Sveinbergeite
A valid IMA mineral species
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About Sveinbergeite
Svein Arne Berge
Formula:
(H2O)2[Ca(H2O)](Fe2+6Fe3+)Ti2[Si4O12]2O2(OH)4[(OH)(H2O)]
Colour:
Deep green
Lustre:
Vitreous, Pearly
Hardness:
3
Specific Gravity:
3.152 (Calculated)
Crystal System:
Triclinic
Member of:
Name:
Named in honour of Svein Arne Berge (b. 1949), a noted Norwegian
amateur mineralogist and collector who has made a significant contribution to the mineralogy of the alkaline pegmatites in the Larvik plutonic complex, Norway and who was the first to find the mineral in 1987.
amateur mineralogist and collector who has made a significant contribution to the mineralogy of the alkaline pegmatites in the Larvik plutonic complex, Norway and who was the first to find the mineral in 1987.
Type Locality:
This page provides mineralogical data about Sveinbergeite.
Unique Identifiers
Mindat ID:
40285
Long-form identifier:
mindat:1:1:40285:1
Similar Names
| Svanbergite | A valid IMA mineral species - grandfathered | SrAl3(PO4)(SO4)(OH)6 |
IMA Classification of Sveinbergeite
Approved
IMA Formula:
(H2O)2[Ca(H2O)](Fe2+6Fe3+)Ti4+2(Si4O12)2O2(OH)4[OH(H2O)]
Approval year:
2010
Classification of Sveinbergeite
9.DC.05
9 : SILICATES (Germanates)
D : Inosilicates
C : Inosilicates with branched 2-periodic single chains; Si2O6 + 2SiO3 Si4O12
9 : SILICATES (Germanates)
D : Inosilicates
C : Inosilicates with branched 2-periodic single chains; Si2O6 + 2SiO3 Si4O12
69.1.1.6
69 : INOSILICATES Chains with Side Branches or Loops
1 : Chains with Side Branches or Loops with (P=2, and N=4, 2 branches)
69 : INOSILICATES Chains with Side Branches or Loops
1 : Chains with Side Branches or Loops with (P=2, and N=4, 2 branches)
Mineral Symbols
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 |
|---|---|---|
| Sve | 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 Sveinbergeite
Vitreous, Pearly
Colour:
Deep green
Streak:
Pale green
Hardness:
3 on Mohs scale
Hardness Data:
Measured
Cleavage:
Perfect
on {001}
on {001}
Density:
3.152 g/cm3 (Calculated)
Optical Data of Sveinbergeite
Type:
Biaxial (+)
RI values:
nα = 1.745 - 2 nβ = 1.746 - 2 nγ = 1.753 - 2
2V:
Measured: 20° (3)
Surface Relief:
Very High (positive)
Relative to Canada balsam mounting medium (n ≈ 1.537).
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.
In focus
Interference Figure:
This shows the idealized biaxial acute bisectrix (Bxa) interference figure
- the conoscopic view for a grain cut perpendicular to the acute bisectrix, using
this mineral's 2V. The two small white dots mark the melatopes - the points
where the two optic axes emerge - and are shown only when they fall within the
field of view. The coloured bands are isochromatics, and the dark bands are
isogyres.
Rotate the stage: at 0°/90° the isogyres form a cross through the melatopes; at 45° they pull apart into curved hyperbolas. That splitting on rotation - absent in a uniaxial figure - is the standard diagnostic test for telling biaxial minerals from uniaxial ones. If 2V is large, the melatopes may fall outside the field of view, as they often do at the microscope too.
Rotate the stage: at 0°/90° the isogyres form a cross through the melatopes; at 45° they pull apart into curved hyperbolas. That splitting on rotation - absent in a uniaxial figure - is the standard diagnostic test for telling biaxial minerals from uniaxial ones. If 2V is large, the melatopes may fall outside the field of view, as they often do at the microscope too.
Pleochroism:
Visible
Comments:
Z > X ~ Y : Z is deep green, X and Y are brownish green.
Chemistry of Sveinbergeite
Mindat Formula:
(H2O)2[Ca(H2O)](Fe2+6Fe3+)Ti2[Si4O12]2O2(OH)4[(OH)(H2O)]
Element Weights:
Crystallography of Sveinbergeite
Crystal System:
Triclinic
Class (H-M):
1 - Pinacoidal
Space Group:
P1
Cell Parameters:
a = 5.33(1) Å, b = 11.82(2) Å, c = 11.85(2) Å
α = 101.2(1)°, β = 98.2(1)°, γ = 102.5(2)°
α = 101.2(1)°, β = 98.2(1)°, γ = 102.5(2)°
Ratio:
a:b:c = 0.451 : 1 : 1.003
Unit Cell V:
701.56 ų (Calculated from Unit Cell)
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) |
|---|---|---|---|---|---|---|---|
| 0018570 | Sveinbergeite | Khomyakov A P, Camara F, Sokolova E, Abdu Y, Hawthorne F C (2011) Sveinbergeite, Ca(Fe2+6Fe3+)Ti2(Si4O12)2O2(OH)5(H2O)4, a new astrophyllite-group mineral from the Larvik Plutonic Complex, Oslo Region, Norway: description and crystal structure Mineralogical Magazine 75 2687-2702 | 2011 | Larvik Plutonic Complex, Oslo Region, Norway | 0 | 293 |
CIF Raw Data - click here to close
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 11.148 Å | (20) |
| 5.683 Å | (5) |
| 3.799 Å | (43) |
| 2.853 Å | (100) |
| 2.633 Å | (7) |
| 2.489 Å | (5) |
| 2.267 Å | (5) |
| 1.643 Å | (5) |
Geological Environment
Paragenetic Mode(s):
| Paragenetic Mode | Earliest Age (Ga) |
|---|---|
| Near-surface Processes | |
| 22 : Hydration and low-? subsurface aqueous alteration (see also #23) | |
| Stage 4b: Highly evolved igneous rocks | >3.0 |
| 34 : Complex granite pegmatites |
Type Occurrence of Sveinbergeite
General Appearance of Type Material:
As 0.01-0.05 mm thick lamellar (0.2-0.5 X 5-10mm crystals forming rosette-like divergent groups and spherical aggregates. Often covered by brown coatings of iron (and possibly manganese) oxides.
