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Umbite

A valid IMA mineral species

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Photos of Umbite (13)

Umbite Gallery Search Photos of Umbite

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Umbite

Koashva Open Pit, Koashva Mt, Khibiny Massif, Murmansk Oblast, Russia

Umbite

Yukspor Mt, Khibiny Massif, Murmansk Oblast, Russia

Umbite

Koashva Open Pit, Koashva Mt, Khibiny Massif, Murmansk Oblast, Russia

Umbite

Koashva Open Pit, Koashva Mt, Khibiny Massif, Murmansk Oblast, Russia

Umbite

Yukspor Mt, Khibiny Massif, Murmansk Oblast, Russia

Umbite

Koashva Open Pit, Koashva Mt, Khibiny Massif, Murmansk Oblast, Russia

Umbite

Koashva Open Pit, Koashva Mt, Khibiny Massif, Murmansk Oblast, Russia

Umbite

Yukspor Mt, Khibiny Massif, Murmansk Oblast, Russia

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About UmbiteHide

Formula:

K₂(Zr,Ti)Si₃O₉ · H₂O

Colour:

Colourless, light yellow

Lustre:

Vitreous

Hardness:

4½

Specific Gravity:

2.79

Crystal System:

Orthorhombic

Member of:

Umbite Group

Name:

Named after the Lake Umb, 20km east of the occurrence.

Type Locality:

ⓘ Vuonnemiok River Valley, Khibiny Massif, Murmansk Oblast, Russia

Dimorph of:

Kostylevite

The Zr analogue of kamenevite.

Unique IdentifiersHide

Mindat ID:

4091

Long-form identifier:

mindat:1:1:4091:0

GUID
(UUID V4):

3780d23b-d46b-45f7-99ec-86de6c304b51

IMA Classification of UmbiteHide

IMA status:

Approved

IMA Formula:

K₂ZrSi₃O₉ · H₂O

Approval year:

1982

First published:

1983

Type description reference:

Khomyakov A P, Voronkov A A, Kobyashev Y S, Polezhaeva L I (1983) Umbite and paraumbite, new potassium zirconosilicates from the Khibina alkalic massif. Zapiski Vserossiyskogo Mineralogicheskogo Obshchestva 112: 461-469.

Classification of UmbiteHide

Strunz-mindat (2024):

9.DG.25

9 : SILICATES (Germanates)
D : Inosilicates
G : Inosilicates with 3-periodic single and multiple chains

Dana 8th ed.:

59.2.1.1

59 : CYCLOSILICATES Three-Membered Rings
2 : Three-Membered Rings, hydrated

Hey's CIM Ref.:

14.10.16

14 : Silicates not Containing Aluminum
10 : Silicates of Zr or Hf

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
Umb	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 UmbiteHide

Lustre:

Vitreous

Transparency:

Translucent

Colour:

Colourless, light yellow

Hardness:

4½ on Mohs scale

Hardness:

VHN₁₀₀=305 - 401 - Vickers

Cleavage:

Perfect
On {010}, perfect, micaceous; {100}, less perfect

Density:

2.79 g/cm³ (Measured) 2.79 g/cm³ (Calculated)

Optical Data of UmbiteHide

Type:

Biaxial (-)

RI values:

n_α = 1.596(2) n_β = 1.619(2) n_γ = 1.630

2V:

Measured: 80° , Calculated: 68°

Max Birefringence:

δ = 0.034

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

Surface Relief:

Moderate

Dispersion:

r < v weak

Optical Extinction:

X = c; Y = b; Z = a.

Chemistry of UmbiteHide

Mindat Formula:

K₂(Zr,Ti)Si₃O₉ · H₂O

Elements listed:

H, K, O, Si, Ti, Zr - search for minerals with similar chemistry

Common Impurities:

Ti,Hf,Fe,Na,F

Crystallography of UmbiteHide

Crystal System:

Orthorhombic

Class (H-M):

2 2 2 - Disphenoidal

Space Group:

P2₁ 2₁ 2₁

Cell Parameters:

a = 10.208(2) Å, b = 13.241(4) Å, c = 7.174(1) Å

Ratio:

a:b:c = 0.771 : 1 : 0.542

Unit Cell V:

969.67 Å³ (Calculated from Unit Cell)

Morphology:

Platy crystals, flattened on (010} with the forms {010} (dominant) and {101}, {110}, and {001}.

