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Preobrazhenskite

Pictures (2 Images total)

Preobrazhenskit x
Views (File:
1366985776
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Preobrazhenskit x
Inder Bor-Lagerstätte,Kasachstan; Kristallgröße 1 cm
Copyright: Haubi; Contribution: Haubi
Collection: Haubi
Location: Kasachstan/Atyrau oblysy/Atyrau (Gur'yev)/Inder B-Lagerstätte und Salzdom
Mineral: Preobrazhenskite
Image: 1366985776
Rating: 8 (votes: 1)
License: Usage for Mineralienatlas project only
Preobrazhenskit x

Inder Bor-Lagerstätte,Kasachstan; Kristallgröße 1 cm

Collection: Haubi
Copyright: Haubi
Contribution: Haubi 2013-04-26
Locality: Inder B-Lagerstätte und Salzdom / Atyrau (Gur'yev) / Atyrau oblysy / Kasachstan
Preobrazhenskit
Views (File:
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Preobrazhenskit
Bildbreite: 2 mm, Fundort: Inder See, Atyrau, Oblast Atyrau, Kasachstan.
Copyright: Luigi Chiappino; Contribution: thdun5
Location: Kasachstan/Atyrau oblysy/Atyrau (Gur'yev)/Inder B-Lagerstätte und Salzdom
Mineral: Preobrazhenskite
Image: 1271613754
Rating: 2.5 (votes: 2)
License: Usage for Mineralienatlas project only
Preobrazhenskit

Bildbreite: 2 mm, Fundort: Inder See, Atyrau, Oblast Atyrau, Kasachstan.

Copyright: Luigi Chiappino
Contribution: thdun5 2010-04-18
Locality: Inder B-Lagerstätte und Salzdom / Atyrau (Gur'yev) / Atyrau oblysy / Kasachstan

Collectors Summary

Color farblos
Streak color weiß
Hardness (Mohs) 4.50 - 5.00
Solubility +++ Säuren, - H2O
Crystal System orthorhombisch, Pbcn

Chemism

Chemical formula

Mg3B11O15(OH)9

Chemical composition

Magnesium, Bor, Sauerstoff, Wasserstoff

Unit weight: 584.901723 u; Number of atoms in the formula: 47

Info

Empirical formula:

Mg3B11O15(OH)9

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Hydrogen

H

1.55

9

19.15

1.0079470

9.0715230

Boron

B

20.33

11

23.40

10.8117000

118.9287000

Oxygen

O

65.65

24

51.06

15.9994300

383.9863200

Magnesium

Mg

12.47

3

6.38

24.3050600

72.9151800

Strunz 9th edition incl. updates

6.GB.15

6: Borate
G: Heptaborate und andere Megaborate
B:
15:Preobrazhenskit-Gruppe

Lapis Classification

V/K.08-010

V: NITRATE, CARBONATE UND BORATE
K: Schichtborate mit komplexen Baugruppen [Bx(O,OH)y]

Classification by Hölzel

6.GA.300

6: Borates
G: Heptaborates and further megaborates
A:
3: Phyllo-nonaborates - 9(4P+5T)+2T (branched units)

Dana 8th edition

25.07.01.01

25: Anhydrous Borates Containing Hydroxyl or Halogen
07: Anhydrous Borates Containing Hydroxyl or Halogen

IMA status

Erstbeschreibung vor CNMNC-Gründung (1959), als Mineral meist anerkannt

Mineral status

anerkanntes Mineral

Optical Properties

Color

farblos

Streak color

weiß

max. Birefringence

0.020

Birefringence chart\! Preobrazhenskite title=Birefringence chart Preobrazhenskite

Michel-Levy Color Chart viewed according to the maximum birefringence (at 30μm). Mineral color is not taken into account. Click on the image to enlarge or change thickness.

RI value α / ω / n

1.575

RI value β

1.575

RI value γ / ε

1.595

Ri mean

1.582

2V angle

Biaxial (+) sm

Optical Data Luminescence

Color LW-UV (365nm)

 

weiß

Color SW-UV (254nm)

 

weiß

Afterglow (Persistant Luminescence)

keine Daten

Crystallography

Crystal System

orthorhombisch

Class (H-M)

mmm

Space Group number

60

Space Group

Pbcn

Cell parameters a (Å)

16.291

Cell parameters b (Å)

9.181

Cell parameters c (Å)

10.571

Cell parameters a/b or c/a

1.774

Cell parameters c/b

1.151

Cell parameters α

90°

Cell parameters β

90°

Cell parameters γ

90°

Z

4

Volume (ų)

1581.08

X-Ray Powder Diffraction

5.28(100),
3.79(100),
3.230(90),
3.187(90),
2.821(90),
2.769(90),
2.641(90),
2.134(100)

XRD chart Preobrazhenskite

Calculated from d-spacing and intensity at 0.1541838 nm (Cu)

Crystals 3D

Open larger view

Crystal Structure 3D

Open larger view

Physical Properties

Hardness (Mohs)

4.50 - 5.00

VHN (Hardness Vickers)

340 (ungefähre Angabe abgeleitet aus der Mohshärte)

Density (g/cm³)

2.45 (berechnet)

2.457 ( ρ calc. Mineralienatlas )

Instability

+++ Säuren, - H2O

Preface

Author (Name, Year)

Yarzhemskiy, 1956

References

Doklady Akademiia Nauk, SSSR (USSR) (in Russian) 111 (1956), 1087

Other languages

German

Preobrazhenskit

Spanish

Preobrazhenskita

English

Preobrazhenskite

French

Preobrazhenskite

Russian

Преображенскит

CNMNC symbol

Symbol

Pbz

IDs

GUSID (Global unique identifier short form) lcrAxj34BEm2UABm2cjejw
GUID (Global unique identifier) C6C0CA95-F83D-4904-B650-0066D9C8DE8F
Database ID 3125