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Parascandolaite

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Parascandolait
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Parascandolait
farblose Parascandolait, 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: Parascandolaite
Image: 1576419632
License: Usage for Mineralienatlas project only
Parascandolait

farblose Parascandolait, Monte Somma, Vesuv, Italien; BB < 1 mm, analysiert
Copyright: MinTreasure.com (Carsten Slotta)
Contribution: openpit 2019-12-15
Locality: Monte Somma / Somma-Vesuv-Komplex / Neapel, Provinz / Kampanien (Campania), Region / Italien

Collectors Summary

Color farblos bis weiß
Lustre Glasglanz
Crystal System kubisch, Pm3m
Morphology würfelige Kristalle bis 0,5 mm

Additional information / Summary

identisch mit UM1960-02-F:KMg ??

Chemism

Chemical formula

KMgF3

Additional chem. information

verwandt mit Neighborit

Chemical composition

Magnesium, Fluor, Kalium

Unit weight: 120.39857975 u; Number of atoms in the formula: 5

Info

Empirical formula:

KMgF3

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Fluorine

F

47.34

3

60.00

18.9984033

56.9952098
Magnesium

Mg

20.19

1

20.00

24.3050600

24.3050600
Potassium

K

32.47

1

20.00

39.0983100

39.0983100

Strunz 9th edition incl. updates

3.AA.

3: Halide (Fluoride, Chloride, Bromide, Iodide)
A: Einfache Halogenide ohne H2O
A: M:X = 1:1 und 2:3

IMA status

anerkannt - CNMNC Newsletter No. 18, Dezember 2013

Mineral status

anerkanntes Mineral

IMA Classification

IMA Classification

 Perowskite group
Perovskite supergroup  ⇒ Stoichiometric perovskites  ⇒ Neighborite subgroup

Optical Properties

Color

farblos bis weiß

Lustre

Glasglanz

Crystallography

Crystal System

kubisch

Class (H-M)

m3m

Space Group number

221

Space Group

Pm3m

Cell parameters a (Å)

4.0032

Cell parameters b (Å)

-

Cell parameters c (Å)

-

Cell parameters a/b or c/a

1

Cell parameters c/b

-

Cell parameters α

90°

Cell parameters β

90°

Cell parameters γ

90°

Z

1

Volume (ų)

64.154

Crystal structure

Perovskit-Gruppe; Struktur bestimmt

X-Ray Powder Diffraction

2.831(83), 2.311(78), 2.001(100), 1.633(35), 1.415(56), 1.267(16), 1.206(22)
XRD chart Parascandolaite

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

Morphology

würfelige Kristalle bis 0,5 mm

Physical Properties

Density (g/cm³)

3.11 (gemessen) 3.123 (berechnet)

3.116 ( ρ calc. Mineralienatlas )

(Co-)Type locality

(Co-)Type locality

Italien/Kampanien (Campania), Region/Neapel, Provinz/Somma-Vesuv-Komplex/Vesuv/Fumarole B5

Type material

Dipartimento di Chimica, University of Milan, Milan, Italien

Collection number of type material

2013-04

Paragenesis of type material

Opal, Cerussit, Mimetesit, Phönikochroit, Coulsellit

Preface

Name from

Antonio Parascandola (1902–1977), italienischer Mineraloge

Author (Name, Year)

Italo Campostrini, Francesco Demartin, Carlo Castellano und Massimo Russo (2014)

References

Campostrini, I., Demartin, F., Castellano, C. und Russo, M. (2013) Parascandolaite, IMA 2013-092. CNMNC Newsletter No. 18, December 2013, page 3256; Mineralogical Magazine, 77, 3249-3258.

Demartin, F., Campostrini, I., Castellano, C., Russo, M.: Parascandolaite, KMgF3, a new perovskite-type fluoride from Vesuvius. Physics and Chemistry of Minerals Vol. 41 (2014) S. 403–407.

Massimo Russo: Il ritrovamento della parascandolaite nelle fumarole del Vesuvio. In: Daniele Respino (2022) MINERALI d’ITALIA. Un viaggio entusiasmante in 350 delle più interessanti località mineralogiche italiane; Turin. S. 354-355.

IMA group assignments

Other languages

German

Parascandolait

English

Parascandolaite

CNMNC (IMA)-Number

IMA 2013-092

CNMNC symbol

Symbol

Psd

IDs

GUSID (Global unique identifier short form) 2FMJginh3EuR-DmSotU8ew
GUID (Global unique identifier) 820953D8-E129-4BDC-91F8-3992A2D53C7B
Database ID 7711