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Epistilbite

Pictures (40 Images total)

Epistilbit
Views (Image: 1293661596): 1314
Epistilbit

Größe: 1,16 mm; Fundort: Steinbruch Puu o Ehu, Kailua, Insel Oahu, Hawaii, USA
Collection: Domenico Preite
Copyright: Matteo Chinellato
Contribution: Hg 2010-12-29
Locality: Steinbruch Puu o Ehu / Kailua / O'ahu (Oahu), Insel / Honolulu Co. / Hawaii / USA
Epistilbit
Views (Image: 1231056817): 2757
Epistilbit

Fundort: Jalgaon, Maharashtra, Indien; Größe: 49x46x45 mm
Copyright: Rob Lavinsky
Contribution: slugslayer 2009-01-04
Locality: Jalgaon, Distrikt / Maharashtra / Indien
Epistilbit
Views (Image: 1650639359): 76
Epistilbit

Epistilbit; Siatorská Bukovinka,Slowakei; Stufengröße: 4 x 3 cm
Collection: Rockhounder
Copyright: Rockhounder
Contribution: Rockhounder 2022-04-22
Locality: Siatorská Bukovinka / Lučenec, Okres / Banskobystrický kraj / Slowakei
Epistilbit
Views (Image: 1377446329): 2282, Rating: 8.2
Epistilbit (SNr: A024981)

Langprismatische farblose Kristallgruppe mit Adular, BB = 3,8 mm; Fundort: Arvigo, Calancatal, Graubünden, Schweiz.
Collection: Lithothek der Münchener Micromounter
Copyright: Bebo
Contribution: Münchener Micromounter 2013-08-25
Locality: Arvigo / Calanca / Moesa (Misox), Region / Graubünden, Kanton / Schweiz
rosarote Epistilbit XX mit Heulandit XX
Views (Image: 1147043631): 1646, Rating: 7.5
rosarote Epistilbit XX mit Heulandit XX

Größe: 85x72x42mm; Fundort: Jalgaon, Maharashtra, Indien

Copyright: Rob Lavinsky
Contribution: slugslayer 2006-05-08
Locality: Jalgaon, Distrikt / Maharashtra / Indien
Epistilbit
Views (Image: 1231056904): 2257
Epistilbit

Fundort: Poona, Maharashtra, Indien; Größe: 52x45x35 mm
Copyright: Rob Lavinsky
Contribution: slugslayer 2009-01-04
Locality: Pune (Poona), Distrikt / Maharashtra / Indien

Collectors Summary

Color farblos bis weiß, rosa, gelblich.
Streak color weiß
Lustre Glasglanz bis Perlmuttglanz
Hardness (Mohs) 4
Solubility +++ Säuren
Crystal System monoklin, C2
Morphology pseudo-orthorhombischer Habitus, kurzprismatische Kristalle, meist nach c gestreckt.

Chemism

Chem­ical formula

Ca3(Si18Al6)O48·16H2O

Chem­ical com­po­si­tion

Aluminium, Calcium, Silicium, Sauerstoff, Wasserstoff

Unit weight: 1843.8817932 u; Number of atoms in the formula: 123

Info

Empirical formula:

Ca3(Si18Al6)O48·16H2O

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Hydrogen

H

1.75

32

26.02

1.0079470

32.2543040
Oxygen

O

55.53

64

52.03

15.9994300

1,023.9635200
Aluminium

Al

8.78

6

4.88

26.9815382

161.8892292
Silicon

Si

27.42

18

14.63

28.0855300

505.5395400
Calcium

Ca

6.52

3

2.44

40.0784000

120.2352000

Anal­y­sis wt%

SiO2 : 57.40, Al2O3 : 17.70, CaO : 8.40, Na2O : 0.60, H2O : 15.30 (Ref: American Mineralogist 74)

Strunz 9th edi­tion incl. updates

9.GD.45

9: Silikate (Germanate)
G: Gerüstsilikate (Tektosilikate) mit zeolithischem H2O; Familie der Zeolithe
D: Ketten von fünfer-Ringen
45:Epistilbit-Gruppe

Lapis Clas­sifica­tion

VIII/J.23-070

VIII: SILIKATE
J: Gerüstsilikate (mit Zeolithen)
23: Zeolith-Gruppe; Blätterzeolithe

Clas­sifica­tion by Hölzel

9.FM.320

9: SILICATES
F: Tektosilicates
M: Mordenite-Group

IMA sta­tus

Anerkannt von der CNMNC

Min­eral sta­tus

anerkanntes Mineral

IMA Classification

IMA Clas­sifica­tion

 Zeolite group  ⇒ EPI zeolite structure group

Optical Properties

Color

farblos bis weiß, rosa, gelblich.

