Ivanyukite-K (original) (raw)

A valid IMA mineral species

About Ivanyukite-KHide

This section is currently hidden. Click the show button to view.

Formula:

K2Ti4(SiO4)3(OH)2O2 · 9H2O

Name:

Named in honor of Gregory Yur’evich Ivanyuk, Russian mineralogist and petrologist, head of the Laboratory of Self-Organized Mineral Systems in the Geological Institute of the Kola Science Centre of the Russian Academy of Sciences.

Compare other members of the group: ivanyukite-Na and ivanyukite-Cu. Ivanyukite-K is not analogous to these members (amount of water, oxide and hydroxide anions vary).

The structure of all ivanyukites is described as a 3D framework of the pharmacosiderite type; it is based on of four edge-sharing TiO6 octahedra connected by the silicate tetrahedra. It contains 8-membered rings defininng channels with an effective width of 3.5 Å. K, Na and water reside within the channels.

Unique IdentifiersHide

This section is currently hidden. Click the show button to view.

Long-form identifier:

mindat:1:1:32619:9

9b969d7e-1e37-4be3-89e9-0940378946ce

IMA Classification of Ivanyukite-KHide

This section is currently hidden. Click the show button to view.

IMA Formula:

K2[Ti4O2(OH)2(SiO4)3] · 9H2O

Type description reference:

Yakovenchuk, V. N., Nikolaev, A. P., Selivanova, E. A., Pakhomovsky, Y. A., Korchak, J. A., Spiridonova, D. V., Zalkind, O. A., Krivovichev, S. V. (2009) Ivanyukite-Na-T, ivanyukite-Na-C, ivanyukite-K, and ivanyukite-Cu: New microporous titanosilicates from the Khibiny massif (Kola Peninsula, Russia) and crystal structure of ivanyukite-Na-T. American Mineralogist, 94 (10) 1450-1458 doi:10.2138/am.2009.3065

Classification of Ivanyukite-KHide

This section is currently hidden. Click the show button to view.

9.AG.50

9 : SILICATES (Germanates)
A : Nesosilicates
G : Nesosilicates with additional anions; cations in > [6] +- [6] coordination

Mineral SymbolsHide

This section is currently hidden. Click the show button to view.

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

Physical Properties of Ivanyukite-KHide

This section is currently hidden. Click the show button to view.

Density:

2.70 g/cm3 (Measured) 2.69 g/cm3 (Calculated)

Optical Data of Ivanyukite-KHide

This section is currently hidden. Click the show button to view.

Birefringence:

Isotropic minerals have no birefringence

Chemistry of Ivanyukite-KHide

This section is currently hidden. Click the show button to view.

Mindat Formula:

K2Ti4(SiO4)3(OH)2O2 · 9H2O

Common Impurities:

Cu,Ca,Nb

Crystallography of Ivanyukite-KHide

This section is currently hidden. Click the show button to view.

Class (H-M):

43_m_ - Hextetrahedral

Cell Parameters:

a = 7.808(2) Å

Unit Cell V:

476.01 ų (Calculated from Unit Cell)

X-Ray Powder DiffractionHide

This section is currently hidden. Click the show button to view.

Powder Diffraction Data:

Geological EnvironmentHide

This section is currently hidden. Click the show button to view.

Type Occurrence of Ivanyukite-KHide

This section is currently hidden. Click the show button to view.

General Appearance of Type Material:

Cubic crystals, up to 1.5 mm in diameter.

Place of Conservation of Type Material:

Geological and Mineralogical Museum of the Geological Institute of the Kola Science Centre of the Russian Academy of Sciences, Apatity, Russia, 6354.

Geological Setting of Type Material:

Natrolitized microcline-aegirine-sodalite lens within orthoclase-bearing urtite; formed from ivanyukite-Na-T by its partial hydration and cation exchange.

Associated Minerals at Type Locality:

Reference:

Yakovenchuk, V.N., Nikolaev, A.P., Selivanova, E.A., Pakhomovsky, Y.A., Korchak, J.A., Spiridonova, D.V., Zalkind, O.A., Krivovichev, S.V. (2009) Ivanyukite-Na-T, ivanyukite-Na-C, ivanyukite-K, and ivanyukite-Cu: New microporous titanosilicates from the Khibiny massif (Kola Peninsula, Russia) and crystal structure of ivanyukite-Na-T. American Mineralogist: 94: 1450–1458.

Synonyms of Ivanyukite-KHide

This section is currently hidden. Click the show button to view.

Relationship of Ivanyukite-K to other SpeciesHide

This section is currently hidden. Click the show button to view.

Other Members of this group:

Common AssociatesHide

This section is currently hidden. Click the show button to view.

Associated Minerals Based on Photo Data:

Related Minerals - Strunz-mindat GroupingHide

This section is currently hidden. Click the show button to view.

Other InformationHide

This section is currently hidden. Click the show button to view.

IR Spectrum:

14 absorption bands from Si-O, Ti-O, molecular water and OH groups vibrations

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 Ivanyukite-KHide

This section is currently hidden. Click the show button to view.

References for Ivanyukite-KHide

This section is currently hidden. Click the show button to view.

Reference List:

Yakovenchuk, V. N., Nikolaev, A. P., Selivanova, E. A., Pakhomovsky, Y. A., Korchak, J. A., Spiridonova, D. V., Zalkind, O. A., Krivovichev, S. V. (2009) Ivanyukite-Na-T, ivanyukite-Na-C, ivanyukite-K, and ivanyukite-Cu: New microporous titanosilicates from the Khibiny massif (Kola Peninsula, Russia) and crystal structure of ivanyukite-Na-T. American Mineralogist, 94 (10) 1450-1458 doi:10.2138/am.2009.3065

Localities for Ivanyukite-KHide

This section is currently hidden. Click the show button to view.

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 section is currently hidden. Click the show button to view.

- 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.