Crystal StructureHide

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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)
0012738	Umbite	Ilyushin G D (1993) New data on the crystal structure of umbite K2ZrSi3O9H2O* Izvestiya Akademii Nauk SSSR Neorganicheskie Materialy 29 971-975		1993		0	293

CIF Raw Data - click here to close

data_global
_chemical_name_mineral 'Umbite'
loop_
_publ_author_name
'Ilyushin G D'
_journal_name_full 'Izvestiya Akademii Nauk SSSR Neorganicheskie Materialy'
_journal_volume 29 
_journal_year 1993
_journal_page_first 971
_journal_page_last 975
_publ_section_title
;
 New data on the crystal structure of umbite K2ZrSi3O9*H2O
;
_database_code_amcsd 0012738
_chemical_formula_sum 'K2 (Zr.86 Ti.14) Si3 O10 H2'
_cell_length_a 10.207
_cell_length_b 13.241
_cell_length_c 7.174
_cell_angle_alpha 90
_cell_angle_beta 90
_cell_angle_gamma 90
_cell_volume 969.572
_exptl_crystal_density_diffrn      2.806
_symmetry_space_group_name_H-M 'P 21 21 21'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  '-x,1/2+y,1/2-z'
  '1/2+x,1/2-y,-z'
  '1/2-x,-y,1/2+z'
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_occupancy
K1   0.07270   0.57800   0.71230   1.00000
K2   0.20930   0.86530   0.64960   1.00000
Zr   0.05000   0.70970   0.26000   0.86000
Ti   0.05000   0.70970   0.26000   0.14000
Si1   0.17600   0.32770   0.50480   1.00000
Si2   0.13760   0.33310   0.91800   1.00000
Si3   0.03280   0.45190   0.23040   1.00000
O1   0.16820   0.68840   0.04170   1.00000
O2   0.98570   0.56380   0.26940   1.00000
O3   0.20860   0.68700   0.43390   1.00000
O4   0.11320   0.23020   0.40860   1.00000
O5   0.05720   0.24100   0.99960   1.00000
O6   0.07920   0.86620   0.24460   1.00000
O7   0.09990   0.35490   0.70010   1.00000
O8   0.15590   0.42650   0.37290   1.00000
O9   0.09490   0.43810   0.01840   1.00000
Wat   0.18140   0.06450   0.62780   1.00000

X-Ray Powder DiffractionHide

Powder Diffraction Data:

d-spacing	Intensity
3.02 Å	(100b)
5.91 Å	(90)
2.87 Å	(80)
1.797 Å	(80b)
3.31 Å	(70)
6.56 Å	(60b)
2.156 Å	(40)

Comments:

Vuonnemiok River Valley, Russia. Data from type description.

Geological EnvironmentHide

Paragenetic Mode(s):

Paragenetic Mode	Earliest Age (Ga)
Stage 4b: Highly evolved igneous rocks	>3.0
35 : Ultra-alkali and agpaitic igneous rocks

Type Occurrence of UmbiteHide

Type Locality:

ⓘ Vuonnemiok River Valley, Khibiny Massif, Murmansk Oblast, Russia

Place of Conservation of Type Material:

Geology Museum, Kola Branch, Academy of Sciences, Apatity, Russia.
Mineralogical Museum, St. Petersburg University, St. Petersburg, Russia, 17072.
Mining Institute, St. Petersburg, Russia, 1631/1.
A.E. Fersman Mineralogical Museum, Academy of Sciences, Moscow, Russia, 82758.
The Natural History Museum, London, England, 1994,35.

