Cuspidine
A valid IMA mineral species - grandfathered
This page is currently not sponsored. Click here to sponsor this page.
About Cuspidine
Formula:
Ca8(Si2O7)2F4
(Z=2)
Colour:
Colorless, tan, light brown, pale red.
Lustre:
Vitreous, Sub-Vitreous, Waxy
Hardness:
5 - 6
Specific Gravity:
2.97 - 2.99
Crystal System:
Monoclinic
Member of:
Name:
Named by Arcangelo Scacchi in 1876 from the Greek "cuspis," for a spear, the characteristic shape of the twinned crystals.
Type Locality:
Isostructural with:
A sorosilicate belonging to the wöhlerite group. It was first found and described from ejected blocks of metamorphosed limestone at Mount Somma, Somma-Vesuvius complex, Italy. It also occurs in skarns, tuff ejecta, calc-silicate xenoliths, alkaline rocks and natrocarbonatite.
The F analogue of 'Chlorocuspidine'.
May be associated with pyrometamorphism due to coal fires (e.g., Kruszewski, 2006). As such, it may bear some germanium.
The F analogue of 'Chlorocuspidine'.
May be associated with pyrometamorphism due to coal fires (e.g., Kruszewski, 2006). As such, it may bear some germanium.
Unique Identifiers
Mindat ID:
1198
Long-form identifier:
mindat:1:1:1198:9
IMA Classification of Cuspidine
Approved, 'Grandfathered' (first described prior to 1959)
First published:
1876
Classification of Cuspidine
9.BE.17
9 : SILICATES (Germanates)
B : Sorosilicates
E : Si2O7 groups, with additional anions; cations in octahedral [6] and greater coordination
9 : SILICATES (Germanates)
B : Sorosilicates
E : Si2O7 groups, with additional anions; cations in octahedral [6] and greater coordination
56.2.4.3
56 : SOROSILICATES Si2O7 Groups, With Additional O, OH, F and H2O
2 : Si2O7 Groups and O, OH, F, and H2O with cations in [4] and/or >[4] coordination
56 : SOROSILICATES Si2O7 Groups, With Additional O, OH, F and H2O
2 : Si2O7 Groups and O, OH, F, and H2O with cations in [4] and/or >[4] coordination
17.1.15
17 : Silicates Containing other Anions
1 : Silicates with fluoride (not containing Al)
17 : Silicates Containing other Anions
1 : Silicates with fluoride (not containing Al)
Mineral Symbols
As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
Please only use the official IMA–CNMNC symbol. Older variants are listed for historical use only.
Please only use the official IMA–CNMNC symbol. Older variants are listed for historical use only.
| Symbol | Source | Reference |
|---|---|---|
| Csp | IMA–CNMNC | Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
| Csp | Whitney & Evans (2010) | Whitney, D.L. and Evans, B.W. (2010) Abbreviations for names of rock-forming minerals. American Mineralogist, 95, 185–187 doi:10.2138/am.2010.3371 |
| Cus | The Canadian Mineralogist (2019) | The Canadian Mineralogist (2019) The Canadian Mineralogist list of symbols for rock- and ore-forming minerals (December 30, 2019). download |
Physical Properties of Cuspidine
Vitreous, Sub-Vitreous, Waxy
Transparency:
Translucent
Colour:
Colorless, tan, light brown, pale red.
Streak:
White
Hardness:
5 - 6 on Mohs scale
Tenacity:
Brittle
Cleavage:
Distinct/Good
good on {100}, distinct on {110}, also {122} poor
good on {100}, distinct on {110}, also {122} poor
Fracture:
Irregular/Uneven
Density:
2.97 - 2.99 g/cm3 (Measured) 2.98 g/cm3 (Calculated)
Optical Data of Cuspidine
Type:
Biaxial (+)
RI values:
nα = 1.586 - 1.594 nβ = 1.589 - 1.596 nγ = 1.598 - 1.606
2V:
Measured: 59° to 71°, Calculated: 58° to 66°
Birefringence:
0.012-0.017
Max. Birefringence:
δ = 0.012
Based on recorded range of RI values above.
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.
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.
