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Minerals - Lévyne-(Ca) | TerraCollect

Mineral - Lévyne-(Ca)

Lévyne-(Ca)(Ca,Na₂,K₂)[Al₂Si₄O₁₂] · 6H₂O

Chemical Properties

Mineral Class

Silicates

Toxicity

none

Formula

(Ca,Na₂,K₂)[Al₂Si₄O₁₂] · 6H₂O

Unit Cell

a=13,34 c=23,01 Z=3

Physical Properties

Hardness

4 - 4.5

Streak

white

Density

Normal (2-3,5)

Optical Properties

Color

whitebrownredorangeyellowbrown whitecolorless

Birefringence

0.002 - 0.008

Luster

Vitreous

Transparency

translucent,

transparent

Pleochroism

Geomineralogical Properties

Composition

Elements

Mass

SiO₂

46,76

Al₂O₃

21,91

CaO

11,12

Na₂O

1,34

K₂O

0,21

H₂O

18,65

Colorado

Groups and Members

Zeolith-Gruppe

LEV-Zeolith-Strukturgruppe

Lévyn-Serie

Cleavage

Undeutlich auf (101)

Fracture

conchoidal,

uneven

Tenacity

Brittle

Crystal System

trigonal

Point Group

Space Group

Habit

leafy, lamellar, tabular

Formation

hydrothermal, in vulkanischen Basalten

Paragenesis

Twinning

Durchdringungszwillinge auf (001)

Rarity

Common

Synonyms

Lévyne-(Ca)