Associated Minerals at Type Locality:

Reference:

Synonyms of UmbiteHide

IMA1982-006

Other Language Names for UmbiteHide

German:Umbit

Russian:Умбит

Spanish:Umbita

Relationship of Umbite to other SpeciesHide

Member of:

Umbite Group

Other Members of this group:

Kamenevite

K₂TiSi₃O₉ · H₂O

Orth. 2 2 2 : P2₁ 2₁ 2₁

Structurally related to group(s):

Umbite Group

Common AssociatesHide

Associated Minerals Based on Photo Data:

1 photo of Umbite associated with Villiaumite	NaF
1 photo of Umbite associated with Djerfisherite	K₆(Fe,Cu,Ni)₂₅S₂₆Cl
1 photo of Umbite associated with Ilmenite	Fe²⁺TiO₃
1 photo of Umbite associated with Aegirine	NaFe³⁺Si₂O₆
1 photo of Umbite associated with Microcline	K(AlSi₃O₈)
1 photo of Umbite associated with Nepheline	Na₃K(Al₄Si₄O₁₆)
1 photo of Umbite associated with Eudialyte	Na₁₅Ca₆Fe₃Zr₃Si(Si₂₅O₇₃)(O,OH,H₂O)₃(Cl,OH)₂

Related Minerals - Strunz-mindat Grouping Hide

9.DG.	Calcinaksite	KNaCa(Si₄O₁₀) · H₂O	Tric. 1 : P1
9.DG.	Barrydawsonite-(Y)	Na_1.5Y_0.5CaSi₃O₈(OH)	Mon. 2/m : P2₁/b
9.DG.	Paratobermorite	Ca₄(Al_0.5Si_0.5)₂Si₄O₁₆(OH)(H₂O)₂ · (Ca · 3H₂O)	Mon. 2/m
9.DG.	Alvesite	NaKZrSi₆O₁₅ · 2H₂O	Orth. mmm (2/m 2/m 2/m)
9.DG.02	Steedeite	NaMn₂[Si₃BO₉](OH)₂	Tric. 1 : P1
9.DG.02	Nolzeite	NaMn₂[Si₃BO₉](OH)₂ · 2H₂O	Tric. 1 : P1
9.DG.05	Bustamite	CaMn²⁺(Si₂O₆)	Tric. 1 : P1
9.DG.05	Ferrobustamite	CaFe²⁺(Si₂O₆)	Tric. 1
9.DG.05	Pectolite	NaCa₂Si₃O₈(OH)	Tric. 1 : P1
9.DG.05	Serandite	NaMn²⁺₂Si₃O₈(OH)	Tric. 1 : P1
9.DG.05	Wollastonite	Ca₃(Si₃O₉)	Tric. 1 : P1
9.DG.05	Wollastonite-1A	CaSiO₃	Tric. 1 : P1
9.DG.05	Tanohataite	LiMn₂Si₃O₈(OH)	Tric. 1 : P1
9.DG.05	Schizolite	NaCaMnSi₃O₈(OH)	Tric. 1 : P1
9.DG.05	Murakamiite	LiCa₂Si₃O₈(OH)	Tric. 1 : P1
9.DG.05	Dalnegorskite	Ca₅Mn(Si₃O₉)₂	Tric. 1 : P1
9.DG.07	Cascandite	CaScSi₃O₈(OH)	Tric. 1
9.DG.08	Plombièrite	[Ca₄Si₆O₁₆(OH)₂ · 2H₂O] · (Ca · 5H₂O)	Orth.
9.DG.10	Clinotobermorite	[Ca₄Si₆O₁₇ · 2H₂O] · (Ca · 3H₂O)	Mon.
9.DG.10	Riversideite	Ca₅(HSi₃O₉)₂ · 2H₂O	Orth.
9.DG.10	Tobermorite	Ca₄Si₆O₁₇(H₂O)₂ · (Ca · 3H₂O)	Mon. 2 : P2₁
