Bussyite-(Y)
A valid IMA mineral species
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About Bussyite-(Y)
Antoine Alexandre Brutus Bussy
Formula:
(Y,REE,Ca)3(Na,Ca)6MnSi9Be5(O,OH,F)34
Colour:
Dark brown
Lustre:
Vitreous
Hardness:
4
Specific Gravity:
3.11 (Calculated)
Crystal System:
Monoclinic
Name:
Named via the "Levinson rule" as the yttrium (Y) analogue of bussyite-(Ce). The root name is for French chemist Antoine Alexandre Brutus Bussy (1794–1882) who prepared magnesium and isolated the element beryllium.
Unique Identifiers
Mindat ID:
46442
Long-form identifier:
mindat:1:1:46442:6
Similar Names
| Bassoite | A valid IMA mineral species | SrV3O7 · 4H2O |
| Bosoite | A valid IMA mineral species | SiO2 · nCxH2x+2 |
| Bussyite-(Ce) | A valid IMA mineral species | (Ce,REE)3(Na,H2O)6MnSi9Be5(O,OH)30F4 |
IMA Classification of Bussyite-(Y)
Approved
IMA Formula:
(Y,REE,Ca)3(Na,Ca)6Mn2+Si9Be5(O,F,OH)34
Approval year:
2014
First published:
2015
Classification of Bussyite-(Y)
9.EA.
9 : SILICATES (Germanates)
E : Phyllosilicates
A : Single nets of tetrahedra with 4-, 5-, (6-), and 8-membered rings
9 : SILICATES (Germanates)
E : Phyllosilicates
A : Single nets of tetrahedra with 4-, 5-, (6-), and 8-membered rings
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 |
|---|---|---|
| Bsy-Y | 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 Bussyite-(Y)
Vitreous
Transparency:
Transparent, Translucent
Colour:
Dark brown
Streak:
White
Hardness:
4 on Mohs scale
Tenacity:
Brittle
Cleavage:
Perfect
{101}
{101}
Fracture:
Splintery
Density:
3.11 g/cm3 (Calculated)
Optical Data of Bussyite-(Y)
Type:
Biaxial (-)
RI values:
nα = 1.581 - 1.585 nβ = 1.591 - 1.595 nγ = 1.558 - 1.602
2V:
Measured: 68° (2), Calculated: 79°
Surface Relief:
Moderate
Dispersion:
Could not be observed
Optical Extinction:
Z ∧ c = 33° (β obtuse); Y = b; X = [101].
Pleochroism:
Non-pleochroic
Chemistry of Bussyite-(Y)
Mindat Formula:
(Y,REE,Ca)3(Na,Ca)6MnSi9Be5(O,OH,F)34
Element Weights:
Crystallography of Bussyite-(Y)
Crystal System:
Monoclinic
Class (H-M):
2 - Sphenoidal
Space Group:
B2
Setting:
C2
Cell Parameters:
a = 11.545(2) Å, b = 13.840(2) Å, c = 16.504(4) Å
β = 95.87(2)°
β = 95.87(2)°
Ratio:
a:b:c = 0.834 : 1 : 1.192
Unit Cell V:
2623.1 ų
Z:
4
Morphology:
Blocky, prismatic to bladed crystals, sometimes radiating, up to 3 mm in size.
Twinning:
Lamellar twinning ∥ elongation in some crystals
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 8.049 Å | (100) |
| 3.529 Å | (38) |
| 3.155 Å | (23) |
| 2.940 Å | (35) |
| 2.840 Å | (50) |
| 2.736 Å | (30) |
| 2.651 Å | (38) |
| 2.629 Å | (30) |
Reference:
Comments:
From Type Description.
Geological Environment
Paragenetic Mode(s):
| Paragenetic Mode | Earliest Age (Ga) |
|---|---|
| Near-surface Processes | |
| 23 : Subaerial aqueous alteration by non-redox-sensitive fluids (see also #47) | |
| Stage 4b: Highly evolved igneous rocks | >3.0 |
| 35 : Ultra-alkali and agpaitic igneous rocks |
Type Occurrence of Bussyite-(Y)
General Appearance of Type Material:
Blocky to prismatic crystals up to 3 mm.
Place of Conservation of Type Material:
Type material is deposited in the collections of the Canadian Museum of Nature, Ottawa, Ontario, Canada, catalogue number CMNMC 86870.