Surface Relief:
Moderate
Dispersion:
r > v distinct
Pleochroism:
Non-pleochroic
Chemistry of Cuspidine
Mindat Formula:
Ca8(Si2O7)2F4
(Z=2)
(Z=2)
Element Weights:
Elements listed:
Common Impurities:
Mn,Na,K,Cl
Crystallography of Cuspidine
Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
P21/b
Setting:
P21/a
Cell Parameters:
a = 10.906 Å, b = 10.521 Å, c = 7.518 Å
β = 109.90°
β = 109.90°
Ratio:
a:b:c = 1.037 : 1 : 0.715
Unit Cell V:
811.12 ų (Calculated from Unit Cell)
Z:
4
Morphology:
Colorless to tan masses, occasionally pale red. Crystals have a steep termination.
Twinning:
Simple, lamellar, polysynthetic on {100}.
Comment:
Refinement data from Saburi et al (1977)
Crystal Structure
Load
Unit Cell | Unit Cell Packed
2x2x2 | 3x3x3 | 4x4x4
Unit Cell | Unit Cell Packed
2x2x2 | 3x3x3 | 4x4x4
Show
Big Balls | Small Balls | Just Balls | Spacefill
Polyhedra Off | Si Polyhedra | All Polyhedra
Remove metal-metal sticks
Big Balls | Small Balls | Just Balls | Spacefill
Polyhedra Off | Si Polyhedra | All Polyhedra
Remove metal-metal sticks
Display Options
Black Background | White Background
Perspective On | Perspective Off
2D | Stereo | Red-Blue | Red-Cyan
Black Background | White Background
Perspective On | Perspective Off
2D | Stereo | Red-Blue | Red-Cyan
View
CIF File Best | x | y | z | a | b | c
CIF File Best | x | y | z | a | b | c
Rotation
Stop | Start
Stop | Start
Labels
Console Off | On | Grey | Yellow
Console Off | On | Grey | Yellow
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) |
|---|---|---|---|---|---|---|---|
| 0002593 | Cuspidine | Piotrowski A, Kahlenberg V, Fischer R X (2000) Na2Ca2(P2O7)F2, the first diphosphate of the cuspidine family American Mineralogist 85 1534-1539 |  | 2000 | 0 | 293 | |
| 0002594 | Cuspidine | Piotrowski A, Kahlenberg V, Fischer R X (1999) Na2Ca2(P2O7)F2, the first diphosphate of the cuspidine family American Mineralogist 85 1534-1539 | | 1999 | 0 | 293 | |
| 0005460 | Cuspidine | Fleet M E, Pan Y (1995) The structure of NaCa2LuSi2O7F2, a synthetic phase of the cuspidine group The Canadian Mineralogist 33 879-884 | | 1995 | 0 | 293 | |
| 0007083 | Cuspidine | Bellezza M, Merlino S, Perchiazzi N (2004) Chemical and structural study of the Zr,Ti-disilicates in the venanzite from Pian di Celle, Umbria, Italy European Journal of Mineralogy 16 957-969 | 2004 | Pian di Celle, Umbria, Italy | 0 | 293 | |
| 0018273 | Cuspidine | Saburi S, Kawahara A, Henmi C, Kusachi I, Kihara K (1977) The refinement of the crystal structure of cuspidine Mineralogical Journal 8 286-298 | 1977 | Fuka, Okayama Prefecture, Japan | 0 | 293 | |
| 0018274 | Cuspidine | Smirnova R F, Rumanova I M, Belov N V (1955) Crystal structure of cuspidine Zapiski Vsesoyuznogo Mineralogicheskogo Obshchestva 84 159-169 | 1955 | 0 | 293 |
CIF Raw Data - click here to close
X-Ray Powder Diffraction
Loading XRD data...
Data courtesy of RRUFF project at University of Arizona, used with permission.
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 3.26 Å | (20) |
| 3.06 Å | (100) |
| 2.95 Å | (20) |
| 2.93 Å | (20) |
| 2.90 Å | (30) |
| 2.87 Å | (50) |
| 2.02 Å | (10) |
| 1.88 Å | (20) |
Comments:
41-1474
Geological Environment
Paragenetic Mode(s):
| Paragenetic Mode | Earliest Age (Ga) |
|---|---|
| High-? alteration and/or metamorphism | |
| 31 : Thermally altered carbonate, phosphate, and iron formations | |
| Stage 10a: Neoproterozoic oxygenation/terrestrial biosphere | <0.6 |
| 50 : Coal and/or oil shale minerals | <0.36 |
| Stage 10b: Anthropogenic minerals | <10 Ka |
| 54 : Coal and other mine fire minerals (see also #51 and #56) |
Type Occurrence of Cuspidine
Place of Conservation of Type Material:
No defined type material.
