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Tritomite-(Y)

Pictures (2 Images total)

Tritomit-(Y)
Views (File:
1675624426
): 80
Tritomit-(Y)
schwarzes, glasiges Aggregat von Tritomit-(Y), Lake Cranberry, Byram Township, Sussex Co., New Jersey, USA; BB < 5 mm
Copyright: mintreasure.com; Contribution: openpit
Location: USA/New Jersey/Sussex Co./Byram Township/Lake Cranberry
Mineral: Tritomite-(Y)
Image: 1675624426
License: Usage for Mineralienatlas project only
Tritomit-(Y)

schwarzes, glasiges Aggregat von Tritomit-(Y), Lake Cranberry, Byram Township, Sussex Co., New Jersey, USA; BB < 5 mm

Copyright: mintreasure.com
Contribution: openpit 2023-02-05
Locality: Lake Cranberry / Byram Township / Sussex Co. / New Jersey / USA
Tritomit-(Y)
Views (File:
1702765435
): 33
Tritomit-(Y)
Brauner Tritomit-(Y) (ohne Maßstab) von der Cardiff Uranium Mine, Cardiff Township, Haliburton Co., Ontario, Kanada. Ex Van den Broucke Sammlung (sh.: https://www.mindat.org/mesg-560223.html).
Copyright: Wikipedia-user: David Hospital; Contribution: oliverOliver
Location: Kanada/Ontario/Haliburton Co./Highlands East Township/Cardiff/Cardiff Uranium Mine
Mineral: Tritomite-(Y)
Image: 1702765435
License: Creative Commons - Attribution-ShareAlike 4.0 International  (CC BY-SA) V.4.0
Tritomit-(Y)

Brauner Tritomit-(Y) (ohne Maßstab) von der Cardiff Uranium Mine, Cardiff Township, Haliburton Co., Ontario, Kanada. Ex Van den Broucke Sammlung (sh.: https://www.mindat.org/mesg-560223.html).

Copyright: Wikipedia-user: David Hospital
Contribution: oliverOliver 2023-12-16
Locality: Cardiff Uranium Mine / Cardiff / Highlands East Township / Haliburton Co. / Ontario / Kanada

Collectors Summary

Color bräunlichschwarz, braun
Lustre Harzglanz
Hardness (Mohs) 3.50 - 4.00
Solubility +++ HCl
Crystal System hexagonal, P63/m

Chemism

Chemical formula

(Y,Ca,La,Fe2+)5(Si,B,Al)3(O,OH,F)13

Chemical composition

Aluminium, Calcium, Eisen, Lanthanum, Silicium, Yttrium, Bor, Fluor, Sauerstoff, Wasserstoff

Unit weight: 672.223946985 u; Number of atoms in the formula: 24.9

Info

Empirical formula:

(Y0.55Ca0.3La0.1Fe0.05)5(Si0.6B0.3Al0.1)3(O0.6(OH)0.3F0.1)13

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Hydrogen

H

0.58

3.9

15.66

1.0079470

3.9309933

Boron

B

1.45

0.9

3.61

10.8117000

9.7305300

Oxygen

O

27.85

11.7

46.99

15.9994300

187.1933310

Fluorine

F

3.67

1.3

5.22

18.9984033

24.6979242

Aluminium

Al

1.20

0.3

1.20

26.9815382

8.0944615

Silicon

Si

7.52

1.8

7.23

28.0855300

50.5539540

Calcium

Ca

8.94

1.5

6.02

40.0784000

60.1176000

Iron

Fe

2.08

0.25

1.00

55.8452000

13.9613000

Yttrium

Y

36.37

2.75

11.04

88.9058520

244.4910930

Lanthanum

La

10.33

0.5

2.01

138.9055200

69.4527600

Analysis wt%

Nb2O5 : 1.44, TiO2 : 0.47, SiO2 : 24.40, ThO2 : 2.30, La2O3 : 1.33, Ce2O3 : 7.37, Pr2O3 : 1.12, Nd2O3 : 5.41, Sm2O3 : 1.55, Gd2O3 : 2.46, Dy2O3 : 2.18, Ho2O3 : 0.42, Er2O3 : 1.48, Yb2O3 : 1.33, Y2O3 : 9.48, Al2O3 : 1.46, Fe2O3 : 3.57, CaO : 12.90, MgO : 0.40, MnO : 0.54, Na2O : 0.68, H2O : 8.96, F : 0.40, B2O3 : 7.00, Ln2O3 : 35.11 (Ref: Canadian Mineralogist 73)

Strunz 9th edition incl. updates

9.AH.25

9: Silikate (Germanate)
A: Inselsilikate (Nesosilikate)
H: Insel(Neso)silikate mit CO3, SO4, PO4, etc.
25:Britholith-Gruppe

Lapis Classification

VIII/B.33-030

VIII: SILIKATE
B: Inselsilikate mit tetraederfremden Anionen
33: Kationen mit Koordinationszahlen zwischen [8] und [12]; Beryllium- und Bor-Inselsilikate

Classification by Hölzel

8.BO.860

8: PHOSPHATES ARSENATES VANADATES
B: Phosphates (+Anions -Water)
O: Apatite Supergroup
8: Phosphate or Boro Silico Apatites - Britholites

Dana 8th edition

54.02.05.02

54: Nesosilicates Nesosilicate Borosilicates and Some Beryllosilicates
02: Nesosilicates Nesosilicate Borosilicates and Some Beryllosilicates with B in [4] coordination
05: Tritomite group

IMA status

Mit Anerkennung der CNMNC umbenannt

Mineral status

anerkanntes Mineral

IMA Classification

IMA Classification

Apatite Supergroup  ⇒ Britholite group

Optical Properties

Color

bräunlichschwarz, braun

Lustre

Harzglanz

RI value α / ω / n

1.713

RI value β

metam.

Ri mean

1.713

2V angle

i metam.

Crystallography

Crystal System

hexagonal

Class (H-M)

6/m

Space Group number

176

Space Group

P63/m

Cell parameters a (Å)

9.35

Cell parameters b (Å)

-

Cell parameters c (Å)

6.88

Cell parameters a/b or c/a

0.736

Cell parameters c/b

-

Cell parameters α

90°

Cell parameters β

90°

Cell parameters γ

120°

Z

2

Volume (ų)

520.886

X-Ray Powder Diffraction

3.16(50),
2.83(100),
2.73(50),
1.96(40),
1.93(40),
1.85(70),
1.76(50),
1.11(50)

XRD chart Tritomite-(Y)

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

Crystals 3D

Open larger view

Physical Properties

Hardness (Mohs)

3.50 - 4.00

VHN (Hardness Vickers)

390 (ungefähre Angabe abgeleitet aus der Mohshärte)

Density (g/cm³)

3.81 (gemessen)

4.286 ( ρ calc. Mineralienatlas )

Instability

+++ HCl

Preface

Author (Name, Year)

Frondel, 1961

References

American Mineralogist 51 (1966), 152

IMA group assignments

Other languages

German

Tritomit-(Y)

Spanish

Tritomita-(Y)

English

Tritomite-(Y)

French

Tritomite-(Y)

Russian

Тритомит-(Y)

Japanese

イットリウムトリトマイト

Alternative Name

German

Spencit

Spanish

Spencita

Spencite

German

Tritomit

Spanish

Tritomita

Tritomite

CNMNC symbol

Symbol

Tto-Y

Locations with GPS information

IDs

GUSID (Global unique identifier short form) bh05t_gsdESKgwwKX_FeUw
GUID (Global unique identifier) B7391D6E-2CF8-4474-8A83-0C0A5FF15E53
Database ID 3912