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Preobrazhenskite

A valid IMA mineral species - grandfathered

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Preobrazhenskite

Inder B deposit and salt dome, Inder, Atyrau Region, Kazakhstan

Preobrazhenskite

Inder B deposit and salt dome, Inder, Atyrau Region, Kazakhstan

Preobrazhenskite

Inder B deposit and salt dome, Inder, Atyrau Region, Kazakhstan

Preobrazhenskite

Inder B deposit and salt dome, Inder, Atyrau Region, Kazakhstan

Preobrazhenskite

Inder B deposit and salt dome, Inder, Atyrau Region, Kazakhstan

Preobrazhenskite

Inder B deposit and salt dome, Inder, Atyrau Region, Kazakhstan

Preobrazhenskite

Inder B deposit and salt dome, Inder, Atyrau Region, Kazakhstan

Preobrazhenskite

Inder B deposit and salt dome, Inder, Atyrau Region, Kazakhstan

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About PreobrazhenskiteHide

Pavel I. Preobrazhenskii

Formula:

Mg₃B₁₁O₁₅(OH)₉

Colour:

Colourless, lemon-yellow, dark gray

Lustre:

Vitreous

Hardness:

4½ - 5

Specific Gravity:

2.45 (Calculated)

Crystal System:

Orthorhombic

Name:

Named in honor of Pavel Ivanovich Preobrazhenskii (Павел Иванович Преображенский) (13 January 1874, Demyansk, Novgorod Province, Russian Empire - 10 September 1944, Moscow, USSR), geologist with the Institute of Halurgy, St. Petersburg, and the Institute of Mining and Chemical Stock, Moscow, Russia and professor in the Department of Geology and Mineralogy, Perm University. He was an expert in Russian salt deposits and was a discoverer of the Inder deposit, Kazakhstan.

Type Locality:

ⓘ Inder B deposit and salt dome, Inder, Atyrau Region, Kazakhstan

This page provides mineralogical data about Preobrazhenskite.

Unique IdentifiersHide

Mindat ID:

3280

Long-form identifier:

mindat:1:1:3280:9

GUID
(UUID V4):

7fd707c8-2150-473c-a219-b68a5387d12a

Classification of PreobrazhenskiteHide

IMA status:

Approved, 'Grandfathered' (first described prior to 1959)

First published:

1956

Type description reference:

Yarzhemskii, Ya. Ya. (1956) Preobrazhenskite, a new borate of the saliferous strata of the Inder uplift. Doklady Akademii Nauk SSSR: 111: 1087-1090.

Strunz-mindat (2023):

6.GB.15

6 : BORATES
G : Heptaborates and other megaborates
B : Phyllo-nonborates, etc.

Dana 8th ed.:

25.7.1.1

25 : ANHYDROUS BORATES CONTAINING HYDROXYL OR HALOGEN
7 : Nonaborates

Hey's CIM Ref.:

9.2.5

9 : Borates
2 : Borates of Be and Mg

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
Pbz	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 PreobrazhenskiteHide

Lustre:

Vitreous

Transparency:

Translucent

Colour:

Colourless, lemon-yellow, dark gray

Streak:

White

Hardness:

4½ - 5 on Mohs scale

Density:

2.45 g/cm³ (Calculated)

Optical Data of PreobrazhenskiteHide

Type:

Biaxial (+)

RI values:

n_α = 1.573 - 1.576 n_β = 1.573 - 1.576 n_γ = 1.594 - 1.596

Max Birefringence:

δ = 0.021

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

Surface Relief:

Low

Dispersion:

relatively strong

Chemical Properties of PreobrazhenskiteHide

Formula:

Mg₃B₁₁O₁₅(OH)₉

Elements listed:

B, H, Mg, O - search for minerals with similar chemistry

Crystallography of PreobrazhenskiteHide

Crystal System:

Orthorhombic

Class (H-M):

mmm (2/m 2/m 2/m) - Dipyramidal

Space Group:

Pbcm

Setting:

Pbcm

Cell Parameters:

a = 16.291(4) Å, b = 9.181(2) Å, c = 10.571(2) Å

Ratio:

a:b:c = 1.774 : 1 : 1.151

Unit Cell V:

1,581.08 Å³ (Calculated from Unit Cell)

Morphology:

crystals to 4 cm, in nodules and granular massive.