Synonyms of Cuspidine
Other Language Names for Cuspidine
Varieties of Cuspidine
| Germanium-bearing Cuspidine | Mean Ge content observed is 895 ppm. |
Relationship of Cuspidine to other Species
Member of:
Other Members of Wöhlerite Group:
| Baghdadite | Ca6Zr2(Si2O7)2O4 | Mon. 2/m : P21/b |
| Burpalite | Na2CaZr(Si2O7)F2 | Mon. 2/m : P21/b |
| Hiortdahlite | Na2Ca4(Ca0.5Zr0.5)Zr(Si2O7)2OF3 | Tric. 1 : P1 |
| Janhaugite | (Na,Ca)3(Mn2+,Fe2+)3(Ti,Zr,Nb)2(Si2O7)2O2(OH,F)2 | Mon. 2/m : P21/m |
| Låvenite | Na2Ca2Mn2Zr2(Si2O7)2O2F2 | Mon. 2/m : P21/b |
| Madeiraite | Na2Ca2Fe2Zr2(Si2O7)2O2F2 | Mon. 2/m : P21/b |
| Moxuanxueite | NaCa6Zr(Si2O7)2OF3 | Tric. 1 : P1 |
| Niocalite | (Ca,Nb)4(Si2O7)(O,OH,F)2 | Mon. m |
| Normandite | NaCa(Mn,Fe)(Ti,Nb,Zr)(Si2O7)OF | Mon. 2/m : P21/b |
| Pilanesbergite | Na2Ca2Fe2Ti2(Si2O7)2O2F2 | Mon. 2/m : P21/b |
| Wöhlerite | Na2Ca4ZrNb(Si2O7)2O3F | Mon. 2 : P21 |
Common Associates
Associated Minerals Based on Photo Data:
| 25 photos of Cuspidine associated with Calcite | CaCO3 |
| 16 photos of Cuspidine associated with Willemite | Zn2SiO4 |
| 16 photos of Cuspidine associated with Franklinite | Zn2+Fe3+2O4 |
| 11 photos of Cuspidine associated with Wollastonite | Ca3(Si3O9) |
| 7 photos of Cuspidine associated with Vesuvianite | Ca19Fe3+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(OH)9 |
| 7 photos of Cuspidine associated with Phlogopite | KMg3(AlSi3O10)(OH)2 |
| 7 photos of Cuspidine associated with Pectolite | NaCa2Si3O8(OH) |
| 5 photos of Cuspidine associated with Grossular | Ca3Al2(SiO4)3 |
| 4 photos of Cuspidine associated with Götzenite | NaCa6Ti(Si2O7)2OF3 |
| 4 photos of Cuspidine associated with Fluorapophyllite-(K) | KCa4(Si8O20)(F,OH) · 8H2O |
Related Minerals - Strunz-mindat Grouping
| 9.BE. | Zinkgruvanite | Ba4Mn2+4Fe3+2(Si2O7)2(SO4)2O2(OH)2 |
| 9.BE. | Calciomurmanite | (Na,◻)2Ca(Ti,Mg,Nb)4[Si2O7]2O2(OH,O)2(H2O)4 |
| 9.BE. | Cámaraite | Ba3Na(Fe2+,Mn)8Ti4(Si2O7)4O4(OH,F)7 |
| 9.BE. | Alfredcasparite | Sr2TiO(Si2O7) |
