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Paranatisite

Pictures (1 Images total)

Paranatisit
Views (File:
1586001827
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Paranatisit
eingewachsene, stengelige, braune Kristalle von Paranatisit, Morro do Serrote, Poços de Caldas, Minas Gerais, Brasilien; BB ~ 4 mm, analysiert
Copyright: MinTreasure.com (Carsten Slotta); Contribution: openpit
Location: Brasilien/Südosten (Região Sudeste)/Sao Paulo/Registro/Morro do Serrote
Mineral: Paranatisite
Image: 1586001827
License: Usage for Mineralienatlas project only
Paranatisit

eingewachsene, stengelige, braune Kristalle von Paranatisit, Morro do Serrote, Poços de Caldas, Minas Gerais, Brasilien; BB 4 mm, analysiert

Copyright: MinTreasure.com (Carsten Slotta)
Contribution: openpit 2020-04-04
Locality: Morro do Serrote / Registro / Sao Paulo / Südosten (Região Sudeste) / Brasilien

Collectors Summary

Color gelb, orange braun, orange
Streak color weiß
Hardness (Mohs) 5
Cleavages keine
Fracture muschelig
Crystal System orthorhombisch, Pmc21

Chemism

Chem­ical formula

Na2(TiO)SiO4

Chem­ical com­po­si­tion

Natrium, Silicium, Titan, Sauerstoff

Unit weight: 201.9293204 u; Number of atoms in the formula: 9

Info

Empirical formula:

Na2(TiO)SiO4

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Oxygen

O

39.62

5

55.56

15.9994300

79.9971500

Sodium

Na

22.77

2

22.22

22.9897702

45.9795404

Silicon

Si

13.91

1

11.11

28.0855300

28.0855300

Titanium

Ti

23.70

1

11.11

47.8671000

47.8671000

Anal­y­sis wt%

Na2O : 28.04, FeO : 2.61, TiO2 : 35.70, SiO2 : 29.69, F : 1.00, H2O : 1.60 (Ref: Zapiski Vsesoyuznogo Mineralogicheskogo Obshchestva, 1904-1974 92)

Strunz 9th edi­tion incl. updates

9.AG.40

9: Silikate (Germanate)
A: Inselsilikate (Nesosilikate)
G: Insel(Neso)silikate mit zusätzlichem Anionen; Kationen in meist [6] und > [6] Koordination
40:Natisit-Gruppe

Lapis Clas­sifica­tion

VIII/B.13-005

VIII: SILIKATE
B: Inselsilikate mit tetraederfremden Anionen
13: Kationen mit Koordinationszahlen zwischen [8] und [12]

Clas­sifica­tion by Hölzel

9.AG.405

9: SILICATES
A: Nesosilicates
G: Nesosilicates with Cation: O
4: C small + large; Titanite-Group

Dana 8th edi­tion

52.04.04.02

52: Nesosilicates Nesosilicate Insular SiO4 Groups and O, OH, F, and H2O
04: Nesosilicates Nesosilicate Insular SiO4 Groups and O, OH, F, and H2O with cations in [6] and/or > [6] coordination
04: Natisite - Yftisite group

IMA sta­tus

Anerkannt von der CNMNC

Min­eral sta­tus

anerkanntes Mineral

Optical Properties

Color

gelb, orange braun, orange

Streak color

weiß

Diaphane­ity (Trans­parency)

transparent bis durchscheinend

max. Birefrin­gence

0.025

Birefringence chart\! Paranatisite title=Birefringence chart Paranatisite

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

1.740

RI value β

1.741

RI value γ / ε

1.765

Ri mean

1.749

2V angle

Biaxial (+) 20°

Crystallography

Crystal Sys­tem

orthorhombisch

Class (H-M)

mm2

Space Group number

26

Space Group

Pmc21

Cell param­e­ters a (Å)

9.181

Cell param­e­ters b (Å)

4.800

Cell param­e­ters c (Å)

9.811

Cell param­e­ters a/b or c/a

1.913

Cell param­e­ters c/b

2.044

Cell param­e­ters α

90°

Cell param­e­ters β

90°

Cell param­e­ters γ

90°

Z

4

Volumne (ų)

432.359

X-Ray Pow­der Diffrac­tion

2.748(100),
2.257(20),
2.028(20),
1.720(30),
1.680(30),
1.660(20),
1.475(30),
1.443(30)

XRD chart Paranatisite

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

Crystal Structure 3D

Open larger view

Physical Properties

Hard­ness (Mohs)

5

VHN (Hard­ness Vick­ers)

390 (ungefähre Angabe abgeleitet aus der Mohshärte)

Density (g/cm³)

3.12

3.102 ( ρ calc. Mineralienatlas )

Cleav­ages

keine

Frac­ture

muschelig

Tenac­ity

zerbrechlich

Preface

Author (Name, Year)

Khomyakov & Polezhaeva & Sokolova, 1992

References

Canadian Mineralogist 40 (2002), 947

Other languages

German

Paranatisit

Spanish

Paranatisita

English

Paranatisite

French

Paranatisite

Russian

Паранатисит

CNMNC (IMA)-Number

IMA 1990-016

CNMNC symbol

Symbol

Pnts

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

German pages

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

English pages

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

Russian pages

Webmineral.ru - search for: Паранатисит

Mineral Dealer

German pages

hausen - Mineralgroßhandel - search for: Paranatisit
Crystal-Treasure.com - search for: Paranatisit
Bosse - search for: Paranatisit
Edelsteine Neuburg - Gundolf Fischer - search for: Paranatisit
Geolitho marketplace, by and for collectors - search for: Paranatisit

Locations with GPS information