Verbierite
A valid IMA mineral species
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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
GUID
(UUID V4):
(UUID V4):
71a75f96-5b39-4aff-85ba-86c2efeb4eb7
IMA Classification of Verbierite
Approved, Pending publication
Approval year:
2016
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 |
---|---|---|
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.
Elements listed:
Crystallography of Verbierite
Crystal System:
Orthorhombic
Class (H-M):
mmm (2/m 2/m 2/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
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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Please feel free to link to this page.
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External Links:
Mineral Dealers:
References for Verbierite
Reference List:
Localities for Verbierite
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).
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.
All localities listed without proper references should be considered as questionable.
Switzerland (TL) | |
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