| 9.BE. | Batievaite-(Y) | Y2Ca2Ti(Si2O7)2(OH)2(H2O)4 |
| 9.BE. | Nacareniobsite-(Y) | Na3Ca3YNb(Si2O7)2OF3 |
| 9.BE. | Alexkuznetsovite-(Ce) | Ce2Mn(CO3)(Si2O7) |
| 9.BE. | Bobshannonite | Na2KBa(Mn,Na)8(Nb,Ti)4(Si2O7)4O4(OH)4(O,F)2 |
| 9.BE. | Paralomonosovite | Na6◻4Ti4(Si2O7)2[PO3OH][PO2(OH)2]O2(OF) |
| 9.BE. | Madeiraite | Na2Ca2Fe2Zr2(Si2O7)2O2F2 |
| 9.BE. | Bortolanite | Ca2(Ca1.5Zr0.5)Na(NaCa)Ti(Si2O7)2(OF)F2 |
| 9.BE. | Moxuanxueite | NaCa6Zr(Si2O7)2OF3 |
| 9.BE. | Delhuyarite-(Ce) | Ce4Mg(Fe3+,W)3◻(Si2O7)2O6(OH)2 |
| 9.BE. | Christofschäferite-(Ce) | Ce3CaMnTiFe3+Ti2(Si2O7)2O8 |
| 9.BE.X | Asimowite | Fe2+4O(Si2O7) |
| 9.BE. | Biraite-(La) | La2Fe2+(CO3)(Si2O7) |
| 9.BE. | Pilanesbergite | Na2Ca2Fe2Ti2(Si2O7)2O2F2 |
| 9.BE.02 | Wadsleyite | Mg4O(Si2O7) |
| 9.BE.02 | Ohtaniite | Mg3(Si0.5◻0.5)Si2O8 |
| 9.BE.05 | Lawsonite | CaAl2(Si2O7)(OH)2 · H2O |
| 9.BE.05 | Hennomartinite | SrMn3+2(Si2O7)(OH)2 · H2O |
| 9.BE.05 | Cortesognoite | CaV2(Si2O7)(OH)2 · H2O |
| 9.BE.05 | Noelbensonite | BaMn3+2(Si2O7)(OH)2 · H2O |
| 9.BE.05 | Itoigawaite | SrAl2(Si2O7)(OH)2 · H2O |
| 9.BE.07 | Ilvaite | CaFe3+Fe2+2(Si2O7)O(OH) |
| 9.BE.07 | Amamoorite | CaMn2+2Mn3+(Si2O7)O(OH) |
| 9.BE.07 | Manganilvaite | CaFe2+Fe3+Mn2+(Si2O7)O(OH) |
| 9.BE.10 | Suolunite | Ca2(H2Si2O7) · H2O |
| 9.BE.12 | Jaffeite | Ca6(Si2O7)(OH)6 |
| 9.BE.15 | Fresnoite | Ba2Ti(Si2O7)O |
| 9.BE.17 | Janhaugite | (Na,Ca)3(Mn2+,Fe2+)3(Ti,Zr,Nb)2(Si2O7)2O2(OH,F)2 |
| 9.BE.17 | Burpalite | Na2CaZr(Si2O7)F2 |
| 9.BE.17 | Niocalite | (Ca,Nb)4(Si2O7)(O,OH,F)2 |
| 9.BE.17 | Normandite | NaCa(Mn,Fe)(Ti,Nb,Zr)(Si2O7)OF |
| 9.BE.17 | Hiortdahlite | Na2Ca4(Ca0.5Zr0.5)Zr(Si2O7)2OF3 |
| 9.BE.17 | Låvenite | Na2Ca2Mn2Zr2(Si2O7)2O2F2 |
| 9.BE.17 | Wöhlerite | Na2Ca4ZrNb(Si2O7)2O3F |
| 9.BE.17 | Baghdadite | Ca6Zr2(Si2O7)2O4 |
| 9.BE.20 | Nacareniobsite-(Ce) | Na3Ca3(Ce,REE)Nb(Si2O7)2OF3 |
| 9.BE.20 | Roumaite | (Ca,Na,REE,◻)7(Nb,Ti)[Si2O7]2OF3 |
| 9.BE.20 | Rinkite-(Ce) | (Ca3Ce)Na(NaCa)Ti(Si2O7)2(OF)F2 |
| 9.BE.20 | Nacareniobsite-(Nd) | Ca2(CaNd)Na3Nb(Si2O7)2(OF)F2 |
