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Tritomite-(Y)

Additional Functions

Collectors Summary

Color bräunlichschwarz
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

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

Volumne (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

(Co-)Type locality

(Co-)Type locality

Kanada/Ontario/Haliburton Co./Highlands East Township/Tritomit-(Y)-Fundstelle

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

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

German pages

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

English pages

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

Russian pages

 Webmineral.ru - search for: Тритомит-(Y)

Mineral Dealer

German pages

 hausen - Mineralgroßhandel - search for: Tritomit-(Y)
Crystal-Treasure.com - search for: Tritomit-(Y)
Bosse - search for: Tritomit-(Y)
Edelsteine Neuburg - Gundolf Fischer - search for: Tritomit-(Y)