” site), Sambuco, Cuneo Province, Piedmont, Italy

General Appearance of Type Material:

Six-sided tabular crystals to 8 mm across.

Place of Conservation of Type Material:

Natural History Museum, University of Pisa, Italy, number 18299.

Geological Setting of Type Material:

Mineralized clefts in a biotite-rich granite gneiss.

Associated Minerals at Type Locality:

Xenotime-(Y)	Synchysite Group	Senaite	Rutile	Quartz
Pyrite	Muscovite	Fluorapatite	Dessauite-(Y)	Brookite
Anatase	Albite

Reference:

Orlandi, P., Pasero, M., Rotiroti, N., Olmi, F., Demartin, F., Moëlo, Y. (2004): Gramaccioliite-(Y), a new mineral of the crichtonite group from Stura Valley, Piedmont, Italy. European Journal of Mineralogy, 16, 171-175.

Synonyms of Gramaccioliite-(Y)Hide

IMA2001-034

Other Language Names for Gramaccioliite-(Y)Hide

German:Gramaccioliit-(Y)

Russian:Грамаччиолиит-(Y)

Simplified Chinese:铅钇铁钛矿

Traditional Chinese:鉛釔鐵鈦礦

Relationship of Gramaccioliite-(Y) to other SpeciesHide

Member of:

Crichtonite Group

Other Members of this group:

Almeidaite	PbZn₂(Mn,Y)(Ti,Fe³⁺)₁₈O₃₇(OH,O)	Trig. 3 : R3
Botuobinskite	SrFe²⁺Mg₂(Cr³⁺₆Ti⁴⁺₁₂)[O₃₆(OH)₂]	Trig. 3 : R3
Cleusonite	(Pb,Sr)(U⁴⁺,U⁶⁺)(Fe²⁺,Zn)₂(Ti,Fe²⁺,Fe³⁺)₁₈(O,OH)₃₈	Trig. 3 : R3
Crichtonite	Sr(Mn,Y,U)Fe₂(Ti,Fe,Cr,V)₁₈(O,OH)₃₈	Trig. 3 : R3
Davidite-(Ce)	Ce(Y,U)Fe₂(Ti,Fe,Cr,V)₁₈(O,OH,F)₃₈	Trig. 3 : R3
Davidite-(La)	La(Y,U)Fe₂(Ti,Fe,Cr,V)₁₈(O,OH,F)₃₈	Trig. 3 : R3
Davidite-(Y)	(La,Ce,Na,Ca,Pb)(Y,Fe²⁺,◻)(Fe²⁺,Mn²⁺)₂(Ti,Fe³⁺,Nb,Zr)₁₈O₃₈ (hypothetical)	Trig.
Dessauite-(Y)	(Sr,Pb)(Y,U)(Ti,Fe³⁺)₂₀O₃₈	Trig. 3 : R3
Haitaite-(La)	LaU⁴⁺Fe³⁺₂(Ti₁₃Fe²⁺₄Fe³⁺)O₃₈	Trig. 3 : R3
Landauite	NaMnZn₂(Ti,Fe)₆Ti₁₂O₃₈	Trig. 3 : R3
Lindsleyite	(Ba,Sr)(Zr,Ca)(Fe,Mg)₂(Ti,Cr,Fe)₁₈O₃₈	Trig.
Loveringite	(Ca,Ce,La)(Zr,Fe)(Mg,Fe)₂(Ti,Fe,Cr,Al)₁₈O₃₈	Trig. 3 : R3
Mapiquiroite	(Sr,Pb)(U,Y)Fe₂(Ti,Fe³⁺,Cr³⁺)₁₈O₃₈	Trig. 3 : R3
Mathiasite	(Mg,Cr,Fe,Ca,K)₂(Ti,Zr,Cr,Fe)₅O₁₂	Trig. 3 : R3
Mianningite	(◻,Pb,Ce,Na)(U⁴⁺,Mn,U⁶⁺)Fe³⁺₂ (Ti,Fe³⁺)₁₈O₃₈	Trig. 3 : R3
Mirnyite	SrZr⁴⁺Mg₂(Cr³⁺₆Ti⁴⁺₁₂)O₃₈	Trig. 3 : R3
Paseroite	PbMn²⁺(Mn²⁺,Fe³⁺)₂(V⁵⁺,Ti,◻)₁₈O₃₈	Trig. 3 : R3
Saranovskite	SrCaFe²⁺₂(Cr₄Ti₂)Ti₁₂O₃₈	Trig. 3 : R3
Senaite	Pb(Mn,Y,U)(Fe,Zn)₂(Ti,Fe,Cr,V)₁₈(O,OH)₃₈	Trig. 3 : R3
UM1987-03-O:FePbTiU	~(U,Pb)(Ti,Fe³⁺,Fe²⁺,Mn)₂₁O₃₈	Trig. 3 : R3
UM2003-08-O:AlCaFeREEScTiV	(Ca,Ce)Sc(Ti,V,Fe,Al)₂₀O₃₈
UM2006-05-O:CaFeKMnNaREESrTiZr	(Sr,Na,K,REE)(Ca,Zr,Mn)(Ti,Fe)₁₈Fe₂O₃₈
UM2006-06-O:CaFeKMnNaREESrTiZr	(Sr,Na,K,REE)(Zr,Ca,Mn)(Ti,Fe)₁₈Fe₂O₃₈
UM2006-07-O:CaFeKMnNaREESrTiZr	(Na,Sr,K,REE)(Ca,Zr,Mn)(Ti,Fe)₁₈Fe₂O₃₈
UM2006-08-O:CaFeKMnNaREESrTiZr	(Na,Sr,K,REE)(Zr,Ca,Mn)(Ti,Fe)₁₈Fe₂O₃₈
UM2006-09-O:CaFeMnREESrTiZr	(Ce,Sr,REE)(Ca,Mn,Zr)Fe₂(Ti,Fe)₁₈O₃₈
Unnamed (HBU UK-4)	NaFe²⁺Zn₂(Ti,Fe³⁺,Nb)₆Ti₁₂O₃₈	Trig. 3 : R3

