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Brewsterite-Sr

Pictures (9 Images total)

Brewsterit -Sr xx
Views (Image: 1372010077): 1868
Brewsterit -Sr xx

Bellsgrove Mine Strontian Schottland - UK - . BB=16mm.

Collection: pilzpirat
Copyright: pilzpirat
Contribution: pilzpirat 2013-06-23
Locality: Bellsgrove Mine / Strontian / Highland / Schottland / UK
Brewsterit-Sr
Views (Image: 1259610943): 1253
Brewsterit-Sr

Bildbreite: 10 mm; Fundort: Whitesmith Mine, Strontian, Halbinsel Morvern, North West Highlands (Argyllshire), Schottland, UK

Copyright: Peter Haas
Contribution: slugslayer 2009-11-30
Locality: Whitesmith Mine / Strontian / Highland / Schottland / UK
Brewsterit-Sr
Views (Image: 1312653126): 1129
Brewsterit-Sr

Fundort: Whitesmith Mine bei Strontian, Schottland. Etwa 3,5x6,5x9 cm messende Stufe besetzt mit kleinen, klaren, glänzenden Brewsterit-Sr-Kristallen.

Copyright: Christiane David
Contribution: ZEO 2011-08-06
Locality: Whitesmith Mine / Strontian / Highland / Schottland / UK
Brewsterit-Sr
Views (Image: 1259611889): 1225
Brewsterit-Sr

Größe: 45x31 mm; Fundort: Whitesmith Mine, Strontian, Argyllshire, Schottland, UK

Copyright: John Sobolewski
Contribution: slugslayer 2009-11-30
Locality: Whitesmith Mine / Strontian / Highland / Schottland / UK
Brewsterit
Views (Image: 1267178883): 1528
Brewsterit

Whitesmith Mine, Strontian, Argyllshire, Schottland; 4 x 3 cm

Copyright: John Sobolewski
Contribution: slugslayer 2010-02-26
Locality: Whitesmith Mine / Strontian / Highland / Schottland / UK
Brewsterit-Sr auf Stilpnomelan
Views (Image: 1158089469): 1262, Rating: 4.25
Brewsterit-Sr auf Stilpnomelan

Fundort: Bellsgrove Mine, Strontian, North West Highlands (Argyllshire), Schottland, UK; Größe der Frontalflächen ca 1,5 x 2,5 mm

Copyright: Torben
Contribution: Torben 2006-09-12
Locality: Bellsgrove Mine / Strontian / Highland / Schottland / UK

Collectors Summary

Color weiß, gelblich weiß, grau
Streak color weiß
Hardness (Mohs) 4.25
Solubility +++ Säuren, + starke Detergentienlösungen
Crystal System monoklin, P21/m

Chemism

Chem­ical formula

(Sr,Ba,Ca)(Si6Al2)O16·5H2O

Chem­ical com­po­si­tion

Aluminium, Barium, Calcium, Silicium, Strontium, Sauerstoff, Wasserstoff

Unit weight: 666.3225064 u; Number of atoms in the formula: 40

Info

Empirical formula:

(Sr0.6Ba0.3Ca0.1)(Si6Al2)O16·5H2O

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Hydrogen

H

1.51

10

25.00

1.0079470

10.0794700

Oxygen

O

50.42

21

52.50

15.9994300

335.9880300

Aluminium

Al

8.10

2

5.00

26.9815382

53.9630764

Silicon

Si

25.29

6

15.00

28.0855300

168.5131800

Calcium

Ca

0.60

0.1

0.25

40.0784000

4.0078400

Strontium

Sr

7.89

0.6

1.50

87.6210000

52.5726000

Barium

Ba

6.18

0.3

0.75

137.3277000

41.1983100

Anal­y­sis wt%

SiO2 : 54.42, Al2O3 : 15.25, CaO : 1.19, SrO : 8.99, BaO : 6.80, H2O : 13.22 (Ref: Nat.Zeol.85)

Strunz 9th edi­tion incl. updates

9.GE.20

9: Silikate (Germanate)
G: Gerüstsilikate (Tektosilikate) mit zeolithischem H2O; Familie der Zeolithe
E: Tafeln mit 4-4-1-1 Struktureinheiten
20:

Lapis Clas­sifica­tion

VIII/J.23-080

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

Clas­sifica­tion by Hölzel

9.FN.260

9: SILICATES
F: Tektosilicates
N: Heulandite-Group

Dana 8th edi­tion

77.01.07.01

77: Tektosilicates Tectosilicate Zeolite group
01: Tektosilicates Tectosilicate Zeolite group true zeolites
07: Brewsterite and related species

Min­eral sta­tus

anerkanntes Mineral

IMA Classification

IMA Clas­sifica­tion

Zeolite group  ⇒ BRE zeolite structure group  ⇒ Brewsterite series

Optical Properties

Color

weiß, gelblich weiß, grau

Streak color

weiß

Diaphane­ity (Trans­parency)

transparent bis durchscheinend

max. Birefrin­gence

0.015

Birefringence chart\! Brewsterite-Sr title=Birefringence chart Brewsterite-Sr

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

1.508

RI value β

1.511

RI value γ / ε

1.523

Ri mean

1.514

2V angle

Biaxial (+) 55°~

Optical Data Luminescence

Lumi­nes­cence

fluoreszierend

Crystallography

Crystal Sys­tem

monoklin

Class (H-M)

2/m

Space Group number

11

Space Group

P21/m

Cell param­e­ters a (Å)

6.779

Cell param­e­ters b (Å)

17.520

Cell param­e­ters c (Å)

7.749

Cell param­e­ters a/b or c/a

0.387

Cell param­e­ters c/b

0.442

Cell param­e­ters α

90°

Cell param­e­ters β

94.47

Cell param­e­ters γ

90°

Z

2

Volumne (ų)

917.534

X-Ray Pow­der Diffrac­tion

8.78(30),
4.66(70),
3.269(40),
3.111(20),
2.920(100),
2.732(20),
2.724(20),
2.189(40)

XRD chart Brewsterite-Sr

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

Crystals 3D

Open larger view

Crystal Structure 3D

Open larger view

Physical Properties

Hard­ness (Mohs)

4.25

VHN (Hard­ness Vick­ers)

230 (ungefähre Angabe abgeleitet aus der Mohshärte)

Density (g/cm³)

2.45

2.412 ( ρ calc. Mineralienatlas )

Insta­bil­ity

+++ Säuren, + starke Detergentienlösungen

(Co-)Type locality

(Co-)Type locality

UK/Schottland/Highland/Strontian

IMA group assignments

Other languages

German

Brewsterit-Sr

Spanish

Brewsterita-Sr

French

Brewsterite-Sr

English

Brewsterite-Sr

Russian

Брюстерит-Sr

Traditional Chinese

鍶沸石

Simplified Chinese

锶沸石

Alternative Name

Brewsterit-(Sr)

Brewsterite-(Sr)

CNMNC symbol

Symbol

Brw-Sr

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

German pages

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

English pages

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

Russian pages

Webmineral.ru - search for: Брюстерит-Sr

Mineral Dealer

German pages

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

Locations with GPS information