| 9.BE.20 | Rinkite-(Y) | Na2Ca4YTi(Si2O7)2OF3 |
| 9.BE.20 | Mosandrite-(Ce) | (Ca3REE)[(H2O)2Ca0.5◻0.5]Ti(Si2O7)2(OH)2(H2O)2 |
| 9.BE.22 | Hainite-(Y) | Na2Ca4(Y,REE)Ti(Si2O7)2OF3 |
| 9.BE.22 | Rosenbuschite | Na6Ca6Zr3Ti(Si2O7)4O2F6 |
| 9.BE.22 | Götzenite | NaCa6Ti(Si2O7)2OF3 |
| 9.BE.22 | Fogoite-(Y) | Na3Ca2Y2Ti(Si2O7)2OF3 |
| 9.BE.22 | Kochite | Na3Ca2MnZrTi(Si2O7)2OF3 |
| 9.BE.23 | Dovyrenite | Ca6Zr(Si2O7)2(OH)4 |
| 9.BE.25 | Lamprophyllite | (Na,Mn2+)3(Sr,Na)2(Ti,Fe3+)3(Si2O7)2O2(OH,O,F)2 |
| 9.BE.25 | Seidozerite | Na4MnZr2Ti(Si2O7)2O2F2 |
| 9.BE.25 | Nabalamprophyllite | (BaNa)Ti2Na3Ti(Si2O7)2O2(OH)2 |
| 9.BE.25 | Schüllerite | Ba2Na(Mn,Ca)(Fe3+,Mg,Fe2+)2Ti2(Si2O7)2(O,F)4 |
| 9.BE.25 | Ericssonite | BaMn2+2Fe3+(Si2O7)O(OH) |
| 9.BE.25 | Grenmarite | Na4MnZr3(Si2O7)2O2F2 |
| 9.BE.25 | Kazanskyite | BaNa3Ti2Nb(Si2O7)2O2(OH)2(H2O)4 |
| 9.BE.25 | Saamite | Ba◻Na3Ti2Nb(Si2O7)2O2(OH)F(H2O)2 |
| 9.BE.25 | Emmerichite | Ba2Na(Na,Fe2+)2(Fe3+,Mg)Ti2(Si2O7)2O2F2 |
| 9.BE.25 | Barytolamprophyllite | (Ba,Na)2(Na,Ti,Fe3+)4Ti2(Si2O7)2O(OH,F) |
| 9.BE.25 | Ericssonite-2O | BaMn2+2Fe3+(Si2O7)O(OH) |
| 9.BE.25 | Fluorbarytolamprophyllite | (Ba,Sr)2[(Na,Fe2+)3(Ti,Mg)F2][Ti2(Si2O7)2O2] |
| 9.BE.25 | Fluorlamprophyllite | Na3(SrNa)Ti3(Si2O7)2O2F2 |
| 9.BE.25 | Lileyite | Ba2(Na,Fe,Ca)3MgTi2(Si2O7)2O2F2 |
| 9.BE.27 | Kolskyite | CaNa2Ti4(Si2O7)2O4(H2O)7 |
| 9.BE.27 | Vigrishinite | NaZnTi4(Si2O7)2O3(OH)(H2O)4 |
| 9.BE.27 | Selivanovaite | NaFe3+Ti4(Si2O7)2O4(H2O)4 |
| 9.BE.27 | Murmanite | Na2Ti2(Si2O7)O2 · 2H2O |
| 9.BE.30 | Epistolite | (Na◻)Nb2Na3Ti(Si2O7)2O2(OH)2(H2O)4 |
| 9.BE.32 | Lomonosovite | Na5Ti2(Si2O7)(PO4)O2 |
| 9.BE.35 | Vuonnemite | Na11Ti4+Nb2(Si2O7)2(PO4)2O3(F,OH) |
| 9.BE.37 | Sobolevite | Na13Ca2Mn2Ti3(Si2O7)2(PO4)4O3F3 |
| 9.BE.40 | Ferroinnelite | Ba4Ti2Na(NaFe2+)Ti(Si2O7)2[(SO4)(PO4)]O2[O(OH)] |
| 9.BE.40 | Phosphoinnelite | Na3Ba4Ti3(Si2O7)2(PO4,SO4)2O2F |
| 9.BE.40 | Innelite | Ba4Ti2Na(NaMn2+)Ti(Si2O7)2[(SO4)(PO4)]O2[O(OH)] |