Common AssociatesHide

Associated Minerals Based on Photo Data:

10 photos of Gramaccioliite-(Y) associated with Quartz	SiO₂
6 photos of Gramaccioliite-(Y) associated with Rutile	TiO₂
2 photos of Gramaccioliite-(Y) associated with Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
2 photos of Gramaccioliite-(Y) associated with Albite	Na(AlSi₃O₈)
1 photo of Gramaccioliite-(Y) associated with Xenotime-(Y)	Y(PO₄)
1 photo of Gramaccioliite-(Y) associated with Hematite	Fe₂O₃

Related Minerals - Strunz-mindat Grouping Hide

4.CC.	Xuite	Ca₃Fe³⁺₂[(AlO₃(OH)]₃	Iso. m3m (4/m 3 2/m)
4.CC.	Allendeite	Sc₄Zr₃O₁₂	Trig. 3 : R3
4.CC.	Bitikleite	Ca₃(Sb⁵⁺Sn⁴⁺)[AlO₄]₃	Iso. m3m (4/m 3 2/m) : Ia3d
4.CC.	Yttriaite-(Y)	Y₂O₃	Iso. m3 (2/m 3)
4.CC.	Chlorkyuygenite	Ca₁₂Al₁₄O₃₂[(H₂O)₄Cl₂]	Iso. 4 3m : I4 3d
4.CC.	Anzaite-(Ce)	Ce³⁺₄Fe²⁺Ti₆O₁₈ (OH)₂	Mon. 2/m : B2/m
4.CC.	Heamanite-(Ce)	(K_0.5Ce_0.5)TiO₃	Iso. m3m (4/m 3 2/m)
4.CC.	Priscillagrewite-(Y)	(Ca₂Y)Zr₂(AlO₄)₃	Iso.
4.CC.	Saranovskite	SrCaFe²⁺₂(Cr₄Ti₂)Ti₁₂O₃₈	Trig. 3 : R3
4.CC.	Botuobinskite	SrFe²⁺Mg₂(Cr³⁺₆Ti⁴⁺₁₂)[O₃₆(OH)₂]	Trig. 3 : R3
4.CC.	Mirnyite	SrZr⁴⁺Mg₂(Cr³⁺₆Ti⁴⁺₁₂)O₃₈	Trig. 3 : R3
4.CC.	Haitaite-(La)	LaU⁴⁺Fe³⁺₂(Ti₁₃Fe²⁺₄Fe³⁺)O₃₈	Trig. 3 : R3
4.CC.	Shagamite	KFe₁₁O₁₇	Hex. 6/mmm (6/m 2/m 2/m) : P6₃/mmc
4.CC.05	Chrombismite	Bi³⁺₁₆Cr⁶⁺O₂₇	Iso. m3m (4/m 3 2/m)
4.CC.10	Freudenbergite	Na₂(Ti,Fe)₈O₁₆	Mon.
4.CC.10	Fluormayenite	Ca₁₂Al₁₄O₃₂F₂	Iso. 4 3m : I4 3d
4.CC.10	Fluorkyuygenite	Ca₁₂Al₁₄O₃₂[(H₂O)₄F₂]	Iso. 4 3m : I4 3d
4.CC.15	Grossite	CaAl₄O₇	Mon. 2/m : B2/b
4.CC.17	Goldschmidtite	KNbO₃	Iso. m3m (4/m 3 2/m) : Pm3m
4.CC.20	Chlormayenite	Ca₁₂Al₁₄O₃₂[◻₄Cl₂]	Iso. 4 3m : I4 3d
4.CC.20	Unnamed (HBU UK-4)	NaFe²⁺Zn₂(Ti,Fe³⁺,Nb)₆Ti₁₂O₃₈	Trig. 3 : R3
