Verbierite
A valid IMA mineral species - pending publication
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Formula:
BeCr3+2TiO6
Ideal formula (by analogy to byrudite): Cr23+Ti(BeO4)O2.
Crystal System:
Orthorhombic
Name:
Named for the community of Verbier, Switzerland, near the type locality.
Isostructural with:
The Cr analogue of byrudite. Unique combination of elements. Second Be-Cr mineral after mariinskite.
Unique Identifiers
Mindat ID:
47591
Long-form identifier:
mindat:1:1:47591:8
Similar Names
| Ferberite | A valid IMA mineral species - grandfathered | FeWO4 |
IMA Classification of Verbierite
Classification of Verbierite
4.CA.05
4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
C : Metal: Oxygen = 2: 3,3: 5, and similar
A : With small cations
4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
C : Metal: Oxygen = 2: 3,3: 5, and similar
A : With small cations
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 |
|---|---|---|
| Vbr | IMA–CNMNC | Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
Chemistry of Verbierite
Mindat Formula:
BeCr3+2TiO6
Ideal formula (by analogy to byrudite): Cr23+Ti(BeO4)O2.
Ideal formula (by analogy to byrudite): Cr23+Ti(BeO4)O2.
Element Weights:
Elements listed:
Crystallography of Verbierite
Crystal System:
Orthorhombic
Class (H-M):
mmm(2/m2/m2/m) - Dipyramidal
Space Group:
Pnma
Cell Parameters:
a = 9.933(2) Å, b = 8.458(2) Å, c = 4.511(1) Å
Ratio:
a:b:c = 1.174 : 1 : 0.533
Unit Cell V:
378.98 ų (Calculated from Unit Cell)
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 4.10 Å | (20) |
| 3.70 Å | (60) |
| 2.54 Å | (60) |
| 2.25 Å | (30) |
| 1.670 Å | (100) |
| 1.661 Å | (60) |
| 1.428 Å | (30) |
| 1.351 Å | (30) |
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 Verbierite
Place of Conservation of Type Material:
Collections of the Musée Cantonal de Géologie, Lausanne, Switzerland (registration nos. MGL 93100 and MGL 93101)
Synonyms of Verbierite
Other Language Names for Verbierite
Dutch:Verbieriet
German:Verbierit
Related Minerals - Strunz-mindat Grouping
| 4.CA. | Byrudite | (Be,◻)(V3+,Ti,Cr)3O6 |
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 Verbierite
mindat.org URL:
https://www.mindat.org/min-47591.html
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References for Verbierite
Reference List:
Localities for Verbierite
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.
Switzerland (TL) | |
| Hålenius et al. (2016) +1 other reference |
