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

Uralborite

Collectors Summary

Color farblos
Streak color weiß
Hardness (Mohs) 4
Solubility +++ verdünnte HCl, - verdünnte CH3COOH
Crystal System monoklin, P21/n

Chemism

Chem­ical formula

CaB2O2(OH)4

Chem­ical com­po­si­tion

Calcium, Bor, Sauerstoff, Wasserstoff

Unit weight: 161.730168 u; Number of atoms in the formula: 13

Info

Empirical formula:

CaB2O2(OH)4

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Hydrogen

H

2.49

4

30.77

1.0079470

4.0317880

Boron

B

13.37

2

15.38

10.8117000

21.6234000

Oxygen

O

59.36

6

46.15

15.9994300

95.9965800

Calcium

Ca

24.78

1

7.69

40.0784000

40.0784000

Anal­y­sis wt%

B2O3 : 43.42, CaO : 34.87, H2O : 22.42 (Ref: J.Min.Petr.Sci.2000)

Strunz 9th edi­tion incl. updates

6.DA.35

6: Borate
D: Tetraborate
A: Insel(Neso)-Tetraborate
35:Uralborit-Gruppe

Lapis Clas­sifica­tion

V/H.08-010

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

Clas­sifica­tion by Hölzel

6.CA.500

6: Borates
C: Triborates
A: Nesotriborates
5: Uralborite-Group - 3(3T)+T (branched unit)

Dana 8th edi­tion

25.03.04.01

25: Anhydrous Borates Containing Hydroxyl or Halogen
03: Anhydrous Borates Containing Hydroxyl or Halogen

IMA sta­tus

Anerkannt von der CNMNC

Min­eral sta­tus

anerkanntes Mineral

Optical Properties

Color

farblos

Streak color

weiß

max. Birefrin­gence

0.011

Birefringence chart\! Uralborite title=Birefringence chart Uralborite

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

1.604

RI value β

1.609

RI value γ / ε

1.615

Ri mean

1.609

2V angle

Biaxial (+) 85°

Optical Data Luminescence

Color SW-UV (254nm)

 

violett

After­glow (Per­sistant Lumi­nes­cence)

keine Daten

Crystallography

Crystal Sys­tem

monoklin

Class (H-M)

2/m

Space Group number

14

Space Group

P21/n

Cell param­e­ters a (Å)

6.881

Cell param­e­ters b (Å)

12.305

Cell param­e­ters c (Å)

9.791

Cell param­e­ters a/b or c/a

0.559

Cell param­e­ters c/b

0.796

Cell param­e­ters α

90°

Cell param­e­ters β

97.27

Cell param­e­ters γ

90°

Z

8

Volumne (ų)

822.346

X-Ray Pow­der Diffrac­tion

7.68(100),
6.16(70),
3.43(80),
3.00(100),
2.26(80),
2.053(80),
1.914(80),
1.148(90)

XRD chart Uralborite

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

Crystal Structure 3D

Open larger view

Physical Properties

Hard­ness (Mohs)

4

VHN (Hard­ness Vick­ers)

372 (50g)

Density (g/cm³)

2.60

2.612 ( ρ calc. Mineralienatlas )

Insta­bil­ity

+++ verdünnte HCl, - verdünnte CH3COOH

Preface

Author (Name, Year)

Malinko, 1961

References

Soviet Physics, Crystallography 16 (1971), 186

Other languages

German

Uralborit

Spanish

Uralborita

English

Uralborite

French

Uralborite

Russian

Уралборит

CNMNC symbol

Symbol

Ubo

Automatic Links to external internet sources (Responsibility is with the operator)

German pages

DeWikiPedia - search for: Uralborit
Google-Bilder-Suche - search for: Uralborit
Mineralienatlas.de (Forum) - search for: Uralborit

English pages

Mindat - search for: Uralborite
Webmineral - search for:Uralborite
Handbook-of-Mineralogy - search for: Uralborite
RRUFF - Raman, XRD and other mineral data - search for: Uralborite
RRUFF - References and PDF downloads - search for: Uralborite
American-Mineralogist-Crystal-Structure-Database - search for: Uralborite
Strahlen.org - search for: Uralborite

Russian pages

Webmineral.ru - search for: Уралборит

Mineral Dealer

German pages

hausen - Mineralgroßhandel - search for: Uralborit
Crystal-Treasure.com - search for: Uralborit
Bosse - search for: Uralborit
Edelsteine Neuburg - Gundolf Fischer - search for: Uralborit

Locations with GPS information