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Garronite-Ca

Pictures (15 Images total)

Garronit
Views (File:
1231328503
): 1279
Garronit
Größe: 6,86 mm; Fundort: Fara Vicentino, Vicenza, Venetien (Veneto), Italien
Copyright: Matteo Chinellato; Contribution: Hg
Location: Italien/Venetien (Veneto), Region/Vicenza, Provinz/Fara Vicentino
Mineral: Garronite-Ca
Image: 1231328503
Rating: 8.67 (votes: 3)
License: Usage for Mineralienatlas project only
Garronit

Größe: 6,86 mm; Fundort: Fara Vicentino, Vicenza, Venetien (Veneto), Italien
Copyright: Matteo Chinellato
Contribution: Hg 2009-01-07
Locality: Fara Vicentino / Vicenza, Provinz / Venetien (Veneto), Region / Italien
Farbloser, prismatischer Calcit mit Garronit-Ca
Views (File:
1511368931
): 1277
Farbloser, prismatischer Calcit mit Garronit-Ca
vom Steinbruch Höwenegg bei Immendingen, Baden-Württemberg, BB = 3,8 mm
Copyright: Hannes Osterhammer; Contribution: Münchener Micromounter
Collection: Lithothek der Münchener Micromounter, Collection number: A038577, Donator: anatase2
Location: Deutschland/Baden-Württemberg/Freiburg, Bezirk/Tuttlingen, Landkreis/Immendingen/Höwenegg
Mineral: Calcite, Garronite-Ca
Image: 1511368931
Rating: 9 (votes: 3)
License: Usage for Mineralienatlas project only
Farbloser, prismatischer Calcit mit Garronit-Ca (SNr: A038577)  D

vom Steinbruch Höwenegg bei Immendingen, Baden-Württemberg, BB = 3,8 mm
Collection: Lithothek der Münchener Micromounter
Copyright: Hannes Osterhammer
Contribution: Münchener Micromounter 2017-11-22
Locality: Höwenegg / Immendingen / Tuttlingen, Landkreis / Freiburg, Bezirk / Baden-Württemberg / Deutschland
Garronit mit Analcim
Views (File:
1324894760
): 3175
Garronit mit Analcim
Größe: 3,44 mm, Fundort: Cornorotto, Fara Vicentino, Vicenza, Provinz, Venetien (Veneto), Region, Italien
Copyright: Matteo Chinellato; Contribution: Hg
Location: Italien/Venetien (Veneto), Region/Vicenza, Provinz/Fara Vicentino/Cornorotto
Mineral: Analcime, Garronite-Ca
Image: 1324894760
Rating: 9 (votes: 2)
License: Usage for Mineralienatlas project only
Garronit mit Analcim

Größe: 3,44 mm, Fundort: Cornorotto, Fara Vicentino, Vicenza, Provinz, Venetien (Veneto), Region, Italien
Copyright: Matteo Chinellato
Contribution: Hg 2011-12-26
Locality: Cornorotto / Fara Vicentino / Vicenza, Provinz / Venetien (Veneto), Region / Italien
Garronit
Views (File:
1218463214
): 1322
Garronit
Größe: 1 mm; Fundort: Fara Vicentino, Vicenza, Venetien (Veneto), Italien
Copyright: Matteo Chinellato; Contribution: Hg
Location: Italien/Venetien (Veneto), Region/Vicenza, Provinz/Fara Vicentino
Mineral: Garronite-Ca
Image: 1218463214
Rating: 8 (votes: 1)
License: Usage for Mineralienatlas project only
Garronit

Größe: 1 mm; Fundort: Fara Vicentino, Vicenza, Venetien (Veneto), Italien
Copyright: Matteo Chinellato
Contribution: Hg 2008-08-11
Locality: Fara Vicentino / Vicenza, Provinz / Venetien (Veneto), Region / Italien
Garronit
Views (File:
1218463433
): 1039
Garronit
Größe: 4,8 mm; Fundort: Fara Vicentino, Vicenza, Venetien (Veneto), Italien
Copyright: Matteo Chinellato; Contribution: Hg
Location: Italien/Venetien (Veneto), Region/Vicenza, Provinz/Fara Vicentino
Mineral: Garronite-Ca
Image: 1218463433
Rating: 8 (votes: 1)
License: Usage for Mineralienatlas project only
Garronit

Größe: 4,8 mm; Fundort: Fara Vicentino, Vicenza, Venetien (Veneto), Italien
Copyright: Matteo Chinellato
Contribution: Hg 2008-08-11
Locality: Fara Vicentino / Vicenza, Provinz / Venetien (Veneto), Region / Italien

