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Minerals - Mosandrite-(Ce) | TerraCollect

Mineral - Mosandrite-(Ce)

Mosandrite-(Ce)(Ca₃Ce)Na(NaCa)Ti(Si₂O₇)₂(OF)F₂

Chemical Properties

Mineral Class

Silicates

Toxicity

none

Formula

(Ca₃Ce)Na(NaCa)Ti(Si₂O₇)₂(OF)F₂

Unit Cell

a=7,41 b=5,68 c=18,84 β=101° Z=2

Physical Properties

Hardness

4 - 5

Streak

yellow

Density

Normal (2-3,5)

Optical Properties

Color

brownorangeyellow

Birefringence

0,012

Luster

Vitreous

Transparency

translucent,

opaque

Pleochroism

Geomineralogical Properties

Crystal System

monoclinic

Composition

Elements

Mass

SiO₂

28,64

ZrO₂

1,45

ThO₂

1,04

CaO

24,74

MnO

0,60

MgO

0,63

Fe₂O₃

0,56

Cleavage

Gut auf (100)

Fracture

conchoidal,

uneven

Tenacity

Brittle

Point Group

Space Group

Habit

coarse, massive, prismatic

Formation

Magmatisch, Pegmatite in Nephelin-Syeniten

Paragenesis

Twinning

Rarity

Rarely

Synonyms

Mosandrite-(Ce)

Na₂O

1,06

K₂O

0,05

Y₂O₃

2,82

CeO₂

6,34

Ce₂O₃

8,22

TiO₂

8,89

F

2,08

H₂O

7,50

Nb₂O₃

1,40

Al₂O₃

0,40

FeO

0,25

La₂O₃

3,81

Pr₂O₃

1,19

Nd₂O₃

2,13

Sm₂O₃

0,26

Gd₂O₃

0,31

Dy₂O₃

0,32

Er₂O₃

0,39

Yb₂O₃

0,19

Cl

0,04

Norwegen

Groups and Members

Seidozerit-Supergruppe

Rinkit-Gruppe