| 9.BE.42 | Yoshimuraite | Ba2Mn2Ti(Si2O7)(PO4)O(OH) |
| 9.BE.42 | Horiite | Ba2Mn2Mn4Ti2(Si2O7)2(PO4)2O2(OH)2 |
| 9.BE.45 | Quadruphite | Na6Na2(CaNa)2Na2Ti2Na2Ti2(Si2O7)2(PO4)4O4F2 |
| 9.BE.47 | Polyphite | Na5(Na4Ca2)Ti2(Si2O7)(PO4)3O2F2 |
| 9.BE.50 | Shkatulkalite | Na2Nb2Na3Ti(Si2O7)2O2(FO)(H2O)4(H2O)3 |
| 9.BE.50 | Bornemanite | Na6BaTi2Nb(Si2O7)2(PO4)O2(OH)F |
| 9.BE.55 | Hejtmanite | Ba2Mn2+4Ti2(Si2O7)2O2(OH)2F2 |
| 9.BE.55 | Bykovaite | (Ba,Na,K)2(Na,Ti,Mn)4(Ti,Nb)2(Si2O7)2O2(H2O,F,OH)2 · 3.5H2O |
| 9.BE.55 | Nechelyustovite | (Ba,Sr,K)2(Na,Ti,Mn)4(Ti,Nb)2(Si2O7)2O2(O,H2O,F)2 · 4.5H2O |
| 9.BE.55 | Bafertisite | Ba2Fe2+4Ti2(Si2O7)2O2(OH)2F2 |
| 9.BE.60 | Delindeite | (Na,K)2(Ba,Ca)2(Ti,Fe,Al)3(Si2O7)2O2(OH)2 · 2H2O |
| 9.BE.62 | Orthochevkinite | (Ce,La,Ca,Na,Th)4(Fe2+,Mg)2(Ti,Fe3+)3Si4O22 |
| 9.BE.62 va | Strontium Perrierite | (Ce,Sr,La,Ca)4Fe2+(Ti,Zr,Fe)2Ti2(Si2O7)2O8 |
| 9.BE.62 | Chevkinite-(Nd) | (Nd,REE)4(Fe2+,Mg)(Fe2+,Ti,Fe3+)2(Ti,Fe3+)2(Si2O7)2O8 ? |
| 9.BE.62 | Perrierite-(Nd) | Nd4MgFe3+2Ti2(Si2O7)2O8 ? |
| 9.BE.65 | Bussenite | Na2Ba2Fe2+Ti(Si2O7)(CO3)(OH)3F |
| 9.BE.67 | Jinshajiangite | BaNaFe2+4Ti2(Si2O7)2O2(OH)2F |
| 9.BE.67 | Perraultite | BaNaMn2+4Ti2(Si2O7)2O2(OH)2F |
| 9.BE.70 | Dingdaohengite-(Ce) | (Ce,La)4Fe2+(Ti,Fe2+,Mg,Fe3+)2Ti2(Si2O7)2O8 |
| 9.BE.70 | Perrierite-(Ce) | Ce4MgFe3+2Ti2O8(Si2O7)2 |
| 9.BE.70 | Karnasurtite-(Ce) | (Ce,La,Th)(Ti,Nb)(Al,Fe)(Si2O7)(OH)4 · 3H2O |
| 9.BE.70 | Maoniupingite-(Ce) | (Ce,Ca)4(Fe3+,Ti,Fe2+,◻)(Ti,Fe3+,Fe2+,Nb)4(Si2O7)2O8 |
| 9.BE.70 | Matsubaraite | Sr4Ti5(Si2O7)2O8 |
| 9.BE.70 | Rengeite | Sr4ZrTi4(Si2O7)2O8 |
| 9.BE.70 | Polyakovite-(Ce) | (Ce,Ca)4(Mg,Fe2+)(Cr3+,Fe3+)2(Ti,Nb)2(Si2O7)2O8 |
| 9.BE.70 | Hezuolinite | (Sr,REE)4Zr(Ti,Fe3+)4(Si2O7)2O8 |
| 9.BE.70 | UM2008-53-SiO:SrTiZr | Sr4ZrTi4(Si2O7)2O8 |
| 9.BE.70 | Chevkinite-(Ce) | Ce4(Ti,Fe2+,Fe3+)5O8(Si2O7)2 |
| 9.BE.70 | Perrierite-(La) | (La,Ce,Ca)4(Fe2+,Mn)(Ti,Fe3+,Al)4[(Si2O7)O4]2 |
| 9.BE.70 | Strontiochevkinite | (Sr,La,Ce,Ca)4Fe2+(Ti,Zr)2Ti2(Si2O7)2O8 |
| 9.BE.72 | Fersmanite | Ca4(Na,Ca)4(Ti,Nb)4(Si2O7)2O8F3 |
| 9.BE.75 | Belkovite | Ba3(Nb,Ti)6(Si2O7)2O12 |
| 9.BE.77 | Nasonite | Pb6Ca4(Si2O7)3Cl2 |
| 9.BE.80 | Melanotekite | Pb2Fe3+2(Si2O7)O2 |
| 9.BE.80 | Kentrolite | Pb2Mn3+2(Si2O7)O2 |
| 9.BE.82 | Alexkuznetsovite-(La) | La2Mn(CO3)(Si2O7) |
| 9.BE.82 | Tilleyite | Ca5(Si2O7)(CO3)2 |
| 9.BE.85 | Killalaite | Ca6.4(H0.6Si2O7)2(OH)2 |
| 9.BE.87 | Stavelotite-(La) | (La,Nd,Ca)3Mn2+3Cu(Mn3+,Fe3+,Mn4+)26(Si2O7)6O30 |
| 9.BE.90 | Magnesiorowlandite-(Y) | Y4(Mg,Fe)(Si2O7)2F2 |
| 9.BE.90 | Biraite-(Ce) | Ce2Fe2+(Si2O7)(CO3) |
| 9.BE.92 | Cervandonite-(Ce) | (Ce,Nd,La)(Fe3+,Fe2+,Ti,Al)3O2(Si2O7)(As3+O3)(OH) |
| 9.BE.92 | Chirvinskyite | (Na,Ca)13(Fe,Mn,◻)2(Ti,Zr)5(Si2O7)4(OH,O)12 · 2H2O |
| 9.BE.95 | Rusinovite | Ca10(Si2O7)3Cl2 |
| 9.BE.95 | Batisivite | BaV3+8Ti6(Si2O7)O22 |
| 9.BE.97 | Schlüterite-(Y) | (Y,REE)2AlSi2O7(OH)2F |
Fluorescence of Cuspidine
Franklin: SW = medium yellow to pale violet LW = strong yellow to pale violet
Other Information
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 Cuspidine
mindat.org URL:
https://www.mindat.org/min-1198.html
Please feel free to link to this page.
Please feel free to link to this page.
Search Engines:
External Links:
References for Cuspidine
Reference List:
Umpleby, J. B.; Schaller, W. T.; Larsen, E. S. (1914) Custerit, ein neues kontaktmetamorphes Mineral. Zeitschrift für Kristallographie, 53 (1-6). 321-331 doi:10.1524/zkri.1914.53.1.321(as custerite)
Tilley, C. E. (1947) Cuspidine from dolomite contact skarns, Broadford, Skye. Mineralogical Magazine and Journal of the Mineralogical Society, 28 (197) 90-95 doi:10.1180/minmag.1947.028.197.03
Van Valkenburg, A., Rynders, G. F. (1958) Synthetic cuspidine. American Mineralogist, 43 (11-12). 1195-1202
Localities for Cuspidine
symbol to view information about a locality.
The Locality List
- 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).
All localities listed without proper references should be considered as questionable.