You find additional specimen at the Geolitho Museum

Collectors Summary

Color farblos, weiß
Streak color weiß
Hardness (Mohs) 4
Solubility +++ Säuren
Crystal System tetragonal, I4m2, I41/a

Chemism

Chemical formula

NaCa2.5(Si10Al6)O32·13H2O

Chemical composition

Aluminium, Calcium, Natrium, Silicium, Sauerstoff, Wasserstoff

Unit weight: 1312.1112714 u; Number of atoms in the formula: 90.5

Info

Empirical formula:

NaCa2.5(Si10Al6)O32·13H2O

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Hydrogen

H

2.00

26

28.73

1.0079470

26.2066220
Oxygen

O

54.87

45

49.72

15.9994300

719.9743500
Sodium

Na

1.75

1

1.10

22.9897702

22.9897702
Aluminium

Al

12.34

6

6.63

26.9815382

161.8892292
Silicon

Si

21.40

10

11.05

28.0855300

280.8553000
Calcium

Ca

7.64

2.5

2.76

40.0784000

100.1960000

Analysis wt%

SiO2 : 43.21, Al2O3 : 24.20, CaO : 10.64, Na2O : 2.94, K2O : 0.54, H2O : 18.62 (Ref: Mineralogical Magazine 62)

Strunz 9th edition incl. updates

9.GC.05

9: Silikate (Germanate)
G: Gerüstsilikate (Tektosilikate) mit zeolithischem H2O; Familie der Zeolithe
C: Ketten doppelt verbundener vierer-Ringe
05:Gismondin-Gruppe

Lapis Classification

VIII/J.25-040

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

Classification by Hölzel

9.FK.270

9: SILICATES
F: Tektosilicates
K: Doubly connected 4-Ring Chains

IMA status

Anerkannt von der CNMNC

Mineral status

anerkanntes Mineral

IMA Classification

IMA Classification

 Zeolite group  ⇒ GIS zeolite structure group  ⇒ Garronite series

Optical Properties

Color

farblos, weiß

Streak color

weiß

Diaphaneity (Transparency)

transparent bis durchscheinend

max. Birefringence

0.002
Birefringence chart\! Garronite-Ca title=Birefringence chart Garronite-Ca

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

1.507

RI value β

1.508

RI value γ / ε

1.509

Ri mean

1.508

2V angle

Biaxial (+)- nd

Crystallography

Crystal System

tetragonal

Class (H-M)

42m, 4/m

Space Group number

119, 88

Space Group

I4m2, I41/a

Cell parameters a (Å)

9.880

Cell parameters b (Å)

-

Cell parameters c (Å)

9.876

Cell parameters a/b or c/a

1

Cell parameters c/b

-

Cell parameters α

90°

Cell parameters β

90.12

Cell parameters γ

90°

Z

1

Volume (ų)

964.04

X-Ray Powder Diffraction

7.15(80),
4.95(80),
4.12(100),
4.07(50),
3.22(50),
3.14(100),
2.66(100),
1.770(40)
XRD chart Garronite-Ca

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

VHN (Hardness Vickers)

190 (ungefähre Angabe abgeleitet aus der Mohshärte)

Density (g/cm³)

2.1 - 2.2 / Durchschnittlich = 2.15

2.26 ( ρ calc. Mineralienatlas )

Instability

+++ Säuren

(Co-)Type locality

(Co-)Type locality

UK/Nordirland/Antrim County/Garron Plateau/Glenariff Valley

Preface

Author (Name, Year)

Walker, 1962

References

Canadian Mineralogist 35 (1997), 1571

Garronite: change in nomenclature After the approval of the new mineral garronite-Na (IMA 2015-015, see above), the name ‘‘garronite’’ becomes a series name, and the mineral formerly referred to as garronite is renamed garronite-Ca. CNMNC Newsletter No. 26, August 2015, page 947; Mineralogical Magazine, 79, 941 - 947.

IMA group assignments

Other languages

German

Garronit-Ca

Spanish

Garronita-Ca

French

Garronite-Ca

English

Garronite-Ca

Russian

Гарронит-Ca

CNMNC symbol

Symbol

Grn-Ca

Locations with GPS information

IDs

GUSID (Global unique identifier short form) -ttKvoq5TUWHCQQZiXfL8g
GUID (Global unique identifier) BE4ADBFA-B98A-454D-8709-04198977CBF2
Database ID 1335