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Sborgite

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Sborgit
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Sborgit
Aggregat von Sborgit, Furnace Creek, Inyo County, Kalifornien, USA; BB < 1 mm
Copyright: MinTreasure.com (Carsten Slotta); Contribution: openpit
Location: USA/Kalifornien (California)/Inyo Co./Death Valley National Park/Furnace Creek District
Mineral: Sborgite
Image: 1591973393
License: Usage for Mineralienatlas project only
Sborgit

Aggregat von Sborgit, Furnace Creek, Inyo County, Kalifornien, USA; BB < 1 mm

Copyright: MinTreasure.com (Carsten Slotta)
Contribution: openpit 2020-06-12
Locality: Furnace Creek District / Death Valley National Park / Inyo Co. / Kalifornien (California) / USA

Collectors Summary

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

Chemism

Chemical formula

NaB5O6(OH)4·3H2O

Chemical composition

Natrium, Bor, Sauerstoff, Wasserstoff

Unit weight: 295.1203302 u; Number of atoms in the formula: 29

Info

Empirical formula:

NaB5O6(OH)4·3H2O

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Hydrogen

H

3.42

10

34.48

1.0079470

10.0794700

Boron

B

18.32

5

17.24

10.8117000

54.0585000

Oxygen

O

70.48

13

44.83

15.9994300

207.9925900

Sodium

Na

7.79

1

3.45

22.9897702

22.9897702

Analysis wt%

Na2O : 10.57, B2O3 : 58.93, H2O : 30.58 (Ref: ASTSN Pisa,58)

Strunz 9th edition incl. updates

6.EA.05

6: Borate
E: Pentaborate
A: Insel(Neso)-Pentaborate
05:Sborgit-Gruppe

Lapis Classification

V/H.15-030

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

Classification by Hölzel

6.EA.100

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

Dana 8th edition

26.05.01.01

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

farblos

Streak color

weiß

max. Birefringence

0.076

Birefringence chart\! Sborgite title=Birefringence chart Sborgite

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

1.431

RI value β

1.438

RI value γ / ε

1.507

Ri mean

1.459

2V angle

Biaxial (+) 35°

Crystallography

Crystal System

monoklin

Class (H-M)

2/m

Space Group number

15

Space Group

C2/c

Cell parameters a (Å)

11.119

Cell parameters b (Å)

16.474

Cell parameters c (Å)

13.576

Cell parameters a/b or c/a

0.675

Cell parameters c/b

0.824

Cell parameters α

90°

Cell parameters β

113.83

Cell parameters γ

90°

Z

8

Volume (ų)

2274.774

X-Ray Powder Diffraction

4.61(100),
4.30(20),
3.74(10),
3.57(20),
3.31(90),
3.20(50),
3.18(20),
3.04(20)

XRD chart Sborgite

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

Crystal Structure 3D

Open larger view

Physical Properties

Density (g/cm³)

1.713 (gemessen)

1.723 ( ρ calc. Mineralienatlas )

Instability

+++ H2O

Preface

Author (Name, Year)

Cipriani, 1957

Safety Instructions

Industrial chemicals are often present in powder form and therefore often contain much higher dangers than natural, crystalline substances. These hazard statements refer to the classification of industrially used chemical compounds that may also occur in this natural mineral. The hazard classification makes no claim to completeness.




Safety classes: H361d: Kann vermutlich das Kind im Mutterleib schädigen.

References

Accademia Nazionale dei Lincei, Rendiconti, Classe di Scienze Fisiche, Matematiche, e Naturali 22 (1957), 519

Other languages

German

Sborgit

Spanish

Sborgita

English

Sborgite

French

Sborgite

Russian

Сборджит

CNMNC symbol

Symbol

Srg

IDs

GUSID (Global unique identifier short form) 4y_7ISnMeEiAxddarnHwug
GUID (Global unique identifier) 21FB2FE3-CC29-4878-80C5-D75AAE71F0BA
Database ID 3405