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Calciborite

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Calciborite
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Calciborite
Columnar aggregate of translucent Calciborite from its monomineral veinlet in marbles. Collected by S.V. Malinko. Excollection of I.V. Ostrovskaya. Abmessungen: 20 mm x 8 mm x 3 mm; Novofrolovskoye B-Cu deposit, Tur'insk, Turya river, Krasnotur'insk (Bogolovsk; Krasnoturjinsk; Krasnoturyinsk), Sverdlovskaya Oblast', Middle Urals, Urals Region, Russia
Copyright: Pavel M. Kartashov; Contribution: Stefan
Collection: Pavel M. Kartashov
Location: Russland/Ural, Föderationskreis/Swerdlowsk (Sverdlovskaya, Sverdlovsk), Oblast/Tur'insk-Auerbakovsk Erzfeld/Krasnoturjinsk/Turya, Fluss/Turjinsk/Novofrolovskoye B-Cu-Lagerstätte
Mineral: Calciborite
Image: 1460446239
License: Usage for Mineralienatlas project only
Calciborite

Columnar aggregate of translucent Calciborite from its monomineral veinlet in marbles. Collected by S.V. Malinko. Excollection of I.V. Ostrovskaya. Abmessungen: 20 mm x 8 mm x 3 mm; Novofrolovskoye...
Collection: Pavel M. Kartashov
Copyright: Pavel M. Kartashov
Contribution: Stefan 2016-04-12
Locality: Novofrolovskoye B-Cu-Lagerstätte / Turjinsk / Turya, Fluss / Krasnoturjinsk / Tur'insk-Auerbakovsk Erzfeld / Swerdlowsk (Sverdlovskaya, Sverdlovsk), Oblast / Ural, Föderationskreis / Russland

Collectors Summary

Color weiß
Streak color weiß
Hardness (Mohs) 3.5
Solubility ++ warme Säuren, - H2O
Crystal System orthorhombisch, Pccn

Additional information / Summary

Calciborit wurde zum ersten Mal in der Novoportovskoye Kupfer-Bor-Lagerstätte, in der Nähe von Krasnoturinsk, Turinsk Bezirk, Northern Ural, Russland im Jahr 1955 beschrieben. Calciborit wurde gebildet in einer Skarn-Lagerstätte im Kalkstein neben einer Quarz-Diorit-Intrusion. Begleiter sind Sibirskit (ein weiteres seltenes Calciumborat Mineral), Calcit, Dolomit, Granat, Magnetit und Mineralien der Pyroxen-Gruppe. Das Mineral wurde auch von der Fuka Mine von Präfektur Okayama, Japan berichtet.

Chemism

Chemical formula

CaB2O4

Chemical composition

Calcium, Bor, Sauerstoff

Unit weight: 125.69952 u; Number of atoms in the formula: 7

Info

Empirical formula:

CaB2O4

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Boron

B

17.20

2

28.57

10.8117000

21.6234000
Oxygen

O

50.91

4

57.14

15.9994300

63.9977200
Calcium

Ca

31.88

1

14.29

40.0784000

40.0784000

Analysis wt%

B2O3 : 55.39, CaO : 44.61 (Ref: berechnet)

Strunz 9th edition incl. updates

6.BC.10

6: Borate
B: Diborate
C: Ketten u. Band (Ino) - Dioborate mit Triangeln und /oder Tetraedern
10:Calciborit-Gruppe

Lapis Classification

V/J.02-010

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

Classification by Hölzel

6.BC.100

6: Borates
B: Diborates
C: Ino-diborates with triangles and/or tetrahedra
1: Double chains of corner-shared triangles and tetrahedra - 2(P+T)8

Dana 8th edition

24.05.02.01

24: Borates - Anhydrous
05: Borates - Anhydrous with miscellaneous formulae

IMA status

Erstbeschreibung vor CNMNC-Gründung (1959), als Mineral meist anerkannt

Mineral status

anerkanntes Mineral

Optical Properties

Color

weiß

Streak color

weiß

max. Birefringence

0.075
Birefringence chart\! Calciborite title=Birefringence chart Calciborite

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

1.595

RI value β

1.654

RI value γ / ε

1.670

Ri mean

1.640

2V angle

Biaxial (-) 54°

Crystallography

Crystal System

orthorhombisch

Class (H-M)

mmm

Space Group number

56

Space Group

Pccn

Cell parameters a (Å)

8.38

Cell parameters b (Å)

13.82

Cell parameters c (Å)

5.006

Cell parameters a/b or c/a

0.606

Cell parameters c/b

0.362

Cell parameters α

90°

Cell parameters β

90°

Cell parameters γ

90°

Z

8

Volume (ų)

579.753

X-Ray Powder Diffraction

7.10(60),
3.81(60),
3.57(80),
3.44(100),
2.66(60),
1.976(70),
1.870(70),
1.793(70)
XRD chart Calciborite

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

Crystal Structure 3D

Open larger view

Physical Properties

Hardness (Mohs)

3.5

VHN (Hardness Vickers)

2800 (ungefähre Angabe abgeleitet aus der Mohshärte)

Density (g/cm³)

2.878 (gemessen)

2.88 ( ρ calc. Mineralienatlas )

Instability

++ warme Säuren, - H2O

(Co-)Type locality

(Co-)Type locality

Russland/Ural, Föderationskreis/Swerdlowsk (Sverdlovskaya, Sverdlovsk), Oblast/Tur'insk-Auerbakovsk Erzfeld/Krasnoturjinsk/Turya, Fluss/Turjinsk/Novofrolovskoye B-Cu-Lagerstätte

Preface

Author (Name, Year)

Petrova, 1956

References

American Mineralogist 41 (1956), 815

Other languages

German

Calciborit

Spanish

Calciborita

English

Calciborite

French

Calciborite

Russian

Кальциборит

CNMNC symbol

Symbol

Cbo

Locations with GPS information

IDs

GUSID (Global unique identifier short form) glnG1JuxfkCiU2V5R1wy6g
GUID (Global unique identifier) D4C65982-B19B-407E-A253-6579475C32EA
Database ID 556