Dritsite (original) (raw)

A valid IMA mineral species

Formula:

Li2Al4(OH)12Cl2 · 3H2O

Specific Gravity:

2.123 (Calculated)

Name:

Named in honour of the Russian crystallographer and mineralogist Victor Anatol`evich Drits (Виктор Анатольевич Дриц) (born 1932) from Geological Institute of the Russian Academy of Sciences, Moscow, Russia.

Unique combination of elements (the first approved natural lithium chloride). One of the most alkaline lithium minerals.
2H polytype
Chemically but not structurally the Cl-analogue of akopovaite (not a true analogy).

Unique IdentifiersHide

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Long-form identifier:

mindat:1:1:53681:1

83c26f99-0241-4cdd-848d-f11187afa744

IMA Classification of DritsiteHide

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Type description reference:

Zhitova, Elena S., Pekov, Igor V., Chaikovskiy, Ilya I., Chirkova, Elena P., Yapaskurt, Vasiliy O., Bychkova, Yana V., Belakovskiy, Dmitry I., Chukanov, Nikita V., Zubkova, Natalia V., Krivovichev, Sergey V., Bocharov, Vladimir N. (2019) Dritsite, Li2Al4(OH)12Cl2·3H2O, a New Gibbsite-Based Hydrotalcite Supergroup Mineral. Minerals, 9 (8) 492 doi:10.3390/min9080492

Classification of DritsiteHide

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4.FL.05

4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
F : Hydroxides (without V or U)
L : Hydroxides with H2O +- (OH); sheets of edge-sharing octahedra

Mineral SymbolsHide

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

Physical Properties of DritsiteHide

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Density:

2.123 g/cm3 (Calculated)

Optical Data of DritsiteHide

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RI values:

_n_ω = 1.546(2) _n_ε = 1.583(2)

δ = 0.037

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

Pleochroism:

Non-pleochroic

Chemistry of DritsiteHide

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Mindat Formula:

Li2Al4(OH)12Cl2 · 3H2O

Crystallography of DritsiteHide

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Class (H-M):

6/m m m _(_6/_m_2/_m_2/m ) - Dihexagonal Dipyramidal

Cell Parameters:

a = 5.0960(3) Å, c = 15.538(1) Å

Unit Cell V:

349.45 ų (Calculated from Unit Cell)

Morphology:

Type material:
Lamellar to tabular hexagonal crystals flattened on {001}. The pinacoid {0001} is the major crystal form. The hexagonal prism {1100} is the most common lateral form. The prism {10-10} is rare and minor. Faces of hexagonal dipyramids {hh(-2h)l}, and occasionally {h0il}, were observed.

X-Ray Powder DiffractionHide

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Powder Diffraction Data:

Geological EnvironmentHide

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Type Occurrence of DritsiteHide

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General Appearance of Type Material:

Single lamellar or tabular hexagonal crystals up to 0.25 mm across.

Place of Conservation of Type Material:

Collections of the Fersman Mineralogical Museum, Russian Academy of Sciences, Leninskiy Prospekt 18-2, Moscow 119071, Russia, registration number 5380/1.

Geological Setting of Type Material:

Diagenetic mineral of evaporite deposit.

Associated Minerals at Type Locality:

Reference:

Zhitova, E.S., Pekov, I.V., Chaikovskiy, I.I., Chirkova, E.P., Yapaskurt, V.O., Bychkova, Y.V., Belakovsky D.I., Chukanov N.V., Zubkova N.V., Krivovichev S.V., Bocharov, V.N. (2019) Dritsite, Li2Al4(OH)12Cl2·3H2O, a New Gibbsite-Based Hydrotalcite Supergroup Mineral. Minerals, 9(8), 492.

Synonyms of DritsiteHide

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Relationship of Dritsite to other SpeciesHide

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Other Members of this group:

Related Minerals - Strunz-mindat GroupingHide

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Fluorescence of DritsiteHide

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Other InformationHide

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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 DritsiteHide

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References for DritsiteHide

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Reference List:

Zhitova, Elena S., Pekov, Igor V., Chaikovskiy, Ilya I., Chirkova, Elena P., Yapaskurt, Vasiliy O., Bychkova, Yana V., Belakovskiy, Dmitry I., Chukanov, Nikita V., Zubkova, Natalia V., Krivovichev, Sergey V., Bocharov, Vladimir N. (2019) Dritsite, Li2Al4(OH)12Cl2·3H2O, a New Gibbsite-Based Hydrotalcite Supergroup Mineral. Minerals, 9 (8) 492 doi:10.3390/min9080492

Localities for DritsiteHide

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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

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- 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.