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Borax

Pictures (14 Images total)

Borax
Views (File:
1275210946
): 6189
Borax
Größe: 32,9 x 23,6 cm; Fundort: U. S. Borax Open Pit, Boron, Kern Co., Kalifornien, USA
Copyright: Rock Currier; Contribution: slugslayer
Location: USA/Kalifornien (California)/Kern Co./Kramer District/Boron/Kramer Boratlagerstätte/U.S. Borax Mine/U.S. Borax Open Pit (Boron Pit, Rio Tinto Borax Mine)
Mineral: Borax
Image: 1275210946
Rating: 8 (votes: 1)
License: Usage for Mineralienatlas project only
Borax

Größe: 32,9 x 23,6 cm; Fundort: U. S. Borax Open Pit, Boron, Kern Co., Kalifornien, USA
Copyright: Rock Currier
Contribution: slugslayer 2010-05-30
Locality: U.S. Borax Open Pit (Boron Pit, Rio Tinto Borax Mine) / U.S. Borax Mine / Kramer Boratlagerstätte / Boron / Kramer District / Kern Co. / Kalifornien (California) / USA
Borax
Views (File:
1180352313
): 29072
Borax
Fundort: Türkei
Copyright: rtbstone; Contribution: rtbstone
Location: Türkei
Mineral: Borax
Image: 1180352313
Rating: 6.5 (votes: 2)
License: Usage for Mineralienatlas project only
Borax

Fundort: Türkei
Copyright: rtbstone
Contribution: rtbstone 2007-05-28
Locality: Türkei
Borax
Views (File:
1267130908
): 6421
Borax
Größe: 53x46 mm; Fundort: U. S. Borax Open Pit, Boron, Kern Co., Kalifornien, USA
Copyright: John Sobolewski; Contribution: slugslayer
Location: USA/Kalifornien (California)/Kern Co./Kramer District/Boron/Kramer Boratlagerstätte/U.S. Borax Mine/U.S. Borax Open Pit (Boron Pit, Rio Tinto Borax Mine)
Mineral: Borax
Image: 1267130908
Rating: 6.5 (votes: 2)
License: Usage for Mineralienatlas project only
Borax

Größe: 53x46 mm; Fundort: U. S. Borax Open Pit, Boron, Kern Co., Kalifornien, USA
Copyright: John Sobolewski
Contribution: slugslayer 2010-02-25
Locality: U.S. Borax Open Pit (Boron Pit, Rio Tinto Borax Mine) / U.S. Borax Mine / Kramer Boratlagerstätte / Boron / Kramer District / Kern Co. / Kalifornien (California) / USA
Borax XX
Views (File:
1215159939
): 10205
Borax XX
Größe: 8x6 cm; Fundort: Larderello, Pomaranz, Pisa, Toskana, Italien
Copyright: Leonardus; Contribution: slugslayer
Location: Italien/Toskana (Toscana)/Pisa, Provinz/Pomarance/Larderello
Mineral: Borax
Image: 1215159939
Rating: 7 (votes: 1)
License: Usage for Mineralienatlas project only
Borax XX

Größe: 8x6 cm; Fundort: Larderello, Pomaranz, Pisa, Toskana, Italien
Copyright: Leonardus
Contribution: slugslayer 2008-07-04
Locality: Larderello / Pomarance / Pisa, Provinz / Toskana (Toscana) / Italien
Borax
Views (File:
1275210658
): 3515
Borax
Größe: 76x64 mm; Fundort: U. S. Borax Open Pit, Boron, Kern Co., Kalifornien, USA
Copyright: Rock Currier; Contribution: slugslayer
Location: USA/Kalifornien (California)/Kern Co./Kramer District/Boron/Kramer Boratlagerstätte/U.S. Borax Mine/U.S. Borax Open Pit (Boron Pit, Rio Tinto Borax Mine)
Mineral: Borax
Image: 1275210658
Rating: 7 (votes: 1)
License: Usage for Mineralienatlas project only
Borax

Größe: 76x64 mm; Fundort: U. S. Borax Open Pit, Boron, Kern Co., Kalifornien, USA
Copyright: Rock Currier
Contribution: slugslayer 2010-05-30
Locality: U.S. Borax Open Pit (Boron Pit, Rio Tinto Borax Mine) / U.S. Borax Mine / Kramer Boratlagerstätte / Boron / Kramer District / Kern Co. / Kalifornien (California) / USA
Borax
Views (File:
1275210866
): 1802
Borax
Größe: 18,9 x 11,7 cm; Fundort: U. S. Borax Open Pit, Boron, Kern Co., Kalifornien, USA
Copyright: Rock Currier; Contribution: slugslayer
Location: USA/Kalifornien (California)/Kern Co./Kramer District/Boron/Kramer Boratlagerstätte/U.S. Borax Mine/U.S. Borax Open Pit (Boron Pit, Rio Tinto Borax Mine)
Mineral: Borax
Image: 1275210866
Rating: 7 (votes: 1)
License: Usage for Mineralienatlas project only
Borax

Größe: 18,9 x 11,7 cm; Fundort: U. S. Borax Open Pit, Boron, Kern Co., Kalifornien, USA
Copyright: Rock Currier
Contribution: slugslayer 2010-05-30
Locality: U.S. Borax Open Pit (Boron Pit, Rio Tinto Borax Mine) / U.S. Borax Mine / Kramer Boratlagerstätte / Boron / Kramer District / Kern Co. / Kalifornien (California) / USA

