Rubicline
A valid IMA mineral species
This page is currently not sponsored. Click here to sponsor this page.
About Rubicline
Formula:
Rb(AlSi3O8)
Colour:
Colourless
Lustre:
Vitreous
Crystal System:
Monoclinic
Member of:
Name:
The name reflects its compositional and structural attributes as the rubidium analog of microcline.
Feldspar Group
Unique Identifiers
Mindat ID:
7276
Long-form identifier:
mindat:1:1:7276:8
GUID
(UUID V4):
(UUID V4):
73cc0166-1415-4083-a884-b3c7d3ba0705
IMA Classification of Rubicline
Approved
Classification of Rubicline
9.FA.30
9 : SILICATES (Germanates)
F : Tektosilicates without zeolitic H2O
A : Tektosilicates without additional non-tetrahedral anions
9 : SILICATES (Germanates)
F : Tektosilicates without zeolitic H2O
A : Tektosilicates without additional non-tetrahedral anions
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 |
|---|---|---|
| Rub | 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 Rubicline
Vitreous
Transparency:
Transparent
Colour:
Colourless
Tenacity:
Brittle
Cleavage:
Perfect
{001} perfect and {010} good
{001} perfect and {010} good
Optical Data of Rubicline
Type:
Biaxial
RI values:
nα = 1.520 nβ = 1.524 nγ = 1.527
Max Birefringence:
δ = 0.007
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
and does not take into account mineral colouration.
Surface Relief:
Low
Dispersion:
strong
Chemistry of Rubicline
Mindat Formula:
Rb(AlSi3O8)
Elements listed:
Crystallography of Rubicline
Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
B2/m
Setting:
C2/m
Cell Parameters:
a = 8.839(2) Å, b = 13.035(2) Å, c = 7.175(2) Å
β = 116.11(1)°
β = 116.11(1)°
Ratio:
a:b:c = 0.678 : 1 : 0.55
Unit Cell V:
742.32 ų (Calculated from Unit Cell)
Z:
4
Comment:
synthetic
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) |
|---|---|---|---|---|---|---|---|
| 0009393 | Rubicline | Gasperin M (1971) Structure cristalline de RbAlSi3O8 _cod_database_code 1001771 Acta Crystallographica B27 854-855 |  | 1971 | 0 | 293 | |
| 0014559 | Rubicline | Kyono A, Kimata M (2001) Refinement of the crystal structure of a synthetic non-stoichiometric Rb-feldspar Mineralogical Magazine 65 523-531 |  | 2001 | synthetic | 0 | 293 |
CIF Raw Data - click here to close
Geological Environment
Paragenetic Mode(s):
| Paragenetic Mode | Earliest Age (Ga) |
|---|---|
| Stage 4b: Highly evolved igneous rocks | >3.0 |
| 34 : Complex granite pegmatites |
Type Occurrence of Rubicline
General Appearance of Type Material:
small (<50 μm) rounded grains in 1–2 cm wide veins
Place of Conservation of Type Material:
The original sample was a single unregistered fragment from the Ecole des Mines, Paris collection. Two halves of the type material are deposited in the R.B. Ferguson Museum of Mineralogy, University of Manitoba under catalogue numbers M 6980 and M 6981.
Associated Minerals at Type Locality:
Reference:
Teerstra, D.K., Cerny, P., Hawthorne, F.C., Pier, J., Wang, Lu-Min, & Ewing, R.C. (1998) Rubicline, a new feldspar from San Piero in Campo, Elba, Italy. American Mineralogist 83, 1335-1339.
