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Bavsiite

A valid IMA mineral species

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Photos of Bavsiite (5)

Bavsiite Gallery Search Photos of Bavsiite

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Bavsiite

Gun claim, Wilson Lake, Itsi Mountain, Watson Lake mining district, Yukon, Canada

Bavsiite, etc.

Gun claim, Wilson Lake, Itsi Mountain, Watson Lake mining district, Yukon, Canada

Bavsiite, etc.

Gun claim, Wilson Lake, Itsi Mountain, Watson Lake mining district, Yukon, Canada

Bavsiite

Gun claim, Wilson Lake, Itsi Mountain, Watson Lake mining district, Yukon, Canada

Bavsiite, etc.

Gun claim, Wilson Lake, Itsi Mountain, Watson Lake mining district, Yukon, Canada

Bavsiite, etc.

Gun claim, Wilson Lake, Itsi Mountain, Watson Lake mining district, Yukon, Canada

Bavsiite

Gun claim, Wilson Lake, Itsi Mountain, Watson Lake mining district, Yukon, Canada

Bavsiite, etc.

Gun claim, Wilson Lake, Itsi Mountain, Watson Lake mining district, Yukon, Canada

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About BavsiiteHide

Formula:

Ba₂V₂O₂[Si₄O₁₂]

Colour:

Sky-blue

Lustre:

Vitreous

Hardness:

Specific Gravity:

4.171 (Calculated)

Crystal System:

Tetragonal

Name:

Named for the composition, that includes BArium, Vanadium and SIlicon.

Type Locality:

ⓘ Gun claim, Wilson Lake, Itsi Mountain, Watson Lake mining district, Yukon, Canada

Dimorph of:

Suzukiite

This page provides mineralogical data about Bavsiite.

Unique IdentifiersHide

Mindat ID:

46155

Long-form identifier:

mindat:1:1:46155:3

GUID
(UUID V4):

92ccd13b-fa66-432e-91bf-af2324a6bab6

IMA Classification of BavsiiteHide

IMA status:

Approved

Approval year:

2014

First published:

2019

Type description reference:

Bojar, Hans-Peter, Walter, Franz, Baumgartner, Judith (2019) Bavsiite, Ba₂V₂O₂[Si₄O₁₂], mineral data and crystal structure. Mineralogical Magazine, 83 (6) 821-827 doi:10.1180/mgm.2019.59

Classification of BavsiiteHide

Strunz-mindat (2024):

9.DH.

9 : SILICATES (Germanates)
D : Inosilicates
H : Inosilicates with 4-periodic single chains, Si₄O₁₂

Mineral SymbolsHide

As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.

Symbol	Source	Reference
Bav	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 BavsiiteHide

Lustre:

Vitreous

Transparency:

Transparent

Colour:

Sky-blue

Streak:

White

Hardness:

4 on Mohs scale

Cleavage:

Distinct/Good
Good parallel to (001).

Density:

4.171 g/cm³ (Calculated)

Comment:

Density was not measured due to inclusions.

Optical Data of BavsiiteHide

Type:

Uniaxial (+)

RI values:

n_ω = 1.725(3) n_ε = 1.750(3)

Max Birefringence:

δ = 0.025

Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.

Surface Relief:

High

Dispersion:

Weak, r > v.

Pleochroism:

Visible

Comments:

ω = medium blue; ε = pale yellow.

Chemistry of BavsiiteHide

Mindat Formula:

Ba₂V₂O₂[Si₄O₁₂]

Elements listed:

Ba, O, Si, V - search for minerals with similar chemistry

Crystallography of BavsiiteHide

Crystal System:

Tetragonal

Class (H-M):

4/m - Dipyramidal

Space Group:

I4/m

Setting:

I4/m

Cell Parameters:

a = 7.051(1) Å, c = 11.470(1) Å

Ratio:

a:c = 1 : 1.627

Unit Cell V:

570.25 Å³ (Calculated from Unit Cell)

Morphology:

Platy crystals flattened on {001}.

Twinning:

Merohedral twinning.

X-Ray Powder DiffractionHide

Powder Diffraction Data:

d-spacing	Intensity
3.763 Å	(30)
3.361 Å	(44)
3.004 Å	(100)
2.493 Å	(43)
2.486 Å	(67)
2.286 Å	(24)
1.785 Å	(39)
1.763 Å	(25)

Comments:

Gun claim, Yukon, Canada. Data from the type description.

Geological EnvironmentHide

Paragenetic Mode(s):

Paragenetic Mode	Earliest Age (Ga)
High-𝑇 alteration and/or metamorphism
32 : Ba/Mn/Pb/Zn deposits, including metamorphic deposits

Type Occurrence of BavsiiteHide

Type Locality:

ⓘ Gun claim, Wilson Lake, Itsi Mountain, Watson Lake mining district, Yukon, Canada

General Appearance of Type Material:

Millimetre-sized sky-blue platy crystals.