You find additional Borax specimen at the Geolitho Museum

Collectors Summary

Color farblos
Streak color weiß
Hardness (Mohs) 2.00 - 2.50
Solubility +++ H2O, Säuren, - Alkohole, Aufbewahren in einem feuchten undversiegelten Behälter
Crystal System monoklin, C2/c

Chemism

Chemical formula

Na2B4O5(OH)4·8H2O

Chemical composition

Natrium, Bor, Sauerstoff, Wasserstoff

Unit weight: 381.3755904 u; Number of atoms in the formula: 43

Info

Empirical formula:

Na2B4O5(OH)4·8H2O

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Hydrogen

H

5.29

20

46.51

1.0079470

20.1589400
Boron

B

11.34

4

9.30

10.8117000

43.2468000
Oxygen

O

71.32

17

39.53

15.9994300

271.9903100
Sodium

Na

12.06

2

4.65

22.9897702

45.9795404

Analysis wt%

Na2O : 16.26, B2O3 : 36.51, H2O : 47.23 (Ref: berechnet)

Strunz 9th edition incl. updates

6.DA.10

6: Borate
D: Tetraborate
A: Insel(Neso)-Tetraborate
10:Borax-Gruppe

Lapis Classification

V/H.10-030

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

Classification by Hölzel

6.DA.170

6: Borates
D: Tetraborates
A: Nesotetraborates
1: Borax-Group - 4(2P+2T)

Dana 8th edition

26.04.01.01

26: Hydrated Borates Containing Hydroxyl or Halogen
04: 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

0.025
Birefringence chart\! Borax title=Birefringence chart Borax

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

1.447

RI value β

1.469

RI value γ / ε

1.472

Ri mean

1.463

2V angle

Biaxial (-) 40°

Optical Data Luminescence

Color LW-UV (365nm)

  

gelblich weiß

LW-UV Intensity

schwach

Color SW-UV (254nm)

  

gelblich weiß

SW-UV Intensity

schwach

Afterglow (Persistant Luminescence)

keine Daten

Crystallography

Crystal System

monoklin

Class (H-M)

2/m

Space Group number

15

Space Group

C2/c

Cell parameters a (Å)

11.879

Cell parameters b (Å)

10.644

Cell parameters c (Å)

12.201

Cell parameters a/b or c/a

1.116

Cell parameters c/b

1.146

Cell parameters α

90°

Cell parameters β

106.62

Cell parameters γ

90°

Z

4

Volumne (ų)

1478.246

X-Ray Powder Diffraction

5.84(40),
5.69(50),
4.86(80),
3.936(40),
2.848(60),
2.833(60),
2.576(100),
2.565(90)
XRD chart Borax

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)

2.00 - 2.50

VHN (Hardness Vickers)

42 (ungefähre Angabe abgeleitet aus der Mohshärte)

Density (g/cm³)

1.715 (gemessen)

1.714 ( ρ calc. Mineralienatlas )

Instability

+++ H2O, Säuren, - Alkohole, Aufbewahren in einem feuchten undversiegelten Behälter

(Co-)Type locality

(Co-)Type locality

Indien/Jammu und Kashmir/Ladakh, Division

Preface

Author (Name, Year)

Wallerius, 1741 (?)

Relevance, Usage

Wird zur Herstellung von Gläsern hoher Festigkeit und von Email verwendet, dient als Zusatz in Waschmitteln und Düngemitteln und als Ausgangssubstanz für die Grundstoffindustrie

Additional Information

Synthetisches Borax wird für die Herstellung der bekannten Boraxperle verwendet

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: H360Fd: Kann die Fruchtbarkeit beeinträchtigen. Kann vermutlich das Kind im Mutterleib schädigen., P201: Vor Gebrauch besondere Anweisungen einholen., P308+P313: Bei Exposition oder falls betroffen: Ärztlichen Rat einholen / ärztliche Hilfe hinzuziehen.

References

Handbook of Mineralogy (Anthony et al.), 5 (2003), 79

Other languages

Indonesian

Bleng

Vietnamese

Borac

Italian

Borace

Bosnian (Latin Script)

Boraks

Turkish

Boraks

Polish

Boraks rodzimy

Lithuanian

Boraksas

Esperanto

Borakso

French

Borax

German

Borax

English

Borax

Catalan

Bòrax

Spanish

Bórax

Galician

Bórax

Hungarian

Bórax

Portuguese

Bórax

Czech

Tetraboritan sodný

Serbian (Cyrillic Script)

Боракс

Russian

Бура

Ukrainian

Бура

Arabic

بورق

Bengali

বোরাক্স

Japanese

ホウ砂

Simplified Chinese

硼砂

Alternative Name

Arabic

Albaurach

Arabic

Baurach

Bauracia

Arabic

Baurak

Arabic

Bauraq

Borate of soda

Latin

Borras

Armenian

Buraq

Persian

Būrah

Chrysocolla (of Agricola)

Prismatic borax-salt

French

Soude boratée

English

Tincal

Tinkal

Tinkar

CNMNC symbol

Symbol

Brx

Locations with GPS information