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Jarandolite

Pictures (1 Images total)

Jarandolit
Views (File:
1247427140
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Jarandolit
Bildbreite: 4,5 mm; Fundort: Stbr. Kohnstein bei Niedersachswerfen, Nordhausen, Niedersachsen, Deutschland
Copyright: Joachim Esche; Contribution: slugslayer
Location: Deutschland/Thüringen/Nordhausen, Landkreis/Nordhausen/Salza/Steinbruch am Kohnstein
Mineral: Jarandolite
Image: 1247427140
License: Usage for Mineralienatlas project only
Jarandolit

Bildbreite: 4,5 mm; Fundort: Stbr. Kohnstein bei Niedersachswerfen, Nordhausen, Niedersachsen, Deutschland
Copyright: Joachim Esche
Contribution: slugslayer 2009-07-12
Locality: Steinbruch am Kohnstein / Salza / Nordhausen / Nordhausen, Landkreis / Thüringen / Deutschland

Collectors Summary

Color weiß bis farblos
Lustre Glasglanz
Hardness (Mohs) 5.5 - 6
Cleavages hochgradig prefect (001)
Solubility - H2O, + verdünnte HCl
Crystal System monoklin, P21/a

Chemism

Chemical formula

CaB3O4(OH)3

Chemical composition

Calcium, Bor, Sauerstoff, Wasserstoff

Unit weight: 187.533351 u; Number of atoms in the formula: 14

Info

Empirical formula:

CaB3O4(OH)3

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Hydrogen

H

1.61

3

21.43

1.0079470

3.0238410
Boron

B

17.30

3

21.43

10.8117000

32.4351000
Oxygen

O

59.72

7

50.00

15.9994300

111.9960100
Calcium

Ca

21.37

1

7.14

40.0784000

40.0784000

Analysis wt%

CaO : 30.56, B2O3 : 55.44, H2O : 13.36 (Ref: Cryst.Rep.94)

Strunz 9th edition incl. updates

6.CB.25

6: Borate
C: Triborate
B: Ketten u. Band (Ino)-Triborate
25:Jarandolit-Gruppe

Lapis Classification

V/J.03-005

V: NITRATE, CARBONATE UND BORATE
J: Kettenborate [B2O4] 2- bis [B6O10] 2-

Classification by Hölzel

6.CB.150

6: Borates
C: Triborates
B: Inotriborates
1: Colemanite-Group - 3(P+2T)

Dana 8th edition

25.03.06.01

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

IMA status

anerkannt 2003

Mineral status

anerkanntes Mineral

Optical Properties

Color

weiß bis farblos

Diaphaneity (Transparency)

durchscheinend bis transparent

Lustre

Glasglanz

max. Birefringence

0.053
Birefringence chart\! Jarandolite title=Birefringence chart Jarandolite

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

1.573

RI value β

1.586

RI value γ / ε

1.626

Ri mean

1.595

2V angle

Biaxial (+) 58°

Crystallography

Crystal System

monoklin

Class (H-M)

2/m

Space Group number

14

Space Group

P21/a

Cell parameters a (Å)

8.386

Cell parameters b (Å)

8.142

Cell parameters c (Å)

7.249

Cell parameters a/b or c/a

1.030

Cell parameters c/b

0.890

Cell parameters α

90°

Cell parameters β

98.33

Cell parameters γ

90°

Z

4

Volumne (ų)

489.731

X-Ray Powder Diffraction

4.32(57), 3.39(100), 3.13(50), 2.93(23), 2.606(25), 2.360(17), 2.287(19), 1.849(25)
XRD chart Jarandolite

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)

5.5 - 6

VHN (Hardness Vickers)

730 (ungefähre Angabe abgeleitet aus der Mohshärte)

Density (g/cm³)

2.49 (gemessen)

2.543 ( ρ calc. Mineralienatlas )

Cleavages

hochgradig prefect (001)

Tenacity

spröde

Instability

- H2O, + verdünnte HCl

(Co-)Type locality

(Co-)Type locality

Serbien/Jarandol Basin/Balevats/Pobrdzhsky Potok & Peskanya

Preface

Name from

Typlokalität (Jarandol-Becken))

Author (Name, Year)

Malinko & Anicic & Joksimovic & Lisitsyn & Rudnev & Dorokhova & Yamnov

References

New Data on Minerals 39 (2004), 26

Other languages

German

Jarandolit

Spanish

Jarandolita

English

Jarandolite

French

Jarandolite

Russian

Ярандолит

Simplified Chinese

羟硼钙石

Traditional Chinese

羥硼鈣石

Alternative Name

German

Jarandolith

Serbianite

Srbianite

CNMNC (IMA)-Number

IMA 1995-020

IMA 1995-020c

CNMNC symbol

Symbol

Jdo

Locations with GPS information