Streak color

weiß

Lus­tre

Glasglanz bis Perlmuttglanz

max. Birefrin­gence

0.010
Birefringence chart\! Epistilbite title=Birefringence chart Epistilbite

Michel-Levy Color Chart viewed according to the maximum birefringence (at 30μm). Mineral color is not taken into account. Click on the image to enlarge or change thickness.

RI value α / ω / n

1.502

RI value β

1.510

RI value γ / ε

1.512

Ri mean

1.508

2V angle

Biaxial (-) 45°~

Optical Data Luminescence

Color LW-UV (365nm)

  

weiß

Color SW-UV (254nm)

  

weiß

SW-UV Intensity

sehr schwach

After­glow (Per­sistant Lumi­nes­cence)

keine Daten

Crystallography

Crystal Sys­tem

monoklin

Class (H-M)

2

Space Group number

5

Space Group

C2

Cell param­e­ters a (Å)

9.096

Cell param­e­ters b (Å)

17.761

Cell param­e­ters c (Å)

10.236

Cell param­e­ters a/b or c/a

0.512

Cell param­e­ters c/b

0.576

Cell param­e­ters α

90°

Cell param­e­ters β

124.58

Cell param­e­ters γ

90°

Z

1

Volumne (ų)

1361.521

X-Ray Pow­der Diffrac­tion

8.90(100),
6.90(30),
4.92(50),
3.924(20),
3.870(70),
3.446(90),
3.208(80),
2.917(50)
XRD chart Epistilbite

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

Morphol­ogy

pseudo-orthorhombischer Habitus, kurzprismatische Kristalle, meist nach c gestreckt.

Crystals 3D

Open larger view

Crystal Structure 3D

Open larger view

Physical Properties

Hard­ness (Mohs)

4

VHN (Hard­ness Vick­ers)

190 (ungefähre Angabe abgeleitet aus der Mohshärte)

Density (g/cm³)

2.2 - 2.3

2.249 ( ρ calc. Mineralienatlas )

Radioac­tiv­ity

nicht vorhanden

Insta­bil­ity

+++ Säuren

(Co-)Type locality

(Co-)Type locality

Island/Ostisland (Austurland), Region/Suður-Múlasysla/Berufjörður/Bulandstindur/Teigarhorn

Type mate­r­ial

Mineraliensammlung des Museums für Naturkunde Berlin

Col­lec­tion number of type mate­r­ial

Probe 1999-0100

Preface

Occurrences

Epistilbit findet sich in Hohlräumen vulkanischer Gesteine und auf Alpinen Klüften.

Rare­ness

lt. Lapis-Mineralienverzeichnis - + -

Author (Name, Year)

Rose, 1826

References

Canadian Mineralogist 35 (1997), 1571

IMA group assignments

 
Zeolite group
 
 
 

 
 
EPI zeolite structure group
 
 
 

 
 
 
Epistilbite
Ca3(Si18Al6)O48·16H2O
monoklin
C2

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Actuality: 22. Jun 2022 - 23:31:10

Other languages

German

Epistilbit

Spanish

Epistilbita

English

Epistilbite

French

Epistilbite

Russian

Эпистильбит

Simplified Chinese

柱沸石

Alternative Name

German

Makrotyper Monophan

German

Monophan

Monophane

German

Orizit

Spanish

Orizita

Orizite

German

Oryzit

Spanish

Oryzita

English

Oryzite

CNMNC symbol

Symbol

Estb

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

German pages

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Mineralienatlas.de (Forum) - search for: Epistilbit

English pages

 Mindat - search for: Epistilbite
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Handbook-of-Mineralogy - search for: Epistilbite
RRUFF - Raman, XRD and other mineral data - search for: Epistilbite
RRUFF - References and PDF downloads - search for: Epistilbite
American-Mineralogist-Crystal-Structure-Database - search for: Epistilbite
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Russian pages

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German pages

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