Synonyms of Rubicline
Other Language Names for Rubicline
German:Rubiklin
Relationship of Rubicline to other Species
Member of:
Other Members of this group:
| Anorthoclase | (Na,K)AlSi3O8 | Tric. |
| Ferrisanidine | K[Fe3+Si3O8] | Mon. 2/m : B2/m |
| Hyalophane | (K,Ba)[Al(Si,Al)Si2O8] | Mon. |
| K Feldspar | Potassium-dominant feldspars with variable crystal symmetry and Al-Si ordering state; they are a subgroup of ... |
Common Associates
Associated Minerals Based on Photo Data:
Related Minerals - Strunz-mindat Grouping
| 9.FA. | Hexacelsian | BaAl2Si2O8 |
| 9.FA. | Wodegongjieite | KCa3(Al7Si9)O32 |
| 9.FA.05 | Kaliophilite | KAlSiO4 |
| 9.FA.05 | Kalsilite | KAlSiO4 |
| 9.FA.05 | Nepheline | Na3K(Al4Si4O16) |
| 9.FA.05 | Panunzite | (K,Na)AlSiO4 |
| 9.FA.05 | Trikalsilite | K2NaAl3(SiO4)3 |
| 9.FA.05 | Yoshiokaite | (Ca,Na)[Al(Al,Si)O4] |
| 9.FA.05 | Carnegieite | NaAlSiO4 |
| 9.FA.05 va | Germanate-nepheline | (Na,K)AlGeO4 |
| 9.FA.05 | Megakalsilite | KAlSiO4 |
| 9.FA.05 | Trinepheline | NaAlSiO4 |
| 9.FA.05 | Davidsmithite | (Ca,◻)2Na6Al8Si8O32 |
| 9.FA.10 | Malinkoite | NaBSiO4 |
| 9.FA.15 | Virgilite | LiAlSi2O6 |
| 9.FA.25 | Lisitsynite | KBSi2O6 |
| 9.FA.30 | Buddingtonite | (NH4)(AlSi3O8) |
| 9.FA.30 | Celsian | Ba(Al2Si2O8) |
| 9.FA.30 | Microcline | K(AlSi3O8) |
| 9.FA.30 | Orthoclase | K(AlSi3O8) |
| 9.FA.30 | Sanidine | K(AlSi3O8) |
| 9.FA.30 va | Germanate-celsian | BaAl2Ge2O8 |
| 9.FA.30 | Monalbite | NaAlSi3O8 |
| 9.FA.30 | Ferrisanidine | K[Fe3+Si3O8] |
| 9.FA.35 | Albite | Na(AlSi3O8) |
| 9.FA.35 | Anorthite | Ca(Al2Si2O8) |
| 9.FA.35 | Reedmergnerite | NaBSi3O8 |
| 9.FA.40 | Paracelsian | Ba(Al2Si2O8) |
| 9.FA.45 | Svyatoslavite | Ca(Al2Si2O8) |
| 9.FA.45 | Kumdykolite | Na(AlSi3O8) |
| 9.FA.50 | Slawsonite | Sr(Al2Si2O8) |
| 9.FA.55 | Lisetite | CaNa2Al4Si4O16 |
| 9.FA.60 | Banalsite | Na2BaAl4Si4O16 |
| 9.FA.60 | Stronalsite | Na2SrAl4Si4O16 |
| 9.FA.65 | Danburite | CaB2Si2O8 |
| 9.FA.65 | Maleevite | BaB2Si2O8 |
| 9.FA.65 | Pekovite | SrB2Si2O8 |
| 9.FA.70 | Stöfflerite | CaAl2Si2O8 |
| 9.FA.70 | Lingunite | (Na,Ca)AlSi3O8 |
| 9.FA.70 | Liebermannite | KAlSi3O8 |
| 9.FA.75 | Kokchetavite | K(AlSi3O8) |
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 Rubicline
mindat.org URL:
https://www.mindat.org/min-7276.html
Please feel free to link to this page.
Please feel free to link to this page.
Search Engines:
External Links:
Mineral Dealers:
References for Rubicline
Reference List:
Localities for Rubicline
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.
Australia | |
| Aylmore et al. (2018) |
Canada | |
| Teertstra +1 other reference |
| Cerny et al. 2012 +1 other reference |
| Teertstra +1 other reference |
Finland | |
| Teertstra +2 other references |
Italy (TL) | |
| D.K.Teertstra et al. (1998) |
Mozambique | |
| Teertstra et al. (1999) |
Russia | |
| Tony Nikischer (Excalibur Mineral Co.) +2 other references |
Sweden | |
| Giorgio Bortolozzi specimen |
Quick NavTopAbout RubiclineUnique IdentifiersIMA Classification Classification Mineral SymbolsPhysical Properties Optical Data Chemistry Crystallography Crystal StructureGeological EnvironmentType Occurrence SynonymsOther LanguagesRelationshipsCommon AssociatesStrunz-MindatOther InformationInternet Links References Localities Locality List
Vasin-Myl'k Mt, Voron'i Tundry, Murmansk Oblast, Russia