4.CC.20	Paseroite	PbMn²⁺(Mn²⁺,Fe³⁺)₂(V⁵⁺,Ti,◻)₁₈O₃₈	Trig. 3 : R3
4.CC.20	Mianningite	(◻,Pb,Ce,Na)(U⁴⁺,Mn,U⁶⁺)Fe³⁺₂ (Ti,Fe³⁺)₁₈O₃₈	Trig. 3 : R3
4.CC.20	UM1987-03-O:FePbTiU	~(U,Pb)(Ti,Fe³⁺,Fe²⁺,Mn)₂₁O₃₈	Trig. 3 : R3
4.CC.22	Kahlenbergite	KAl₁₁O₁₇	Hex. 6/mmm (6/m 2/m 2/m) : P6₃/mmc
4.CC.22	Gorerite	CaAlFe³⁺₁₁O₁₉	Hex. 6/mmm (6/m 2/m 2/m) : P6₃/mmc
4.CC.25	Yafsoanite	Ca₃Te⁶⁺₂(ZnO₄)₃	Iso. m3m (4/m 3 2/m) : Ia3d
4.CC.25	Nixonite	Na₂Ti₆O₁₃	Mon. 2/m : B2/m
4.CC.30	Latrappite	Ca₂NbFe³⁺O₆	Orth. mmm (2/m 2/m 2/m) : Pnma
4.CC.30	Lueshite	NaNbO₃	Orth. mmm (2/m 2/m 2/m)
4.CC.30	Natroniobite	NaNbO₃	Mon.
4.CC.30	Perovskite	CaTiO₃	Orth. mmm (2/m 2/m 2/m) : Pnma
4.CC.30	Barioperovskite	BaTiO₃	Orth. mm2 : Amm2
4.CC.30	Lakargiite	Ca(Zr,Sn,Ti)O₃	Orth. mmm (2/m 2/m 2/m) : Pnma
4.CC.30	Megawite	CaSnO₃	Orth. mmm (2/m 2/m 2/m) : Pban
4.CC.32	Usturite	Ca₃(Sb⁵⁺Zr)[Fe³⁺O₄]₃	Iso. m3m (4/m 3 2/m) : Ia3d
4.CC.32	Elbrusite	Ca₃(U⁶⁺_0.5Zr_1.5)[Fe³⁺O₄]₃	Iso. m3m (4/m 3 2/m) : Ia3d
4.CC.32	Dzhuluite	Ca₃(Sb⁵⁺Sn⁴⁺)[Fe³⁺O₄]₃	Iso. m3m (4/m 3 2/m) : Ia3d
4.CC.32	Monteneveite	Ca₃Sb⁵⁺₂(Fe³⁺₂Fe²⁺)O₁₂	Iso. m3m (4/m 3 2/m) : Ia3d
4.CC.35	Loparite-(Ce)	(Na,REE)₂Ti₂O₆	Iso. m3m (4/m 3 2/m)
4.CC.35	Macedonite	PbTiO₃	Tet. 4/mmm (4/m 2/m 2/m) : P4/nmm
4.CC.35	Tausonite	SrTiO₃	Iso. 4 3m
4.CC.35	Isolueshite	(Na,La)NbO₃	Iso. m3m (4/m 3 2/m) : Pm3m
4.CC.35	Panguite	(Ti,Al,Sc,Mg,Zr,Ca)_1.8O₃	Orth. mmm (2/m 2/m 2/m) : Pbca
4.CC.37	Pauloabibite	NaNbO₃	Trig. 3 : R3
4.CC.40	Crichtonite	Sr(Mn,Y,U)Fe₂(Ti,Fe,Cr,V)₁₈(O,OH)₃₈	Trig. 3 : R3
4.CC.40	Davidite-(Ce)	Ce(Y,U)Fe₂(Ti,Fe,Cr,V)₁₈(O,OH,F)₃₈	Trig. 3 : R3
4.CC.40	Davidite-(La)	La(Y,U)Fe₂(Ti,Fe,Cr,V)₁₈(O,OH,F)₃₈	Trig. 3 : R3
4.CC.40	Davidite-(Y)	(La,Ce,Na,Ca,Pb)(Y,Fe²⁺,◻)(Fe²⁺,Mn²⁺)₂(Ti,Fe³⁺,Nb,Zr)₁₈O₃₈ (hypothetical)	Trig.