Geological Setting of Type Material:
Alkaline pegmatite.
Associated Minerals at Type Locality:
Synonyms of Bussyite-(Y)
Other Language Names for Bussyite-(Y)
Dutch:Bussyiet-(Y)
German:Bussyit-(Y)
Common Associates
Related Minerals - Strunz-mindat Grouping
| 9.EA. | Hydroxymcglassonite-(K) | KSr4Si8O20(OH) · 8H2O |
| 9.EA. | Miyawakiite-(Y) | ◻Y4Fe2(Si8O20)(CO3)4(H2O)3 |
| 9.EA. | Fluorapophyllite-(NH4) | NH4Ca4(Si8O20)F · 8H2O |
| 9.EA.05 | Gillespite | BaFe2+Si4O10 |
| 9.EA.05 | Cuprorivaite | CaCuSi4O10 |
| 9.EA.05 | Wesselsite | SrCuSi4O10 |
| 9.EA.05 | Effenbergerite | BaCuSi4O10 |
| 9.EA.07 | Fluorapophyllite-(Cs) | CsCa4(Si8O20)F · 8H2O |
| 9.EA.10 | Ekanite | Ca2ThSi8O20 |
| 9.EA.15 | Fluorapophyllite-(Na) | NaCa4(Si8O20)F · 8H2O |
| 9.EA.15 | Fluorapophyllite-(K) | KCa4(Si8O20)(F,OH) · 8H2O |
| 9.EA.15 | Hydroxyapophyllite-(K) | KCa4(Si8O20)(OH,F) · 8H2O |
| 9.EA.20 | Magadiite | Na2Si14O29 · 11H2O |
| 9.EA.25 | Dalyite | K2ZrSi6O15 |
| 9.EA.25 | Davanite | K2TiSi6O15 |
| 9.EA.30 | Sazhinite-(La) | Na3La[Si6O15] · 2H2O |
| 9.EA.30 | Sazhinite-(Ce) | Na3CeSi6O15 · 2H2O |
| 9.EA.35 | Armstrongite | CaZr[Si6O15] · 3H2O |
| 9.EA.40 | Okenite | Ca10Si18O46 · 18H2O |
| 9.EA.45 | Perettiite-(Y) | Y2Mn4FeSi2B8O24 |
| 9.EA.45 | Nekoite | Ca3Si6O15 · 7H2O |
| 9.EA.45 | Badakhshanite-(Y) | Y2Mn4Al(Si2B7BeO24) |
| 9.EA.47 | Shlykovite | KCa[Si4O9(OH)] · 3H2O |
| 9.EA.50 | Diegogattaite | Na2CaCu2Si8O20 · H2O |
| 9.EA.50 | Cavansite | Ca(VO)Si4O10 · 4H2O |
| 9.EA.52 | Yangite | PbMnSi3O8 · H2O |
| 9.EA.55 | Pentagonite | Ca(VO)Si4O10 · 4H2O |
| 9.EA.60 | Penkvilksite | Na4Ti2Si8O22 · 4H2O |
| 9.EA.60 | Tumchaite | Na2Zr(Si4O11) · 2H2O |
| 9.EA.65 | Nabesite | Na2BeSi4O10 · 4H2O |
| 9.EA.70 | Ajoite | (K,Na)Cu7AlSi9O24(OH)6 · 3H2O |
| 9.EA.75 | Zeravshanite | Na2Cs4Zr3[Si18O45]*2H2O |
| 9.EA.80 | Bussyite-(Ce) | (Ce,REE)3(Na,H2O)6MnSi9Be5(O,OH)30F4 |
| 9.EA.85 | Plumbophyllite | Pb2Si4O10 · H2O |
Fluorescence of Bussyite-(Y)
No fluorescence in either short-wave or long-wave ultraviolet light.
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 Bussyite-(Y)
mindat.org URL:
https://www.mindat.org/min-46442.html
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References for Bussyite-(Y)
Reference List:
Williams, P. A., Hatert, F., Pasero, M., Mills, S. J. (2014) IMA Commission on New Minerals, Nomenclature and Classification (CNMNC), CNMNC Newsletter No. 22. Mineralogical Magazine, 78 (5) 1241-1248 doi:10.1180/minmag.2014.078.5.10
Localities for Bussyite-(Y)
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.
Canada (TL) | |
| Williams et al. (2014) +1 other reference |
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Poudrette quarry, Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada