Cassagnaite (original) (raw)
A valid IMA mineral species
About CassagnaiteHide
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Formula:
(Ca,Mn2+)4(Fe3+,Mn3+,Al)4(V3+,Mg,Al)2(Si3O10)(SiO4)2(OH,O)8
Specific Gravity:
3.22 (Calculated)
Crystal System:
Orthorhombic
Name:
Named by R. Basso, C. Carbone, and A. Palenzona in 2008 after the type locality, the Cassagna Mine, Graveglia Valley, Ne, Genova Province, Liguria, Italy.
This page provides mineralogical data about Cassagnaite.
Unique IdentifiersHide
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Long-form identifier:
mindat:1:1:31591:7
e532e523-6053-4c65-b585-81a1d411ce59
IMA Classification of CassagnaiteHide
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IMA Formula:
Ca4Fe3+4V3+2(OH)6O2(Si3O10)(SiO4)2
Type description reference:
Basso, Riccardo, Carbone, Cristina, Palenzona, Andrea (2008) Cassagnaite, a new, V-bearing silicate mineral from the Cassagna mine, northern Apennines, Italy. European Journal of Mineralogy, 20 (1) 95-100 doi:10.1127/0935-1221/2007/0019-1777
Classification of CassagnaiteHide
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9.BJ.65
9 : SILICATES (Germanates)
B : Sorosilicates
J : Sorosilicates with Si3O10, Si4O11, etc. anions; cations in octahedral [6] and greater coordination
Mineral SymbolsHide
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As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
| Symbol | Source | Reference |
|---|---|---|
| Csg | 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 CassagnaiteHide
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Density:
3.22 g/cm3 (Calculated)
Chemistry of CassagnaiteHide
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Mindat Formula:
(Ca,Mn2+)4(Fe3+,Mn3+,Al)4(V3+,Mg,Al)2(Si3O10)(SiO4)2(OH,O)8
Crystallography of CassagnaiteHide
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Crystal System:
Orthorhombic
Class (H-M):
m m m _(_2/_m_2/_m_2/m ) - Dipyramidal
Cell Parameters:
a = 6.066(1) Å, b = 8.908(1) Å, c = 18.995(2) Å
Ratio:
a:b:c = 0.681 : 1 : 2.132
Unit Cell V:
1,026.41 ų (Calculated from Unit Cell)
Morphology:
Prism {011} and the pinacoids {001} and {100}.
Crystal StructureHide
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| ID | Species | Reference | Link | Year | Locality | Pressure (GPa) | Temp (K) |
|---|---|---|---|---|---|---|---|
| 0007254 | Cassagnaite | Basso R, Carbone C, Palenzona A (2008) Cassagnaite, a new, V-bearing silicate mineral from the Cassagna mine, northern Apennines, Italy European Journal of Mineralogy 20 95-100 | 2008 | Cassagna mine, northern Apennines, Liguria, Italy | 0 | 293 |
CIF Raw Data - click here to close
X-Ray Powder DiffractionHide
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Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 9.52 Å | (100) |
| 2.66 Å | (70) |
| 2.54 Å | (65) |
| 4.85 Å | (50) |
| 4.98 Å | (45) |
| 4.03 Å | (40) |
| 2.32 Å | (40) |
Geological EnvironmentHide
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Type Occurrence of CassagnaiteHide
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General Appearance of Type Material:
Fracture fillings in braunite + quartz layered mineralizations. Very rare isolated prismatic to tabular crystals < 0.06 mm. A few crystal aggregates to 1 mm.
Place of Conservation of Type Material:
Dipartimento per lo Studio del Territorio e delle sue Risorse (Dip.Te.Ris), University of Genoa, Italy.
Geological Setting of Type Material:
Hydrothermal alteration of braunite-bearing layered mineralization and metacherts.
Associated Minerals at Type Locality:
Reference:
Basso, R., Carbone, C., Palenzona, A. (2008) Cassagnaite, a new V-bearing silicate mineral from the Cassagna mine, northern Apennines, Italy. European Journal of Mineralogy: 20: 95-100.