4.CC.40	Landauite	NaMnZn₂(Ti,Fe)₆Ti₁₂O₃₈	Trig. 3 : R3
4.CC.40	Lindsleyite	(Ba,Sr)(Zr,Ca)(Fe,Mg)₂(Ti,Cr,Fe)₁₈O₃₈	Trig.
4.CC.40	Loveringite	(Ca,Ce,La)(Zr,Fe)(Mg,Fe)₂(Ti,Fe,Cr,Al)₁₈O₃₈	Trig. 3 : R3
4.CC.40	Mathiasite	(Mg,Cr,Fe,Ca,K)₂(Ti,Zr,Cr,Fe)₅O₁₂	Trig. 3 : R3
4.CC.40	Senaite	Pb(Mn,Y,U)(Fe,Zn)₂(Ti,Fe,Cr,V)₁₈(O,OH)₃₈	Trig. 3 : R3
4.CC.40	Uhligite	Ca₃(Ti,Al,Zr)₉O₂₀ ?	Iso.
4.CC.40	Dessauite-(Y)	(Sr,Pb)(Y,U)(Ti,Fe³⁺)₂₀O₃₈	Trig. 3 : R3
4.CC.40	Cleusonite	(Pb,Sr)(U⁴⁺,U⁶⁺)(Fe²⁺,Zn)₂(Ti,Fe²⁺,Fe³⁺)₁₈(O,OH)₃₈	Trig. 3 : R3
4.CC.45	Diaoyudaoite	NaAl₁₁O₁₇	Hex. 6/mmm (6/m 2/m 2/m) : P6₃/mmc
4.CC.45	Hawthorneite	BaMgTi₃Cr₄Fe²⁺₂Fe³⁺₂O₁₉	Hex. 6/mmm (6/m 2/m 2/m) : P6₃/mmc
4.CC.45	Hibonite	CaAl₁₂O₁₉	Hex. 6/mmm (6/m 2/m 2/m) : P6₃/mmc
4.CC.45	Lindqvistite	Pb₂Mn²⁺Fe₁₆O₂₇	Hex. 6/mmm (6/m 2/m 2/m) : P6₃/mmc
4.CC.45	Magnetoplumbite	(Pb,Mn)(Fe,Mn)₁₂O₁₉	Hex. 6/mmm (6/m 2/m 2/m) : P6₃/mmc
4.CC.45	Plumboferrite	Pb₂(Fe³⁺,Mn²⁺,Mg)₁₁O₁₉	Trig. 3 2 : P3 1 2
4.CC.45	Yimengite	K(Cr,Ti,Fe,Mg)₁₂O₁₉	Hex. 6/mmm (6/m 2/m 2/m) : P6₃/mmc
4.CC.45	Haggertyite	BaFe²⁺₄Fe³⁺₂Ti₅MgO₁₉	Hex. 6/mmm (6/m 2/m 2/m) : P6₃/mmc
4.CC.45	Nežilovite	PbZn₂Mn⁴⁺₂Fe³⁺₈O₁₉	Hex. 6/mmm (6/m 2/m 2/m) : P6₃/mmc
4.CC.45	Batiferrite	BaTi₂Fe³⁺₈Fe²⁺₂O₁₉	Hex. 6/mmm (6/m 2/m 2/m) : P6₃/mmc
4.CC.45	Chihuahuaite	FeAl₁₂O₁₉	Hex. 6/mmm (6/m 2/m 2/m) : P6₃/mmc
4.CC.45	Barioferrite	BaFe³⁺₁₂O₁₉	Hex. 6/mmm (6/m 2/m 2/m) : P6₃/mmc
4.CC.45	Kangite	(Sc,Ti,Al,Zr,Mg,Ca,◻)₂O₃	Iso. m3 (2/m 3)
4.CC.45	Mizraite-(Ce)	Ce(Al₁₁Mg)O₁₉	Hex. 6/mmm (6/m 2/m 2/m) : P6₃/mmc
4.CC.50	Jeppeite	(K,Ba)₂(Ti,Fe)₆O₁₃	Mon. 2/m : B2/m
4.CC.55	Zenzénite	Pb₃Fe³⁺₄Mn⁴⁺₃O₁₅	Hex. 6/mmm (6/m 2/m 2/m) : P6₃/mcm
4.CC.60	Mengxianminite (of Huang et al.)	(Ca,Na)₃(Fe,Mn)₂Mg₂(Sn,Zn)₅Al₈O₂₉

