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

Hydroxycalciobetafite

Collectors Summary

Hardness (Mohs) 4.5
Solubility - Säuren

Chemism

Chemical formula

Ca2(Ti,Nb)2(O,OH)6(OH)

Chemical composition

Calcium, Niob, Titan, Sauerstoff, Wasserstoff

Unit weight: 312.9265185 u; Number of atoms in the formula: 13.5

Info

Empirical formula:

Ca2(Ti0.75Nb0.25)2(O0.75(OH)0.25)6(OH)

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Hydrogen

H

0.81

2.5

18.52

1.0079470

2.5198675
Oxygen

O

35.79

7

51.85

15.9994300

111.9960100
Calcium

Ca

25.62

2

14.81

40.0784000

80.1568000
Titanium

Ti

22.94

1.5

11.11

47.8671000

71.8006500
Niobium

Nb

14.84

0.5

3.70

92.9063820

46.4531910

Analysis wt%

CaO : 10.94, PbO : 1.43, MnO : 0.62, FeO : 3.44, U3O8 : 22.79, Nb2O5 : 31.06, Ta2O5 : 3.33, TiO2 : 17.50, F : 1.35, H2O : 5.88 (Ref: Canadian Mineralogist 61)

Lapis Classification

IV/C.11-020

IV: OXIDE
C: Oxide mit Verhältnis Metall : Sauerstoff = 2:3 (M2O3 und verwandte Verbindungen)
11: Pyrochlor-Gruppe; BETAFIT-Untergruppe [Ti ± Nb]

Classification by Hölzel

4.CJ.110

4: OXIDES
C: R2O3 Sesquioxides
J: Betafite-Group, Ti-dominant on the B-site

Mineral status

Mineralstatus fragwürdig

Optical Properties

RI value α / ω / n

2.0!!

Ri mean

2.0

2V angle

Isotropisch

Crystallography

Cell parameters a (Å)

10.31

Cell parameters b (Å)

-

Cell parameters c (Å)

-

Cell parameters a/b or c/a

1.000

Cell parameters c/b

-

Cell parameters α

90°

Cell parameters β

90°

Cell parameters γ

90°

Z

8

Volume (ų)

1095.9

Crystals 3D

Open larger view

Physical Properties

Hardness (Mohs)

4.5

VHN (Hardness Vickers)

268 (100g)

Density (g/cm³)

4.15 (gemessen)

3.793 ( ρ calc. Mineralienatlas )

Instability

- Säuren

Other languages

German

Hydroxycalciobetafit

English

Hydroxycalciobetafite

IDs

GUSID (Global unique identifier short form) 5pRLOlYDj0eJqF5nWaW8cA
GUID (Global unique identifier) 3A4B94E6-0356-478F-89A8-5E6759A5BC70
Database ID 7210