9.DG.12	Jusite	Na₂Ca₁₅Al₄Si₁₆O₅₄ · 17H₂O
9.DG.12	Kenotobermorite	Ca₄Si₆O₁₅(OH)₂(H₂O)₂ · 3H₂O	Mon.
9.DG.15	Foshagite	Ca₄(Si₃O₉)(OH)₂	Tric. 1 : P1
9.DG.20	Jennite	Ca₉(Si₃O₉)₂(OH)₈ · 8H₂O	Tric. 1 : P1
9.DG.20	Kamenevite	K₂TiSi₃O₉ · H₂O	Orth. 2 2 2 : P2₁ 2₁ 2₁
9.DG.25	Paraumbite	K₃Zr₂H(Si₃O₉)₂ · nH₂O	Orth. mm2
9.DG.30	Sørensenite	Na₄SnBe₂Si₆O₁₆(OH)₄	Mon. 2/m : B2/b
9.DG.32	Escheite	Ca₂NaMnTi₅[Si₁₂O₃₄]O₂(OH)₃ · 12H₂O	Orth. mm2 : Ama2
9.DG.35	Xonotlite	Ca₆(Si₆O₁₇)(OH)₂	Mon. 2/m : B2/m
9.DG.40	Hillebrandite	Ca₂(SiO₃)(OH)₂	Orth. mmm (2/m 2/m 2/m) : Cmcm
9.DG.45	Zorite	Na₈(Ti,Nb)₅(Si₆O₁₇)₂(OH,O)₅ · 14H₂O	Orth.
9.DG.45	Chivruaiite	Ca₄(Ti,Nb)₅(Si₆O₁₇)₂(OH,O)₅ · 13-14H₂O	Orth. mmm (2/m 2/m 2/m) : Cmmm
9.DG.50	Haineaultite	(Na,Ca)₅Ca(Ti,Nb)₅(Si₆O₁₇)₂(OH,F)₈ · 5H₂O	Orth. 2 2 2 : C2 2 2
9.DG.55	Epididymite	Na₂Be₂Si₆O₁₅ · H₂O	Orth. mmm (2/m 2/m 2/m) : Pnma
9.DG.60	Eudidymite	Na₂Be₂Si₆O₁₅ · H₂O	Mon. 2/m : B2/b
9.DG.65	Elpidite	Na₂ZrSi₆O₁₅ · 3H₂O	Orth.
9.DG.65	Patynite	NaKCa₄[Si₉O₂₃]	Tric. 1 : P1
9.DG.67	Whelanite	Cu²⁺₂Ca₆[Si₆O₁₇(OH)](CO₃)(OH)₃ · 2H₂O	Orth. mm2 : Pnn2
9.DG.70	Fenaksite	(K,Na)₄(Fe,Mn)₂(Si₄O₁₀)₂(OH,F)	Tric. 1 : P1
9.DG.70	Litidionite	CuNaKSi₄O₁₀	Tric. 1 : P1
9.DG.70	Manaksite	KNaMnSi₄O₁₀	Tric. 1 : P1
9.DG.70	Yusupovite	Na₂Zr(Si₆O₁₅) · 2.5H₂O	Mon. 2/m : B2/m
9.DG.70	Enricofrancoite	KNaCaSi₄O₁₀	Tric. 1 : P1
9.DG.75	Tinaksite	K₂Na(Ca,Mn²⁺)₂TiO[Si₇O₁₈(OH)]	Tric.
9.DG.75	Tokkoite	K₂Ca₄[Si₇O₁₈(OH)](OH,F)	Tric.
9.DG.75	Senkevichite	CsKNaCa₂TiO[Si₇O₁₈](OH)	Tric. 1 : P1
9.DG.80	Canasite	K₃Na₃Ca₅Si₁₂O₃₀(OH)₄	Mon. m : Bm
9.DG.80	Fluorcanasite	K₃Na₃Ca₅Si₁₂O₃₀F₄ · H₂O	Mon. m : Bm
9.DG.85	Miserite	K_1.5-x(Ca,Y,REE)₅(Si₆O₁₅)(Si₂O₇)(OH,F)₂ · yH₂O	Tric.
9.DG.90	Frankamenite	K₃Na₃Ca₅(Si₁₂O₃₀)(F,OH)₄ · H₂O	Tric. 1 : P1
9.DG.92	Charoite	(K,Sr)_15-16(Ca,Na)₃₂[Si₆O₁₁(O,OH)₆]₂[Si₁₂O₁₈(O,OH)₁₂]₂[Si₁₇O₂₅(O,OH)₁₈]₂(OH,F)₄ · ~3H₂O	Mon. 2/m : P2₁/m
9.DG.95	Yuksporite	K₄(Ca,Na)₁₄(Sr,Ba)₂(◻,Mn,Fe)(Ti,Nb)₄(O,OH)₄(Si₆O₁₇)₂(Si₂O₇)₃(H₂O,OH)₃	Mon. 2/m : P2₁/m
9.DG.97	Eveslogite	(Na,K,Ca,Sr,Ba)₄₈ [(Ti,Nb,Mn,Fe²⁺)₁₂Si₄₈O₁₄₄(OH)₁₂](F,OH,Cl)₁₄	Mon. 2/m : P2/m

