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Admontite

Pictures (2 Images total)

Admontit
Views (File:
1638995433
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Admontit
pulvriger, weißer Admontit in Glasküvette, Schildmauer, Admont, Liezen, Steiermark, Österreich; BB unbekannt
Copyright: MinTreasure.com (Carsten Slotta); Contribution: openpit
Location: Österreich/Steiermark/Liezen, Bezirk/Admont/Schildmauer
Mineral: Admontite
Image: 1638995433
License: Usage for Mineralienatlas project only
Admontit

pulvriger, weißer Admontit in Glasküvette, Schildmauer, Admont, Liezen, Steiermark, Österreich; BB unbekannt

Copyright: MinTreasure.com (Carsten Slotta)
Contribution: openpit 2021-12-08
Locality: Schildmauer / Admont / Liezen, Bezirk / Steiermark / Österreich
Admontit
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Admontit
Weißer Admontit (ohne Maßstab) von der TL Admont (Bez. Liezen, Stmk, AT).
Copyright: Wikipedia-user: David Hospital; Contribution: oliverOliver
Location: Österreich/Steiermark/Liezen, Bezirk/Admont
Mineral: Admontite
Image: 1702751997
License: Creative Commons - Attribution-ShareAlike 4.0 International  (CC BY-SA) V.4.0
Admontit

Weißer Admontit (ohne Maßstab) von der TL Admont (Bez. Liezen, Stmk, AT).

Copyright: Wikipedia-user: David Hospital
Contribution: oliverOliver 2023-12-16
Locality: Admont / Liezen, Bezirk / Steiermark / Österreich

Collectors Summary

Color farblos
Streak color weiß
Hardness (Mohs) 2.5
Fracture muschelig
Solubility +++ Säuren, + H2O
Crystal System monoklin, P21/c

Chemism

Chemical formula

MgB6O10·7H2O

Chemical composition

Magnesium, Bor, Sauerstoff, Wasserstoff

Unit weight: 375.276828 u; Number of atoms in the formula: 38

Info

Empirical formula:

MgB6O10·7H2O

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Hydrogen

H

3.76

14

36.84

1.0079470

14.1112580

Boron

B

17.29

6

15.79

10.8117000

64.8702000

Oxygen

O

72.48

17

44.74

15.9994300

271.9903100

Magnesium

Mg

6.48

1

2.63

24.3050600

24.3050600

Strunz 9th edition incl. updates

6.FA.15

6: Borate
F: Hexaborate
A: Insel(Neso)-Hexaborate
15:Admontit-Gruppe

Lapis Classification

V/H.17-010

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

Classification by Hölzel

6.FA.130

6: Borates
F: Hexaborates
A: Nesohexaborates
1: Aksaite-Group - 6(3P+3T)

Dana 8th edition

26.06.03.01

26: Hydrated Borates Containing Hydroxyl or Halogen
06: Hydrated Borates Containing Hydroxyl or Halogen

IMA status

Anerkannt von der CNMNC

Mineral status

anerkanntes Mineral

Optical Properties

Color

farblos

Streak color

weiß

Diaphaneity (Transparency)

transparent

max. Birefringence

0.062

Birefringence chart\! Admontite title=Birefringence chart Admontite

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

1.442

RI value β

1.500

RI value γ / ε

1.504

Ri mean

1.482

2V angle

Biaxial (-) 30°

Optical Data Luminescence

Luminescence

keine Fluoreszenz bekannt

Crystallography

Crystal System

monoklin

Class (H-M)

2/m

Space Group number

14

Space Group

P21/c

Cell parameters a (Å)

12.664

Cell parameters b (Å)

10.091

Cell parameters c (Å)

11.322

Cell parameters a/b or c/a

1.255

Cell parameters c/b

1.122

Cell parameters α

90°

Cell parameters β

109.6°

Cell parameters γ

90°

Z

4

Volume (ų)

1363.031

X-Ray Powder Diffraction

12.08(90),
7.60(100),
5.72(40),
5.29(70),
4.92(20),
3.93(80),
3.09(60),
2.68(90)

XRD chart Admontite

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)

2.5

VHN (Hardness Vickers)

53 (ungefähre Angabe abgeleitet aus der Mohshärte)

Density (g/cm³)

1.82 - 1.87 / Durchschnittlich = 1.84

1.829 ( ρ calc. Mineralienatlas )

Fracture

muschelig

Instability

+++ Säuren, + H2O

Preface

Associations

Anhydrit, Gips, Hexahydrit, Löweit u.a.

Name from

der Typlokalität

Author (Name, Year)

Walenta, 1979

References

Tschermaks Mineralogische und Petrographische Mitteilungen 26 (1979), 69

Crystal Structure Communications 5 (1976), 433

Other languages

Dutch

Admontiet

German

Admontit

Spanish

Admontita

English

Admontite

French

Admontite

Latvian

Admontīts

Russian

Адмонтит

CNMNC (IMA)-Number

IMA 1978-012

CNMNC symbol

Symbol

Amt

IDs

GUSID (Global unique identifier short form) nS4i6kTG60eIBpokCePdEg
GUID (Global unique identifier) EA222E9D-C644-47EB-8806-9A2409E3DD12
Database ID 13