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)
0005367	Preobrazhenskite	Burns P C, Hawthorne F C (1994) Structure and hydrogen bonding in preobrazhenskite, a complex heteropolyhedral borate The Canadian Mineralogist 32 387-396		1994		0	293

CIF Raw Data - click here to close

data_global
_chemical_name_mineral 'Preobrazhenskite'
loop_
_publ_author_name
'Burns P C'
'Hawthorne F C'
_journal_name_full 'The Canadian Mineralogist'
_journal_volume 32 
_journal_year 1994
_journal_page_first 387
_journal_page_last 396
_publ_section_title
;
 Structure and hydrogen bonding in preobrazhenskite, a complex heteropolyhedral
 borate
;
_database_code_amcsd 0005367
_chemical_formula_sum 'Mg3 B11 H9 O24'
_cell_length_a 16.291
_cell_length_b 9.181
_cell_length_c 10.571
_cell_angle_alpha 90
_cell_angle_beta 90
_cell_angle_gamma 90
_cell_volume 1581.080
_exptl_crystal_density_diffrn      2.457
_symmetry_space_group_name_H-M 'P b c n'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  'x,-y,1/2+z'
  '-x,y,1/2-z'
  '1/2-x,1/2+y,z'
  '1/2+x,1/2-y,-z'
  '1/2+x,1/2+y,1/2-z'
  '1/2-x,1/2-y,1/2+z'
  '-x,-y,-z'
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_U_iso_or_equiv
Mg1   0.00000   0.42830   0.25000 ?
Mg2   0.16602   0.06238   0.41426 ?
B1   0.00000   0.13880   0.25000 ?
B2   0.08880   0.18520   0.06960 ?
B3   0.10380   0.95910   0.19760 ?
B4   0.10120   0.70220   0.12000 ?
B5   0.21220   0.77850   0.26140 ?
B6   0.17210   0.35570   0.40960 ?
H3   0.12600   0.35100  -0.02700   0.01500
H6   0.00000   0.82500   0.25000   0.01500
H7   0.00900   0.60900   0.06500   0.01500
H11   0.23000   0.43400   0.54500   0.01500
H12   0.13600   0.48800   0.29900   0.01500
O1   0.06782   0.04930   0.29430 ?
O2   0.03051   0.23890   0.14970 ?
O-h3   0.12360   0.26780  -0.02310 ?
O4   0.11387   0.04200   0.07580 ?
O5   0.18564   0.92020   0.24930 ?
O-h6   0.05602   0.82690   0.17290 ?
O-h7   0.04590   0.57440   0.11710 ?
O8   0.13128   0.74320  -0.00410 ?
O9   0.17179   0.66600   0.20320 ?
O10   0.28184   0.74890   0.32810 ?
O-h11   0.27252   0.96090   0.47450 ?
O-h12   0.38678   0.93960   0.33450 ?
loop_
_atom_site_aniso_label
_atom_site_aniso_U_11
_atom_site_aniso_U_22
_atom_site_aniso_U_33
_atom_site_aniso_U_12
_atom_site_aniso_U_13
_atom_site_aniso_U_23
Mg1 0.00560 0.00550 0.00780 0.00000 0.00030 0.00000
Mg2 0.00600 0.00550 0.00620 0.00040 0.00000 -0.00010
B1 0.00730 0.00630 0.00640 0.00000 0.00110 0.00000
B2 0.00920 0.00720 0.00860 -0.00090 0.00080 0.00070
B3 0.00600 0.00760 0.00650 0.00010 -0.00070 0.00020
B4 0.00740 0.00420 0.00580 -0.00020 0.00000 -0.00050
B5 0.00830 0.00710 0.00550 0.00000 0.00070 0.00010
B6 0.00790 0.00650 0.00730 -0.00070 0.00210 -0.00020
O1 0.00670 0.00740 0.00610 0.00110 -0.00040 -0.00070
O2 0.00910 0.00610 0.00960 0.00000 0.00210 0.00170
O-h3 0.03070 0.01050 0.02230 0.00240 0.01600 0.00570
O4 0.01000 0.00740 0.00740 0.00170 0.00280 0.00110
O5 0.00710 0.00670 0.01180 0.00070 -0.00220 -0.00150
O-h6 0.00650 0.00580 0.00860 -0.00050 0.00190 -0.00100
O-h7 0.01080 0.00890 0.00960 -0.00350 -0.00320 0.00190
O8 0.00790 0.00650 0.00620 0.00070 0.00210 0.00050
O9 0.00790 0.00660 0.00860 0.00090 -0.00260 0.00110
O10 0.00850 0.00760 0.01100 0.00060 -0.00320 -0.00170
O-h11 0.01050 0.01020 0.00790 0.00410 0.00150 0.00150
O-h12 0.00870 0.00950 0.01220 0.00140 0.00120 0.00530

X-Ray Powder DiffractionHide

Powder Diffraction Data:

d-spacing	Intensity
5.28 Å	(100)
3.79 Å	(100)
3.230 Å	(90)
3.187 Å	(90)
2.821 Å	(90)
2.769 Å	(90)
2.641 Å	(90)

Geological EnvironmentHide

Paragenetic Mode(s):

Paragenetic Mode	Earliest Age (Ga)
Near-surface Processes
25 : Evaporites (prebiotic)

Type Occurrence of PreobrazhenskiteHide

Type Locality:

ⓘ Inder B deposit and salt dome, Inder, Atyrau Region, Kazakhstan

General Appearance of Type Material:

Nodules in fine-grained halite-polyhalite rock and encloses kaliborite and boracite. In places it has been partially replaced by inyoite.

