https://www.edelsteine-neuburg.de
https://www.mineraliengrosshandel.com
https://www.mineralbox.biz
https://www.mineral-bosse.de
'._('einklappen').'
 

Ammonioborite

Pictures (1 Images total)

Ammonioborit
Views (File:
1442068524
): 1012
Ammonioborit
derbe, weiße Masse von der Typlokalität; BB = 6,0 mm
Copyright: Hannes Osterhammer; Contribution: Münchener Micromounter
Collection: Lithothek der Münchener Micromounter, Collection number: A022927, Donator: Steffen Möckel
Location: Italien/Toskana (Toscana)/Pisa, Provinz/Pomarance/Larderello
Mineral: Ammonioborite
Image: 1442068524
License: Usage for Mineralienatlas project only
Ammonioborit (SNr: A022927)

derbe, weiße Masse von der Typlokalität; BB = 6,0 mm

Collection: Lithothek der Münchener Micromounter
Copyright: Hannes Osterhammer
Contribution: Münchener Micromounter 2015-09-12
Locality: Larderello / Pomarance / Pisa, Provinz / Toskana (Toscana) / Italien

You find additional specimen at the Geolitho Museum

Collectors Summary

Color weiß
Streak color weiß
Solubility +++ verdünnte Säuren, + H2O
Crystal System monoklin, C2/c

Chemism

Chemical formula

(NH4)3B15O20(OH)8·4H2O

Chemical composition

Bor, Sauerstoff, Stickstoff, Wasserstoff

Unit weight: 744.399936 u; Number of atoms in the formula: 78

Info

Empirical formula:

(NH4)3B15O20(OH)8·4H2O

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Hydrogen

H

3.79

28

35.90

1.0079470

28.2225160

Boron

B

21.79

15

19.23

10.8117000

162.1755000

Nitrogen

N

5.64

3

3.85

14.0067200

42.0201600

Oxygen

O

68.78

32

41.03

15.9994300

511.9817600

Strunz 9th edition incl. updates

6.EA.15

6: Borate
E: Pentaborate
A: Insel(Neso)-Pentaborate
15:Ammonioborit-Gruppe

Lapis Classification

V/H.15-010

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

Classification by Hölzel

6.EA.170

6: Borates
E: Pentaborates
A: Nesopentaborates
1: Sborgite-Group - 5(4P+T)

Dana 8th edition

26.05.03.01

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

IMA status

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

Mineral status

anerkanntes Mineral

Optical Properties

Color

weiß

Streak color

weiß

max. Birefringence

0.070

Birefringence chart\! Ammonioborite title=Birefringence chart Ammonioborite

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

1.470

RI value β

1.487

RI value γ / ε

1.540

Ri mean

1.499

2V angle

Biaxial (+) 60°

Crystallography

Crystal System

monoklin

Class (H-M)

2/m

Space Group number

15

Space Group

C2/c

Cell parameters a (Å)

25.27

Cell parameters b (Å)

9.65

Cell parameters c (Å)

11.56

Cell parameters a/b or c/a

2.619

Cell parameters c/b

1.198

Cell parameters α

90°

Cell parameters β

94.28

Cell parameters γ

90°

Z

4

Volume (ų)

2811.108

X-Ray Powder Diffraction

8.98(40),
5.70(60),
5.44(30),
4.82(20),
3.16(100),
3.09(100),
3.01(50),
2.876(60)

XRD chart Ammonioborite

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

Crystal Structure 3D

Open larger view

Physical Properties

Density (g/cm³)

1.765 (gemessen)

1.759 ( ρ calc. Mineralienatlas )

Instability

+++ verdünnte Säuren, + H2O

Preface

Author (Name, Year)

Schaller, 1931

References

Handbook of Mineralogy (Anthony et al.), 5 (2003), 19

Other languages

German

Ammonioborit

French

Ammonioborite

English

Ammonioborite

Spanish

Amonioborita

Russian

Аммониоборит

Alternative Name

Spanish

Ammonioborita

CNMNC symbol

Symbol

Abo

IDs

GUSID (Global unique identifier short form) OZIgdk_IF0WJSt81hFdScA
GUID (Global unique identifier) 76209239-C84F-4517-894A-DF3584575270
Database ID 110