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Beryllite

Pictures (3 Images total)

Beryllit-Masse in Epididymit
Views (Image: 1245579675): 1570
Beryllit-Masse in Epididymit

Bildbreite: 16 mm; Fundort: Pegmatit Nr. 61, Karnasurt, Lovozero-Massiv, Kola, Russland

Copyright: Pavel M. Kartashov
Contribution: slugslayer 2009-06-21
Locality: Pegmatit Nr. 61 / Karnasurt, Berg / Lovozero / Kola-Halbinsel / Murmansk, Oblast / Nordwestrussland, Föderationskreis / Russland
Beryllit, radialstrahlig, in Epididymit
Views (Image: 1245579784): 1376
Beryllit, radialstrahlig, in Epididymit

Bildbreite: 10 mm; Fundort: Pegmatit Nr. 61, Karnasurt, Lovozero-Massiv, Kola, Russland

Copyright: Pavel M. Kartashov
Contribution: slugslayer 2009-06-21
Locality: Pegmatit Nr. 61 / Karnasurt, Berg / Lovozero / Kola-Halbinsel / Murmansk, Oblast / Nordwestrussland, Föderationskreis / Russland
Beryllit (derb, weiß) mit Neptunit
Views (Image: 1488624155): 614
Beryllit (derb, weiß) mit Neptunit (SNr: A003554)

von Ilimaussaq, Narsaq, Grönland, Dänemark; BB = 1.0 mm

Collection: Lithothek der Münchener Micromounter
Copyright: Hannes Osterhammer
Contribution: Münchener Micromounter 2017-03-04
Locality: Ilimaussaq-Komplex / Narsaq / Kommune Kujalleq / Grönland

Collectors Summary

Color weiß
Streak color weiß
Lustre Seidenglanz
Hardness (Mohs) 1
Crystal System orthorhombisch,

Chemism

Chem­ical formula

Be3SiO4(OH)2·H2O

Chem­ical com­po­si­tion

Beryllium, Silicium, Sauerstoff, Wasserstoff

Unit weight: 171.1498749 u; Number of atoms in the formula: 15

Info

Empirical formula:

Be3SiO4(OH)2·H2O

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Hydrogen

H

2.36

4

26.67

1.0079470

4.0317880

Beryllium

Be

15.80

3

20.00

9.0121823

27.0365469

Oxygen

O

65.44

7

46.67

15.9994300

111.9960100

Silicon

Si

16.41

1

6.67

28.0855300

28.0855300

Anal­y­sis wt%

SiO2 : 34.10, Al2O3 : 1.63, BeO : 40.00, CaO : 0.50, Na2O : 2.42, H2O : 22.20 (Ref: Doklady Akademiia Nauk, SSSR 55)

Strunz 9th edi­tion incl. updates

9.AE.05

9: Silikate (Germanate)
A: Inselsilikate (Nesosilikate)
E: Insel(Neso)silikate mit zusätzlichem (O,OH,F,H2O); Kationen in tetrahedralrt [4] und meist größerer Koordination
05:Beryllit-Gruppe

Lapis Clas­sifica­tion

VIII/B.01-030

VIII: SILIKATE
B: Inselsilikate mit tetraederfremden Anionen
1: Kationen in tetraedrischer oder oktaedrischer Koordination [4/6]

Clas­sifica­tion by Hölzel

9.AI.100

9: SILICATES
A: Nesosilicates
I: Nesosilicates with OH
1: C small; Beryllite-Euclase-Topaz-Group

IMA sta­tus

Erstbeschreibung vor CNMNC-Gründung (1959), als Mineral meist anerkannt

Min­eral sta­tus

anerkanntes Mineral

Optical Properties

Color

weiß

Streak color

weiß

Diaphane­ity (Trans­parency)

transparent

Lus­tre

Seidenglanz

max. Birefrin­gence

0.019

Birefringence chart\! Beryllite title=Birefringence chart Beryllite

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

1.541 - 1.544

RI value β

1.553

RI value γ / ε

1.560 - 1.562

Ri mean

1.555

2V angle

Biaxial (-) 45°<

Ori­enta­tion

Positive Elongation

Optical Data Luminescence

Lumi­nes­cence

fluoreszierend

Color LW-UV (365nm)

 

bläulich

LW-UV Intensity

mittel

MW-UV (320nm)

 

bläulich

MW-UV Intensity

mittel

Color SW-UV (254nm)

 

bläulich weiß

SW-UV Intensity

mittel

LW-UV Other Col­ors

 

grün

SW-UV Other Col­ors

   

grün, blau

After­glow (Per­sistant Lumi­nes­cence)

keine Daten

Ther­mo­lu­mi­nes­cence

vorhanden

Crystallography

Crystal Sys­tem

orthorhombisch

Cell param­e­ters α

90°

Cell param­e­ters γ

90°

X-Ray Pow­der Diffrac­tion

4.01(100),
3.64(90),
3.39(70),
3.19(70),
2.90(70),
2.34(100),
2.12(70),
1.351(80)

XRD chart Beryllite

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

Physical Properties

Hard­ness (Mohs)

1

Density (g/cm³)

2.196

Preface

Name from

In Anspielung auf das Beryllium in seiner Zusammensetzung

Author (Name, Year)

Kuz'menko, 1954

References

Doklady Akademiia Nauk, SSSR (USSR) (in Russian) 99 (1954), 451

American Mineralogist 40 (1955), 787

Varieties

Metaberyllite

Beryllit mit niedrigerem H2O Bestandteil

Other languages

Spanish

Berilita

German

Beryllit

French

Beryllite

English

Beryllite

Russian

Бериллит

Traditional Chinese

水矽鈹石

Simplified Chinese

水硅铍石

Alternative Name

Spanish

Beryllita

CNMNC symbol

Symbol

Byt

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

German pages

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

English pages

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

Russian pages

Webmineral.ru - search for: Бериллит

Mineral Dealer

German pages

hausen - Mineralgroßhandel - search for: Beryllit
Crystal-Treasure.com - search for: Beryllit
Bosse - search for: Beryllit
Edelsteine Neuburg - Gundolf Fischer - search for: Beryllit