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Biringuccite (Biringuccit)

Pictures (1 Images total)

Biringuccit mit Nasinit
Views (File:
1587395094
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Biringuccit mit Nasinit
enge Verwachsungen von weißem Biringuccit und Nasinit, Larderello, Pomarance, Pisa, Toskana, Italien; BB ~ 1 cm
Copyright: MinTreasure.com (Carsten Slotta); Contribution: openpit
Location: Italien/Toskana (Toscana)/Pisa, Provinz/Pomarance/Larderello
Mineral: Biringuccite, Nasinite
Image: 1587395094
License: Usage for Mineralienatlas project only
Biringuccit mit Nasinit

enge Verwachsungen von weißem Biringuccit und Nasinit, Larderello, Pomarance, Pisa, Toskana, Italien; BB 1 cm
Copyright: MinTreasure.com (Carsten Slotta)
Contribution: openpit 2020-04-20
Locality: Larderello / Pomarance / Pisa, Provinz / Toskana (Toscana) / Italien

Collectors Summary

Color weiß
Streak color weiß
Solubility +++ H2O
Crystal System monoklin, P21/c

Chemism

Chemical formula

Na2B5O8(OH)·H2O

Chemical composition

Natrium, Bor, Sauerstoff, Wasserstoff

Unit weight: 263.0561814 u; Number of atoms in the formula: 20

Info

Empirical formula:

Na2B5O8(OH)·H2O

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Hydrogen

H

1.15

3

15.00

1.0079470

3.0238410
Boron

B

20.55

5

25.00

10.8117000

54.0585000
Oxygen

O

60.82

10

50.00

15.9994300

159.9943000
Sodium

Na

17.48

2

10.00

22.9897702

45.9795404

Analysis wt%

Na2O : 23.56, B2O3 : 66.17, H2O : 10.27 (Ref: berechnet)

Strunz 9th edition incl. updates

6.EC.05

6: Borate
E: Pentaborate
C: Schicht(Phyllo)-Pentaborate
05:Biringuccit-Gruppe

Lapis Classification

V/K.03-020

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

Classification by Hölzel

6.EC.100

6: Borates
E: Pentaborates
C: Phyllopentaborates
1: Biringuccite-Group - 5(3P+2T)

Dana 8th edition

26.05.07.01

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

IMA status

Anerkannt von der CNMNC

Mineral status

anerkanntes Mineral

Optical Properties

Color

weiß

Streak color

weiß

max. Birefringence

0.061
Birefringence chart\! Biringuccite title=Birefringence chart Biringuccite

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

1.496

RI value β

1.539

RI value γ / ε

1.557

Ri mean

1.531

2V angle

Biaxial (-) 63°

Crystallography

Crystal System

monoklin

Class (H-M)

2/m

Space Group number

14

Space Group

P21/c

Cell parameters a (Å)

11.198

Cell parameters b (Å)

6.561

Cell parameters c (Å)

20.761

Cell parameters a/b or c/a

1.707

Cell parameters c/b

3.164

Cell parameters α

90°

Cell parameters β

93.88

Cell parameters γ

90°

Z

8

Volumne (ų)

1521.816

X-Ray Powder Diffraction

10.32(80),
5.18(40),
3.45(100),
3.05(50),
3.03(50),
2.853(40),
2.676(30),
2.589(40)
XRD chart Biringuccite

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

Crystal Structure 3D

Open larger view

Physical Properties

Density (g/cm³)

2.32 (gemessen) 2.297 (berechnet)

2.296 ( ρ calc. Mineralienatlas )

Instability

+++ H2O

(Co-)Type locality

(Co-)Type locality

Italien/Toskana (Toscana)/Pisa, Provinz/Pomarance/Larderello

Preface

Author (Name, Year)

Cipriani & Vannuccini, 1961

References

Accademia Nazionale dei Lincei, Rendiconti, Classe di Scienze Fisiche, Matematiche, e Naturali 30 (1961), 74

Other languages

German

Biringuccit

Spanish

Biringuccita

French

Biringuccite

English

Biringuccite

Russian

Бирингучит

CNMNC symbol

Symbol

Bgc