Place of Conservation of Type Material:

Type material is deposited in the mineralogical collection of the Universalmuseum Joanneum, Weinzöttlstrabe 16, A-8045 Graz, Austria, catalogue number 85.282.

Geological Setting of Type Material:

Barium-rich low-temperature skarn related to a porphyritic quartz monzonite stock.

Associated Minerals at Type Locality:

Witherite	Walstromite	Suzukiite	Mica Group	Fresnoite
Diopside	Cerchiaraite Group	Celsian	Baryte	Alstonite

Reference:

Bojar, H.-P., Walter, F., Baumgartner, J. (2019) Bavsiite, Ba2V2O2[Si4O12], mineral data and crystal structure. Mineralogical Magazine: 83(6): 821-827

Synonyms of BavsiiteHide

IMA2014-019

Common AssociatesHide

Associated Minerals Based on Photo Data:

2 photos of Bavsiite associated with Suzukiite

BaVSi₂O₇

Related Minerals - Strunz-mindat Grouping Hide

9.DH.	Gageite-2M	(Mn,Mg,Zn)₄₂Si₁₆O₅₄(OH)₄₀	Mon. 2/m
9.DH.	Devilliersite	Ca₄Ca₂Fe³⁺₁₀O₄[(Fe³⁺₁₀Si₂)O₃₆]	Tric. 1 : P1
9.DH.	Yuzuxiangite	Sr₃Fe³⁺(Si₂O₆)₂(OH) · 3H₂O	Mon. 2/m : P2₁/m
9.DH.	Louisfuchsite	Ca₂(Mg₄Ti₂)(Al₄Si₂)O₂₀	Tric. 1 : P1
9.DH.05	Leucophanite	NaCaBeSi₂O₆F	Orth. 2 2 2 : P2₁ 2₁ 2₁
9.DH.10	Ohmilite	Sr₃(Ti,Fe³⁺)(Si₄O₁₂)(O,OH) · 2-3H₂O	Mon. 2/m : P2₁/m
9.DH.15	Haradaite	SrVSi₂O₇	Orth. mmm (2/m 2/m 2/m)
9.DH.15	Suzukiite	BaVSi₂O₇	Orth.
9.DH.20	Batisite	BaNaNaTi₂(Si₄O₁₂)O₂	Orth. mmm (2/m 2/m 2/m) : Imma
9.DH.20	Shcherbakovite	(K,Ba)KNa(Ti,Nb)₂(Si₄O₁₂)O₂	Orth. mmm (2/m 2/m 2/m) : Imma
9.DH.20	Noonkanbahite	BaKNaTi₂(Si₄O₁₂)O₂	Orth. mmm (2/m 2/m 2/m) : Imma
9.DH.25	Taikanite	Sr₃BaMn²⁺₂(Si₄O₁₂)O₂	Mon. 2 : B2
9.DH.30	Krauskopfite	BaSi₂O₅ · 3H₂O	Mon. 2/m : P2₁/b
9.DH.35	Balangeroite	(Mg,Fe²⁺,Fe³⁺,Mn²⁺)₄₂Si₁₆O₅₄(OH)₄₀	Mon. 2/m
9.DH.35	Gageite	Mn₂₁(Si₄O₁₂)₂O₃(OH)₂₀	Mon. 2/m
9.DH.40	Aenigmatite	Na₄[Fe²⁺₁₀Ti₂]O₄[Si₁₂O₃₆]	Tric. 1 : P1
9.DH.40	Dorrite	Ca₄(Mg₃Fe³⁺₉)O₄(Si₃Al₈Fe³⁺O₃₆)	Tric.
9.DH.40	Høgtuvaite	Ca₄[Fe²⁺₆Fe³⁺₆]O₄[Si₈Be₂Al₂O₃₆]	Tric. 1 : P1
9.DH.40	Krinovite	Na₂Mg₄Cr³⁺₂(Si₆O₁₈)O₂	Tric. 1 : P1
9.DH.40	Makarochkinite	(Ca,Na)₄[Fe²⁺₈Fe³⁺₂Ti₂]O₄[Si₈Be₂Al₂O₃₆]	Tric. 1 : P1
9.DH.40	Rhönite	Ca₄[Mg₈Fe³⁺₂Ti₂]O₄[Si₆Al₆O₃₆]	Tric. 1 : P1
9.DH.40	Serendibite	Ca₄[Mg₆Al₆]O₄[Si₆B₃Al₃O₃₆]	Tric. 1 : P1
9.DH.40	Welshite	Ca₄Mg₉Sb₃O₄[Si₆Be₃AlFe₂O₃₆]	Tric. 1 : P1
9.DH.40	Wilkinsonite	Na₂Fe²⁺₄Fe³⁺₂(Si₆O₁₈)O₂	Tric. 1 : P1
9.DH.40	Leucorhönite	Ca₂(Mg,Fe³⁺,Al)₆(Si,Al)₆O₂₀	Tric.
9.DH.40	Kuratite	Ca₂(Fe²⁺₅Ti)O₂[Si₄Al₂O₁₈]	Tric. 1 : P1
9.DH.40	Khesinite	Ca₄(Mg₃Fe³⁺₉)O₄(Fe³⁺₉Si₃)O₃₆	Tric. 1 : P1
9.DH.40	UM1991-29-SiO:FeMgNa	Na₄(Mg₅Fe³⁺₇)O₄[Si₉Fe³⁺₃O₃₆]
9.DH.45	Sapphirine	Mg₄(Mg₃Al₉)O₄[Si₃Al₉O₃₆]	Mon. 2/m : P2₁/b
9.DH.50	Khmaralite	(Mg,Al,Fe)₁₆[(Al,Si,Be)₁₂O₃₆]O₄	Mon. 2/m : P2₁/b
9.DH.55	Surinamite	(Mg,Fe)₃Al₄BeSi₃O₁₆	Mon. 2/m
9.DH.55	UM1988-26-SiO:AlMg	Mg₄Al₂O[Si₃Al₂O₁₅]
9.DH.60	Deerite	(Fe,Mn)₆(Fe,Al)₃[Si₆O₁₇]O₃(OH)₅	Mon. 2/m : P2₁/b
9.DH.65	Howieite	Na(Fe,Mn)₁₀(Fe,Al)₂Si₁₂O₃₁(OH)₁₃	Tric.
9.DH.65	Taneyamalite	(Na,Ca)(Mn,Mg,Fe)₁₂Si₁₂(O,OH)₄₄	Tric.
9.DH.70	Johninnesite	Na₂Mn²⁺₉Mg₇(OH)₈[AsO₄]₂[Si₆O₁₇]₂	Tric.
9.DH.75	Agrellite	NaCa₂Si₄O₁₀F	Tric. 1 : P1