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References for Gramaccioliite-(Y)Hide

Reference List:

Piccoli, G.C. (1981): Davidite di Pianche di Vinadio (CN). Prima segnalazione. Rivista Mineralogica Italiana, 1981, 19-22.

Orlandi, P. & Piccoli, G.C. (2004): Gramaccioliite-(Y) un nuovo minerale alpino del gruppo della crichtonite. Rivista Mineralogica Italiana, 1/2004, 16-17.

Theye, T.; Hatert, F.; Ockenga, E.; Bertoldi, C.; Lathe, C. (2010): Gramaccioliite-(Y): paragenesis chemistry, and structure in a new occurrence, Samos Island, Greece. European Journal of Mineralogy, 22, 443-452.

(2023) Gramaccioliite-(Y) Handbook of Mineralogy. Mineralogical Society of America

Localities for Gramaccioliite-(Y)Hide

This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the

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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
Salzburg Zell am See District Rauris ⓘ Kaiserer quarry (Deisl quarry)	Kolitsch et al. (2018)

Greece
North Aegean Samos Eastern Samos ⓘ Mikri Lakka	Theye et al. (2010)

Italy (TL)
Piedmont Cuneo Province Sambuco ⓘ Sambuco gramaccioliite site (Sambuco “historical” site) (TL)	Piccoli (1981) +4 other references
Verbano-Cusio-Ossola Province Baceno Devero Alp ⓘ Monte Cervandone area	Matteo Chinellato collection
Formazza Vallone del Vannino ⓘ Monte Giove	Cuchet et al. (2014)
Varzo ⓘ Veglia Alp (Alpe Veglia)	Cuchet et al. (2016)
ⓘ Al Piudel inferior REE-mineralization	Cuchet et al. (2016)
ⓘ Al Piudel superior REE-mineralization	Cuchet et al. (2016)
ⓘ Bianco lake REE-mineralization	Cuchet et al. (2016)
ⓘ Cima delle Piodelle REE-mineralization	Cuchet et al. (2016) +1 other reference
ⓘ Conca di Boccareccio REE-mineralization	Cuchet et al. (2016)
ⓘ Passo Carnera REE-mineralization	Cuchet et al. (2022)

Mexico
Yucatán northwest coastline of the Yucatán peninsula Puerto Chicxulub ⓘ Chicxulub impact structure	Wittmann A (2022)

Switzerland
Bern ⓘ Grimsel area	Ruef
Valais Goms Binn ⓘ Wanni glacier - Scherbadung area (Monte Cervandone)	Cuchet et al. (2014)
ⓘ Wanni glacier REE-mineralization	Cuchet et al. (2014)
Östlich Raron Grengiols Chummibort ⓘ Ritterpass NE-combe REE-mineralization	Cuchet et al. (2014)
ⓘ Ritterpass NW-combe REE-mineralization	Cuchet et al. (2014)
Saflisch Valley ⓘ Oberblatthorn REE-mineralization	Cuchet et al. (2022) +1 other reference

Gramaccioliite-(Y)

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