Synonyms of CassagnaiteHide
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Other Language Names for CassagnaiteHide
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Common AssociatesHide
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Associated Minerals Based on Photo Data:
Related Minerals - Strunz-mindat GroupingHide
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| 9.BJ. | Arsenmedaite | Mn2+6 As5+Si5O18(OH) | Mon. 2/m |
|---|---|---|---|
| 9.BJ.05 | Orientite | Ca8Mn3+10(SiO4)3(Si3O10)3(OH)10 · 4H2O | Orth. m m m _(_2/_m_2/_m_2/m ) |
| 9.BJ.10 | Rosenhahnite | HCa3[Si3O9(OH)] | Tric. 1 : _P_1 |
| 9.BJ.15 | Trabzonite | Ca4(Si3O9)(OH)2 | Orth. m _m_2 : A m _a_2 |
| 9.BJ.20 | Thalénite-(Y) | Y3Si3O10F | Mon. |
| 9.BJ.25 | Tiragalloite | Mn2+4As5+Si3O12(OH) | Mon. 2/m |
| 9.BJ.30 | Medaite | Mn2+6V5+Si5O18(OH) | Mon. 2/m |
| 9.BJ.35 | Ruizite | Ca2Mn3+2[Si4O11(OH)2](OH)2 · 2H2O | Mon. 2 |
| 9.BJ.35 | Taniajacoite | SrCaMn3+2Si4O11(OH)4 · 2H2O | Tric. 1 |
| 9.BJ.35 | Strontioruizite | Sr2Mn3+2Si4O11(OH)4 · 2H2O | Mon. 2 : _B_2 |
| 9.BJ.40 | Ardennite-(As) | Mn2+4Al4(AlMg)(AsO4)(SiO4)2(Si3O10)(OH)6 | Orth. m m m _(_2/_m_2/_m_2/m ) |
| 9.BJ.40 | Ardennite-(V) | Mn2+4Al4(AlMg)(VO4)(SiO4)2(Si3O10)(OH)6 | Orth. m m m _(_2/_m_2/_m_2/m ) : P m m n |
| 9.BJ.40 | Kannanite | Ca4Al4(AlMg)(VO4)(SiO4)2(Si3O10)(OH)6 | Orth. m m m _(_2/_m_2/_m_2/m ) : P m m n |
| 9.BJ.40 | Alpeite | Ca4Mn3+2Al2(Mn3+Mg)(SiO4)2(Si3O10)(V5+O4)(OH)6 | Orth. m m m _(_2/_m_2/_m_2/m ) : P m m n |
| 9.BJ.45 | Kilchoanite | Ca6(SiO4)(Si3O10) | Orth. m m m _(_2/_m_2/_m_2/m ) |
| 9.BJ.50 | Kornerupine | Mg3Al6(Si,Al,B)5O21(OH) | Orth. m m m _(_2/_m_2/_m_2/m ) : C m c m |
| 9.BJ.50 | Prismatine | (◻,Fe,Mg)(Mg,Al,Fe)5Al4Si2(Si,Al)2(B,Si,Al)(O,OH,F)22 | Orth. m m m _(_2/_m_2/_m_2/m ) : C m c m |
| 9.BJ.55 | Zunyite | Al13Si5O20(OH,F)18Cl | Iso. 43_m_ : F_43_m |
| 9.BJ.60 | Hubeite | Ca2Mn2+Fe3+Si4O12(OH) · 2H2O | Tric. 1 : _P_1 |
| 9.BJ.70 | Pavlovskyite | Ca8(SiO4)2(Si3O10) | Orth. m m m _(_2/_m_2/_m_2/m ) : P b c n |
Fluorescence of CassagnaiteHide
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Other InformationHide
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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 CassagnaiteHide
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References for CassagnaiteHide
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Reference List:
Basso, Riccardo, Carbone, Cristina, Palenzona, Andrea (2008) Cassagnaite, a new, V-bearing silicate mineral from the Cassagna mine, northern Apennines, Italy. European Journal of Mineralogy, 20 (1) 95-100 doi:10.1127/0935-1221/2007/0019-1777
Localities for CassagnaiteHide
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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
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- 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.
| Italy (TL) | |
|---|---|
| Liguria Genoa Ne ⓘ Cassagna Mine (TL) | Basso et al. (2008) +1 other reference |
| Spain | |
| Canary Islands Santa Cruz de Tenerife Province Tenerife ⓘ Los Humilladeros | Dill et al. (2023) |