Place of Conservation of Type Material:
Fersman Mineralogical Museum, Moscow,
Russia, catalogue number 3966
Russia, catalogue number 3966
Geological Setting of Type Material:
A syenite pegmatite embedded in larvikite in the Larvik plutonic complex in the southern part of the Oslo Region, Norway.
Synonyms of Sveinbergeite
Other Language Names for Sveinbergeite
Dutch:Sveinbergeiet
German:Sveinbergeit
Relationship of Sveinbergeite to other Species
Member of:
Other Members of Devitoite Group:
| Devitoite | Ba4Ba2Fe2+7Fe3+2[Si4O12]2[PO4]2[CO3]O2(OH)4◻2 | Tric. 1 : P1 |
| Lobanovite | K2Na(Fe2+4Mg2Na)Ti2[Si4O12]2O2(OH)4◻ | Mon. 2/m : B2/m |
Common Associates
Associations Based on Photo Data:
| 1 photo of Sveinbergeite associated with Hochelagaite | (Ca,Na,Sr)(Nb,Ti,Si,Al)4O11 · 8H2O |
| 1 photo of Sveinbergeite associated with Aegirine | NaFe3+Si2O6 |
Related Minerals - Strunz-mindat Grouping
| 9.DC. | Bulgakite | Li2CaFe2+7Ti2[Si4O12]2O2(OH)4O(H2O)2 |
| 9.DC.05 | Devitoite | Ba4Ba2Fe2+7Fe3+2[Si4O12]2[PO4]2[CO3]O2(OH)4◻2 |
| 9.DC.05 | Zircophyllite | K2NaFe2+7Zr2[Si4O12]2O2(OH)4F |
| 9.DC.05 | Nalivkinite | Li2NaFe2+7Ti2[Si4O12]2O2(OH)4F(H2O)2 |
| 9.DC.05 | Niobophyllite | K2NaFe2+7(NbTi)[Si4O12]2O2(OH)4O |
| 9.DC.05 | Heyerdahlite | Na2NaMn2+7Ti2[Si4O12]2O2(OH)4F(H2O)2 |
| 9.DC.05 | Tarbagataite | (K◻)CaFe2+7Ti2[Si4O12]2O2(OH)4(OH) |
| 9.DC.05 | Astrophyllite | K2NaFe2+7Ti2[Si4O12]2O2(OH)4F |
| 9.DC.05 | 'Hydroastrophyllite' | [H3O]+2CaFe2+7Ti2[Si4O12]2O2(OH)4O |
| 9.DC.05 | Lobanovite | K2Na(Fe2+4Mg2Na)Ti2[Si4O12]2O2(OH)4◻ |
| 9.DC.05 | Niobokupletskite | K2NaMn2+7(NbTi)[Si4O12]2O2(OH)4O |
| 9.DC.05 | Kupletskite-(Cs) | Cs2NaMn2+7Ti2[Si4O12]2O2(OH)4F |
| 9.DC.05 | Kupletskite | K2NaMn2+7Ti2[Si4O12]2O2(OH)4F |
| 9.DC.05 | Laverovite | K2NaMn2+7Zr2[Si4O12]2O2(OH)4F |
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 Sveinbergeite
mindat.org URL:
https://www.mindat.org/min-40285.html
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References for Sveinbergeite
Reference List:
Williams, P. A., Hatert, F., Pasero, M., Mills, S. J. (2010) New minerals and nomenclature modifications approved in 2010, CNMNC Newsletter No 5. Mineralogical Magazine, 74 (5) 859-862 doi:10.1180/s0026461x00056887
Berge, Svein Arne, Larsen, Knut Edvard, Andersen, Frode (2011) Buer, Vesterøya, Sandefjord- en typelokalitet for et nytt mineral [Buer, Vesterøya, Sandefjord - a type locality for a new mineral]. Norsk Bergverksmuseum Skrift, 46. 49-56
Khomyakov, A. P., Cámara, F., Sokolova, E., Abdu, Y., Hawthorne, F. C. (2011) Sveinbergeite, Ca(Fe2+6 Fe3+)Ti2(Si4O12)2O2(OH)5(H2O)4, a new astrophyllite-group mineral from the Larvik Plutonic Complex, Oslo Region, Norway: description and crystal structure. Mineralogical Magazine, 75 (5) 2687-2702 doi:10.1180/minmag.2011.075.5.2687
Localities for Sveinbergeite
Showing 1 localities.
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.
Norway (TL) | |
| Williams et al. (2010) +1 other reference |
Quick NavTopAbout SveinbergeiteUnique IdentifiersSimilar NamesIMA Classification Classification Mineral SymbolsPhysical Properties Optical Data Chemistry Crystallography Crystal StructureX-Ray Powder DiffractionGeological EnvironmentType Occurrence SynonymsOther LanguagesRelationshipsCommon AssociatesStrunz-MindatOther InformationInternet Links References Localities Locality List
Buer, Vesterøya, Sandefjord, Vestfold, Norway