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Balliranoite

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Balliranoit
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Balliranoit
farbloses Spaltstück von Balliranoit, Monte Somma, Vesuv, Italien; BB ~ 1 mm, analysiert
Copyright: MinTreasure.com (Carsten Slotta); Contribution: openpit
Location: Italien/Kampanien (Campania), Region/Neapel, Provinz/Somma-Vesuv-Komplex/Monte Somma
Mineral: Balliranoite
Image: 1579426813
License: Usage for Mineralienatlas project only
Balliranoit

farbloses Spaltstück von Balliranoit, Monte Somma, Vesuv, Italien; BB 1 mm, analysiert

Copyright: MinTreasure.com (Carsten Slotta)
Contribution: openpit 2020-01-19
Locality: Monte Somma / Somma-Vesuv-Komplex / Neapel, Provinz / Kampanien (Campania), Region / Italien

Collectors Summary

Color farblos
Streak color weiß
Hardness (Mohs) 5
Cleavages vollkommen (10-10)
Fracture uneben quer zur Spaltrichtung
Crystal System hexagonal, P63
Morphology in Hohlräumen Kristalle bis 1x1x2 mm, eingewachsen im Gestein als Körner bis 1 cm Größe

Chemism

Chemical formula

(Na,K)6Ca2(Si6Al6O24)Cl2(CO3)

Additional chem. information

Cancrinit-Gruppe

Chemical composition

Aluminium, Calcium, Chlor, Natrium, Silicium, Kalium, Kohlenstoff, Sauerstoff

Unit weight: 1087.5624301 u; Number of atoms in the formula: 50

Info

Empirical formula:

(Na0.75K0.25)6Ca2(Si6Al6O24)Cl2(CO3)

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Carbon

C

1.10

1

2.00

12.0107800

12.0107800

Oxygen

O

39.72

27

54.00

15.9994300

431.9846100

Sodium

Na

9.51

4.5

9.00

22.9897702

103.4539659

Aluminium

Al

14.89

6

12.00

26.9815382

161.8892292

Silicon

Si

15.49

6

12.00

28.0855300

168.5131800

Chlorine

Cl

6.52

2

4.00

35.4532000

70.9064000

Potassium

K

5.39

1.5

3.00

39.0983100

58.6474650

Calcium

Ca

7.37

2

4.00

40.0784000

80.1568000

Analysis wt%

SO3 : 1.96, SiO2 : 32.38, CO2 : 3.24, Al2O3 : 27.28, CaO : 12.70, Na2O : 13.05, K2O : 3.08, Cl : 7.43, H2O : 0.19 (Ref: European Journal of Mineralogy 2010)

Strunz 9th edition incl. updates

9.FB.05

9: Silikate (Germanate)
F: Gerüstsilikate (Tektosilikate) ohne zeolithisches H2O
B: Gerüstsilikate (Tektosilicates) mit weiteren [Anionen]
05:Cancrinit-Gruppe

Lapis Classification

VIII/J.09-028

VIII: SILIKATE
J: Gerüstsilikate (mit Zeolithen)
9: Mit tetraederfremden Anionen; Cancrinit-Gruppe

Classification by Hölzel

9.FE.105

9: SILICATES
F: Tektosilicates
E: Hexagonal or trigonal with other Anions
1: Cancrinite-Group - hexagonal, axis for a~~12A and c~~5A

IMA status

Anerkannt, Beschreibung publiziert

Mineral status

anerkanntes Mineral

IMA Classification

IMA Classification

Cancrinit–Sodalit supergroup  ⇒ Cancrinite Group  ⇒ Davyne Subgroup

Optical Properties

Color

farblos

Streak color

weiß

Diaphaneity (Transparency)

transparent

max. Birefringence

0.002

Birefringence chart\! Balliranoite title=Birefringence chart Balliranoite

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

1.523

RI value γ / ε

1.525

Ri mean

1.524

2V angle

Uniaxial (+)

Crystallography

Crystal System

hexagonal

Class (H-M)

6

Space Group number

173

Space Group

P63

Cell parameters a (Å)

12.695

Cell parameters b (Å)

-

Cell parameters c (Å)

5.325

Cell parameters a/b or c/a

0.419

Cell parameters c/b

-

Cell parameters α

90°

Cell parameters β

90°

Cell parameters γ

120°

Z

1

Volume (ų)

743.217

Crystal structure

Struktur bestimmt

X-Ray Powder Diffraction

4.797(100), 3.669(57), 3.281(73), 2.754(16), 2.662(58), 2.648(13), 2.446(31), 2.120(18)

XRD chart Balliranoite

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

Morphology

in Hohlräumen Kristalle bis 1x1x2 mm, eingewachsen im Gestein als Körner bis 1 cm Größe

Crystals 3D

Open larger view

Crystal Structure 3D

Open larger view

Physical Properties

Hardness (Mohs)

5

VHN (Hardness Vickers)

390 (ungefähre Angabe abgeleitet aus der Mohshärte)

Density (g/cm³)

2.48 (gemessen) 2.486 (berechnet)

2.43 ( ρ calc. Mineralienatlas )

Cleavages

vollkommen (10-10)

Fracture

uneben quer zur Spaltrichtung

Tenacity

spröde

Chemical Properties and Tests

IR-Spektrum in der Erstbeschreibung enthalten

(Co-)Type locality

(Co-)Type locality

Italien/Kampanien (Campania), Region/Neapel, Provinz/Somma-Vesuv-Komplex/Monte Somma

Type material

Fersman Museum für Mineralogie der Russischen Akademie der Wissenschaften, Moskau

Collection number of type material

3756/1

Preface

Associations

Orthoklas, Phlogopit, Klinohumit, Calcit, Diopsid, Pargasit, Haüyn, Apatit

Name from

Paolo Ballirano, Prof. für Kristallographie, Dipartimento di Scienze della Terra della Università di Roma "La Sapienza"

Author (Name, Year)

Chukanov, N.V. et al., 2010

References

Nikita V. Chukanov, Natalia V. Zubkova, Igor V. Pekov, Lyudmila V. Olysych, Elena Bonaccorsi, Dmitry Y. Pushcharovsky: Balliranoite, (Na,K)6Ca2(Si6Al6O24)Cl2(CO3), a new cancrinite-group mineral from Monte Somma – Vesuvio volcanic complex, Italy. European Journal of Mineralogy 22 (2010) S.113-119.

Nikita V. Chukanov, Anatoly N. Sapozhnikov, Roman Yu. Shendrik, Natalia V. Zubkova, Marina F. Vigasina, Nadezhda V. Potekhina, Dmitry A. Ksenofontov, Igor V. Pekov: Crystal Chemistry, Thermal and Radiation-Induced Conversions and Indicatory Significance of S-Bearing Groups in Balliranoite. Minerals Vol. 13, Nr. 6 (2023) Art-Nr. 822. Open Access; DOI: 10.3390/min13060822

IMA group assignments

Other languages

German

Balliranoit

Spanish

Balliranoita

English

Balliranoite

Russian

Баллираноит

CNMNC (IMA)-Number

IMA 2008-065

CNMNC symbol

Symbol

Blr

Locations with GPS information

IDs

GUSID (Global unique identifier short form) r7FhCHwnWEumuRIb56Ejvw
GUID (Global unique identifier) 0861B1AF-277C-4B58-A6B9-121BE7A123BF
Database ID 5151