Fluorescence of BavsiiteHide

In UV light:

Not fluorescent.

Other InformationHide

IR Spectrum:

Bands at 1223w, 1068s, 993sh, 916s, 743w, 659s, 584m, 537w, 478s and 427m in cm-1 where s=strong, m=medium, w=weak, sh=shoulder.

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 BavsiiteHide

mindat.org URL:

https://www.mindat.org/min-46155.html
Please feel free to link to this page.

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External Links:

Look for Bavsiite on Webmineral

Look for Bavsiite on Wikipedia

Look for Bavsiite on Mineralien Atlas

Raman and XRD data at RRUFF project

References and PDF downloads at RRUFF project

American Mineralogist Crystal Structure Database

Handbook of Mineralogy page PDF

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References for BavsiiteHide

Reference List:

Williams, P. A., Hatert, F., Pasero, M., Mills, S. J. (2014) New minerals and nomenclature modifications approved in 2014, CNMNC Newsletter No 21. Mineralogical Magazine, 78 (4) 797-804 doi:10.1180/minmag.2014.078.4.03

Walter, F. and Bojar, H.-P. (2019) Bavsiite, Ba2V2O2[Si4O12], a new silicate mineral with single 4-rings. Mitteilungen der Österreichischen Mineralogischen Gesellschaft: 165: 94 (abs.).

(2023) Bavsiite. Handbook of Mineralogy. Mineralogical Society of America

Localities for BavsiiteHide

This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the

symbol to view information about a locality. The

symbol next to localities in the list can be used to jump to that position on the map.

Locality ListHide

- 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.


Austria
Salzburg Tamsweg District Tweng ⓘ Fuchs Alp - Fuchs lake area ?	Kolitsch et al. (2021)

Canada (TL)
Yukon Watson Lake mining district Itsi Mountain Wilson Lake ⓘ Gun claim (TL)	Dunning et al. (2018) +1 other reference

Bavsiite

About BavsiiteHide

Unique IdentifiersHide

IMA Classification of BavsiiteHide

Classification of BavsiiteHide

Mineral SymbolsHide

Physical Properties of BavsiiteHide

Optical Data of BavsiiteHide

Chemistry of BavsiiteHide

Crystallography of BavsiiteHide

X-Ray Powder DiffractionHide

Geological EnvironmentHide

Type Occurrence of BavsiiteHide

Synonyms of BavsiiteHide

Common AssociatesHide

Related Minerals - Strunz-mindat GroupingHide

Fluorescence of BavsiiteHide

Other InformationHide

Internet Links for BavsiiteHide

References for BavsiiteHide

Localities for BavsiiteHide

Locality ListHide

Related Minerals - Strunz-mindat Grouping Hide