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Inderborite

Pictures (4 Images total)

Inderborit
Views (File:
1261324803
): 1270
Inderborit
Größe: 45x18x15 mm; Fundort: Inder See, Atyrau, Atyrau oblysy, Kasachstan
Copyright: Pavel M. Kartashov; Contribution: Philip Blümner
Location: Kasachstan/Atyrau oblysy/Atyrau (Gur'yev)/Inder B-Lagerstätte und Salzdom
Mineral: Inderborite
Image: 1261324803
Rating: 8 (votes: 1)
License: Usage for Mineralienatlas project only
Inderborit

Größe: 45x18x15 mm; Fundort: Inder See, Atyrau, Atyrau oblysy, Kasachstan
Copyright: Pavel M. Kartashov
Contribution: Philip Blümner 2009-12-20
Locality: Inder B-Lagerstätte und Salzdom / Atyrau (Gur'yev) / Atyrau oblysy / Kasachstan
Inderborit x
Views (File:
1102944786
): 1097
Inderborit x
Größe: ca. 1 cm breit; Fundort: Inder See, Atyrau, Atyrau oblysy, Kasachstan
Copyright: berthold; Contribution: Mineralienatlas
Location: Kasachstan/Atyrau oblysy/Atyrau (Gur'yev)/Inder B-Lagerstätte und Salzdom
Mineral: Inderborite
Image: 1102944786
Rating: 6 (votes: 1)
License: Usage for Mineralienatlas project only
Inderborit x

Größe: ca. 1 cm breit; Fundort: Inder See, Atyrau, Atyrau oblysy, Kasachstan
Copyright: berthold
Contribution: Mineralienatlas 2004-12-13
Locality: Inder B-Lagerstätte und Salzdom / Atyrau (Gur'yev) / Atyrau oblysy / Kasachstan
Inderborit mit Realgar
Views (File:
1089057909
): 1030
Inderborit mit Realgar
Fundort: Inder See, Atyrau, Atyrau oblysy, Kasachstan
Copyright: uwe; Contribution: Mineralienatlas
Location: Kasachstan/Atyrau oblysy/Atyrau (Gur'yev)/Inder B-Lagerstätte und Salzdom
Mineral: Inderborite
Image: 1089057909
Rating: 5 (votes: 1)
License: Usage for Mineralienatlas project only
Inderborit mit Realgar

Fundort: Inder See, Atyrau, Atyrau oblysy, Kasachstan
Copyright: uwe
Contribution: Mineralienatlas 2004-07-05
Locality: Inder B-Lagerstätte und Salzdom / Atyrau (Gur'yev) / Atyrau oblysy / Kasachstan
Inderborit
Views (File:
1261164568
): 1030
Inderborit
Größe: 11,4 x 6,6 x 6,6 cm; Fundort: Lagerstätte No. 6, Inder See, Atyrau, Atyrau oblysy, Kasachstan
Copyright: Rob Lavinsky; Contribution: Philip Blümner
Location: Kasachstan/Atyrau oblysy/Atyrau (Gur'yev)/Inder B-Lagerstätte und Salzdom/Lagerstätte No. 6
Mineral: Inderborite
Image: 1261164568
License: Usage for Mineralienatlas project only
Inderborit

Größe: 11,4 x 6,6 x 6,6 cm; Fundort: Lagerstätte No. 6, Inder See, Atyrau, Atyrau oblysy, Kasachstan
Copyright: Rob Lavinsky
Contribution: Philip Blümner 2009-12-18
Locality: Lagerstätte No. 6 / Inder B-Lagerstätte und Salzdom / Atyrau (Gur'yev) / Atyrau oblysy / Kasachstan

Collectors Summary

Color farblos, weiß
Streak color weiß
Lustre Glasglanz
Hardness (Mohs) 3.5
Solubility +++ Säuren, ++ H2O
Crystal System monoklin, C2/c

Chemism

Chemical formula

CaMg[B3O3(OH)5]2·6H2O

Chemical composition

Calcium, Magnesium, Bor, Sauerstoff, Wasserstoff

Unit weight: 503.415954 u; Number of atoms in the formula: 52

Info

Empirical formula:

CaMg[B3O3(OH)5]2·6H2O

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Hydrogen

H

4.40

22

42.31

1.0079470

22.1748340
Boron

B

12.89

6

11.54

10.8117000

64.8702000
Oxygen

O

69.92

22

42.31

15.9994300

351.9874600
Magnesium

Mg

4.83

1

1.92

24.3050600

24.3050600
Calcium

Ca

7.96

1

1.92

40.0784000

40.0784000

Analysis wt%

CaO : 11.16, MgO : 8.01, B2O3 : 40.90, H2O : 39.54 (Ref: Dana, 7th ed. 2)

Strunz 9th edition incl. updates

6.CA.25

6: Borate
C: Triborate
A: Insel (Neso)-Triborate
25:Inderborit-Gruppe

Lapis Classification

V/H.06-030

V: NITRATE, CARBONATE UND BORATE
H: Gruppenborate
6: Planare und tetraedrische Gruppen [B3O5] 1- bis [B6O10] 2-

Classification by Hölzel

6.CA.230

6: Borates
C: Triborates
A: Nesotriborates
2: Inderite-Group - 3(P+2T)

Dana 8th edition

26.03.01.02

26: Hydrated Borates Containing Hydroxyl or Halogen
03: Hydrated Borates Containing Hydroxyl or Halogen
01: Inyoite Group

IMA status

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

Mineral status

anerkanntes Mineral

Optical Properties

Color

farblos, weiß

Streak color

weiß

Diaphaneity (Transparency)

transparent

Lustre

Glasglanz

max. Birefringence

0.048
Birefringence chart\! Inderborite title=Birefringence chart Inderborite

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

1.482

RI value β

1.512

RI value γ / ε

1.530

Ri mean

1.508

2V angle

Biaxial (-) 77°

Optical Data Luminescence

Color LW-UV (365nm)

  

blassgelb

LW-UV Intensity

sehr stark

Color SW-UV (254nm)

  

blassgelb

SW-UV Intensity

sehr stark

LW-UV Other Colors

      

weiß, blau, bläulich

SW-UV Other Colors

      

weiß, blau, bläulich

Color SW-UV Afterglow (254nm)

  

gelblich weiß

SW-UV Afterglow Intensity

sehr schwach

Crystallography

Crystal System

monoklin

Class (H-M)

2/m

Space Group number

15

Space Group

C2/c

Cell parameters a (Å)

12.137

Cell parameters b (Å)

7.433

Cell parameters c (Å)

19.234

Cell parameters a/b or c/a

1.633

Cell parameters c/b

2.588

Cell parameters α

90°

Cell parameters β

90.28

Cell parameters γ

90°

Z

4

Volume (ų)

1735.162

X-Ray Powder Diffraction

9.60(20),
6.35(50),
6.07(100),
4.51(30),
3.287(50),
3.204(50),
3.012(30),
2.428(20)
XRD chart Inderborite

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)

3.5

VHN (Hardness Vickers)

130 (ungefähre Angabe abgeleitet aus der Mohshärte)

Density (g/cm³)

2.004

1.927 ( ρ calc. Mineralienatlas )

Radioactivity

fehlt

Instability

+++ Säuren, ++ H2O

(Co-)Type locality

(Co-)Type locality

Kasachstan/Atyrau oblysy/Atyrau (Gur'yev)/Inder B-Lagerstätte und Salzdom/Lagerstätte No. 6

Preface

Author (Name, Year)

Gorshkov, 1941

References

Handbook of Mineralogy (Anthony et al.), 5 (2003), 322.

G. Diego Gatta; Enrico Cannaò; Davide Comboni; Tommaso Battiston; Oscar Fabelo: A neutron diffraction study of the hydrous borate inderborite, CaMg[B3O3(OH)5]2(H2O)4·2H2O. American Mineralogist Vol.109, Nr. 7 (2024) S. 1258-1265. doi: 10.2138/am-2023-9162

Other languages

German

Inderborit

Spanish

Inderborita

French

Inderborite

English

Inderborite

Russian

Индерборит

Alternative Name

Metahydroboracite

CNMNC symbol

Symbol

Ibo

IDs

GUSID (Global unique identifier short form) GrolkcHSRUqEMKIuZ2RNHQ
GUID (Global unique identifier) 9125BA1A-D2C1-4A45-8430-A22E67644D1D
Database ID 1717