Angola | |
| Campeny et al. (2015) +1 other reference |
Australia | |
| Henry (1999) |
Brazil | |
| Kaminsky et al. (2015) |
| Gomes et al. (2023) |
Canada | |
| OWENS et al. (2010) |
| Modris Baum collection - Joy Desor ... |
China | |
| Ottens et al. (2014) |
| Möhn et al. (05/2021) | |
| Chengdian Pen (1986) |
| Xu Jinsha et al. (2019) | |
Czech Republic | |
| Hršelová et al. (2013) |
DR Congo | |
| Andersen et al. (2014) |
France | |
| publication date: November 2018 +1 other reference |
Georgia | |
| Środek et al. (2018) |
Germany | |
| Hentschel (1978) +1 other reference |
| Galuskin et al. (2016) | |
| in the collection of Christof Schäfer | |
| in the collection of Christof Schäfer | |
| in the collection of Christof Schäfer +1 other reference | |
| in the collection of Christof Schäfer | |
| Blaß et al. (2014) +1 other reference |
| Witzke et al. (1998) |
Greece | |
| Kolitsch et al. (2014) |
Indonesia | |
| Knuever et al. (2023) | |
Iraq | |
| Al-Hermezi et al. (1986) |
Ireland | |
| Bull. Soc. Franç. Minéralo. ... |
| Nockolds et al. (1947) |
Israel | |
| Galuskin et al. (2015) |
| Juroszek et al. (2025) |
| Galuskina et al. (2017) +1 other reference | |
| Pekov et al. (2022) | |
| Galuskin EV +1 other reference | |
| Galuskina et al. (2025) | |
| Futrzyński et al. (2023) |
| Britvin et al. (2025) |
Italy | |
| M. Carati: Guida alla mineralogia vesuviana. Bologna (1982) +1 other reference |
| [Lapis 1994:5 p.13-23 +1 other reference |
| Panikorovskii et al. (2017) | |
| Federico et al. (2002) +1 other reference |
| De Michele (1974) | |
| in the collection of Christof Schäfer | |
| Dario Di Domenico collection |
| Cavarretta et al. (1987) +2 other references | |
| Stoppani et al. (1982) |
| Signoretti et al. (2001) |
| M.E. Ciriotti (2005) |
| Lapis 28 (12) | |
| Liotti L. (Grosseto) |
| Stoppa et al. (2014) |
| Sabatini (1899) +9 other references |
Japan | |
| Yamada (2004) |
| Mandarino (1996) +1 other reference |
| Matsueda (1983) |
Jordan | |
| Galuskina et al. (2019) |
Mexico | |
| Mitchell et al. (2025) |
Middle East | |
| Gross (1977) | |
Namibia | |
| Dunn (1991) |
New Zealand | |
| Railton et al. (1990) |
Norway | |
| Jamtveit et al. (1997) +1 other reference |
Palestine | |
| Seryotkin et al. (2012) +1 other reference |
Poland | |
| Kruszewski et al. (Lower Silesian Coal Basin) +1 other reference |
| Ł. Kruszewski PXRD & EPMA data + field ... |
| Kruszewski (2006) |
Romania | |
| Szakáll |
| Szakáll et al. (2010) | |
| Marincea et al. (2011) |
| Pascal et al. (2001) |
| Pascal et al. (2001) | |
Russia | |
| Kislov +1 other reference |
| Simakin et al. (2019) | |
| Sharygin (2015) |
| Zateeva et al. (2007) | |
| Cesnokov et al. (1998) | |
| Lazic et al. (2011) |
| Bailau |
| Galuskina et al. (2013) |
| Galuskina et al. (2010) | |
| Galuskin +10 other references | |
| Pavel.M. Kartashov (n.d.) |
| Gramenitskiy et al. (2019) | |
| Sokol et al. (2019) +3 other references |
| Reverdatto et al. (1979) |
| Sharygin et al. (2010, September) |
| Potter et al. (2017) |
| ... | |
| Veksler et al. (1998) |
| Keith Bell et al. (1996) +1 other reference |
| Sharygin et al. (2008) |
| Ерохин Ю.В. |
| Andreeva et al. (2006) +1 other reference |
South Africa | |
| Buick (2000) | |
| Giuliani et al. (2017) |
Spain | |
| Coello et al. (92) +10 other references |
| Casillas et al. (2011) | |
| Dill et al. (2023) |
| Dill et al. (2023) |
Tanzania | |
| Mitchell et al. (2004) +1 other reference |
| Zaitsev et al. (2012) | |
Turkey | |
| Taner et al. (2013) |
UK | |
| Tilley (1947) |
| Tilley (1947) |
| Agrell (1965) |
Ukraine | |
| V.V. Sharygin (2011) |
| Шарыгин (2015) |
USA | |
| Tilley (1947) +2 other references |
| Ream (1995) |
| Palache (1935) +1 other reference |
| Chris O'neill | |
| Valley et al. (1980) |
Quick NavTopAbout CuspidineUnique IdentifiersIMA Classification Classification Mineral SymbolsPhysical Properties Optical Data Chemistry Crystallography Crystal StructureX-Ray Powder DiffractionGeological EnvironmentType Occurrence SynonymsOther LanguagesVarietiesRelationshipsCommon AssociatesStrunz-MindatFluorescence Other InformationInternet Links References Localities Locality List
San Vito Quarry, San Vito, Ercolano, Metropolitan City of Naples, Campania, Italy