Olshanskyite (original) (raw)

A valid IMA mineral species

About OlshanskyiteHide

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Formula:

Ca2[B3O3(OH)6](OH) · 3H2O

Specific Gravity:

2.19 - 2.23

Name:

Name for Yakov Iosifovich Ol'shanskii (Яков Иосифович Ольшанский) (1912-1958), specialist in physical geochemistry at the Institute of Geology of Ore Deposits, Petrology, Mineralogy, and Geochemistry (IGEM), Moscow, Russia.

This page provides mineralogical data about Olshanskyite.

Unique IdentifiersHide

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Long-form identifier:

mindat:1:1:2988:5

6750cad9-9879-4403-b86d-20ce116a9ff9

IMA Classification of OlshanskyiteHide

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IMA Formula:

Ca2[B3O3(OH)6]OH · 3H2O

Type description reference:

Classification of OlshanskyiteHide

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6.CA.55

6 : BORATES
C : Triborates
A : Neso-triborates

25.1.6.1

25 : ANHYDROUS BORATES CONTAINING HYDROXYL OR HALOGEN
1 : Monoborates

9.3.6

9 : Borates
3 : Borates of Ca and Sr

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 OlshanskyiteHide

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Density:

2.19 - 2.23 g/cm3 (Measured) 2.31 g/cm3 (Calculated)

Optical Data of OlshanskyiteHide

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RI values:

_n_α = 1.557 _n_β = 1.568 _n_γ = 1.570

2V:

Measured: 54° , Calculated: 44°

δ = 0.013

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

Chemistry of OlshanskyiteHide

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Mindat Formula:

Ca2[B3O3(OH)6](OH) · 3H2O

Crystallography of OlshanskyiteHide

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Cell Parameters:

a = 9.991(5) Å, b = 14.740(11) Å, c = 7.975(3) Å
α = 94.53(4)°, β = 69.08(3)°, γ = 112.44(5)°

Ratio:

a:b:c = 0.678 : 1 : 0.541

Unit Cell V:

1,011.73 ų (Calculated from Unit Cell)

Twinning:

Polysynthetically twinned

Comment:

Space Group: P-1 or P1

Crystal StructureHide

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ID	Species	Reference	Link	Year	Locality	Pressure (GPa)	Temp (K)
0005707	Olshanskyite	Callegari A, Mazzi F, Tadini C (2001) The crystal structure of olshanskyite The Canadian Mineralogist 39 137-144		2001	Fuka mine, Okayama Prefecture, Japan	0	293

CIF Raw Data - click here to close

X-Ray Powder DiffractionHide

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Powder Diffraction Data:

Comments:

Fuka, Japan. Data from Kusachi and Henmi (1994).

Geological EnvironmentHide

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Type Occurrence of OlshanskyiteHide

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General Appearance of Type Material:

Transverse-fibrous aggregates of polysynthetically twinned crystals, 0.02-0.03 mm in size.

Place of Conservation of Type Material:

Mining Institute, St. Petersburg, Russia, 1493/1.
A.E. Fersman Mineralogical Museum, Academy of Sciences, Moscow, Russia, 71541–71544.

Geological Setting of Type Material:

Associated Minerals at Type Locality:

Reference:

Bogomolov, M.A., I.B. Nikitina, and N.N. Pertsev (1969) Olshanskyite, a new calcium borate. Doklady Akademii Nauk SSSR: 184: 1398–1401.

Synonyms of OlshanskyiteHide

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Other Language Names for OlshanskyiteHide

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Common AssociatesHide

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Associated Minerals Based on Photo Data:

Related Minerals - Strunz-mindat GroupingHide

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Other InformationHide

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Notes:

Readily soluble in HCl.

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 OlshanskyiteHide

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References for OlshanskyiteHide

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Localities for OlshanskyiteHide

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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.

China
Inner Mongolia Chifeng City (Ulanhad League; Chifeng Prefecture) Hexigten Banner (Keshiketeng Co.) ⓘ Shijiangshan mine (Dashishan mine)	Ottens et al. (2014)
Japan
Okayama Prefecture Takahashi City Bitchū Fuka ⓘ Fuka mine	Kusachi et al. (1994) +3 other references
Russia (TL)
Sakha Polar Yakutia Dogdo River Basin Tas-Khayakhtakh Range ⓘ Titovskoe B deposit (TL)	Bogomolov et al. (1969) +1 other reference