Place of Conservation of Type Material:

1) Mining Institute, St. Petersburg, Russia, 1497/1–2,5.
2) A.E. Fersman Mineralogical Museum, Academy of Sciences, Moscow, Russia, 57015.

Associated Minerals at Type Locality:

Reference:

Yarzhemskii, Ya. Ya. (1956) Preobrazhenskite, a new borate of the saliferous strata of the Inder uplift. Doklady Akademii Nauk SSSR: 111: 1087-1090.

Download:

https://rruff.info/rruff_1.0/uploads/DANS111_1087.pdf

Other Language Names for PreobrazhenskiteHide

German:Preobrazhenskit

Russian:Преображенскит

Spanish:Preobrazhenskita

Related Minerals - Strunz-mindat Grouping Hide

6.GB.05	Studenitsite	NaCa₂[B₉O₁₄(OH)₄] · 2H₂O	Mon. 2/m : P2₁/b
6.GB.10	Penobsquisite	Ca₂Fe²⁺[B₉O₁₃(OH)₆]Cl · 4H₂O	Mon. 2 : P2₁
6.GB.20	Walkerite	Ca₁₆(Mg,Li,◻)₂[B₁₃O₁₇(OH)₁₂]₄Cl₆ · 28H₂O	Orth. mm2 : Pba2

Other InformationHide

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 PreobrazhenskiteHide

mindat.org URL:

https://www.mindat.org/min-3280.html
Please feel free to link to this page.

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External Links:

Look for Preobrazhenskite on Webmineral

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Look for Preobrazhenskite 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 PreobrazhenskiteHide

Reference List:

Yarzhemskii, Ya. Ya. (1956) Preobrazhenskite, a new borate of the saliferous strata of the Inder uplift. Doklady Akademii Nauk SSSR: 111: 1087-1090.

Fleischer, M. (1957) New mineral names. American Mineralogist: 42: 704.

Ostrovskaya, I.V., Nikitna, I.B. (1969) The formula of preobrazhenskite. Tr. Mineral. Muz. Akad. Nauk SSSR: 19: 206-209.

Fleischer, M. (1970) New mineral names. American Mineralogist: 55: 1067-1073.

Burns, P.C., Hawthorne, F.C. (1994) Structure and hydrogen bonding in preobrazenskite, a complex heteropolyhedral borate. Canadian Mineralogist: 32: 387-396.

Grew, E.S., Anovitz, L.M. (1996) BORON: Mineralogy, Petrology and Geochemistry, second edition, as revised (2002).

Strunz, H. (1997) Classification of borate minerals. European Journal of Mineralogy: 9: 231-235.

Localities for PreobrazhenskiteHide

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.


Kazakhstan
Aktobe Region Shalkar Aksai Valley ⓘ Chelkar salt dome	Handbook of Mineralogy Vol V p 6
Atyrau Region Inder ⓘ Inder B deposit and salt dome (TL)	Yarzhemskii, Ya. Ya. (1956) Preobrazhenskite, a new borate of the saliferous strata of the Inder uplift. Doklady Akademii Nauk SSSR: 111: 1087-1090. Pekov, I. V. & Abramov, D. V. (1993): Boron deposit of the Inder and its minerals. World of Stones, 1, 23-30. Evseev, A. A. (1995) Kazaknstan and Middle Asia. A brief Mineralogical Guide. World of Stone 8:24-30. *Pekov, Igor V. (1998) Minerals first discovered on the territory of the former Soviet Union. Ocean Pictures, Moscow. 369pp.*

Preobrazhenskite

About PreobrazhenskiteHide

Unique IdentifiersHide

Classification of PreobrazhenskiteHide

Mineral SymbolsHide

Physical Properties of PreobrazhenskiteHide

Optical Data of PreobrazhenskiteHide

Chemical Properties of PreobrazhenskiteHide

Crystallography of PreobrazhenskiteHide

Crystal StructureHide

X-Ray Powder DiffractionHide

Geological EnvironmentHide

Type Occurrence of PreobrazhenskiteHide

Other Language Names for PreobrazhenskiteHide

Related Minerals - Strunz-mindat GroupingHide

Other InformationHide

Internet Links for PreobrazhenskiteHide

References for PreobrazhenskiteHide

Localities for PreobrazhenskiteHide

Locality ListHide

Related Minerals - Strunz-mindat Grouping Hide