Fluorescence of UmbiteHide

In UV light:

Weak yellowish fluorescence under UV. Fluorescence is bright whitish-green at the temperature of liquid nitrogen.

Other InformationHide

IR Spectrum:

IR spectrum shows bands for molecular water.

Thermal Behaviour:

The X-ray pattern of material heated to 500°C is that of wadeite.

Notes:

Readily decomposed by cold 10% HCl, leaving a silica skeleton.

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 UmbiteHide

mindat.org URL:

https://www.mindat.org/min-4091.html
Please feel free to link to this page.

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External Links:

Look for Umbite on Webmineral

Look for Umbite on Wikipedia

Look for Umbite 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 UmbiteHide

Reference List:

European Journal of Solid State Inorganic Chemistry: 34: 381-390.

Khomyakov, A.P., Voronkov, A.A., Kobyashev, Y.S., Polezhaeva, L.I. (1983) Umbite and paraumbite, new potassium zirconosilicates from the Khibina alkalic massif. Zapiski Vserossiyskogo Mineralogicheskogo Obshchestva, 112. 461-469.

Dunn, P.J., Fleischer, M., Francis, C.A., Langley, R.H., Kissin, S.A., Shigley, J.E., Vanko, D.A., Zilczer, J.A. (1984) New mineral names. American Mineralogist: 69: 813-814.

Ilyushin, G.D. (1993) New data on the crystal structure of umbite K2ZrSi3O9·H2O. Neorganicheskie Materialy, 29, 971-975.

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

Localities for UmbiteHide

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.


Russia
Murmansk Oblast Khibiny Massif Eveslogchorr Mt ⓘ Wadeite point	Arzamastsev et al. (2008)
ⓘ Koashva Mt	www.mindat.org (n.d.) +2 other references
ⓘ IGC Stop 2-2	Arzamastsev et al. (2008)
ⓘ Koashva Open Pit	33 IGC excursion No 47 +2 other references
ⓘ Kukisvumchorr Mt	Pekov et al. (2004)
ⓘ Rischorr Mt
ⓘ Vuonnemiok River Valley (TL)	Khomyakov et al. (1983) +2 other references
ⓘ Yukspor Mt	Ferraris et al. (2001) +1 other reference
ⓘ Material'naya Adit	Pavel.M. Kartashov (n.d.)
Lovozersky District ⓘ Alluaiv Mountain	Takai et al. (2011)

Umbite

About UmbiteHide

Unique IdentifiersHide

IMA Classification of UmbiteHide

Classification of UmbiteHide

Mineral SymbolsHide

Physical Properties of UmbiteHide

Optical Data of UmbiteHide

Chemistry of UmbiteHide

Crystallography of UmbiteHide

Crystal StructureHide

X-Ray Powder DiffractionHide

Geological EnvironmentHide

Type Occurrence of UmbiteHide

Synonyms of UmbiteHide

Other Language Names for UmbiteHide

Relationship of Umbite to other SpeciesHide

Common AssociatesHide

Related Minerals - Strunz-mindat GroupingHide

Fluorescence of UmbiteHide

Other InformationHide

Internet Links for UmbiteHide

References for UmbiteHide

Localities for UmbiteHide

Locality ListHide

Related Minerals - Strunz-mindat Grouping Hide