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Paraguanajuatite

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Paraguanajuatit
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Paraguanajuatit
Bildbreite: ca. 2 cm, Fundort: Industria Mine, Sierra de Santa Rosa, Guanajuato, Mexiko
Copyright: Dan Weinrich; Contribution: thdun5
Location: Mexiko/Guanajuato/Guanajuato, Municipio/Sierra de Santa Rosa/Industria Mine
Mineral: Paraguanajuatite
Image: 1271690258
Rating: 6 (votes: 1)
License: Usage for Mineralienatlas project only
Paraguanajuatit

Bildbreite: ca. 2 cm, Fundort: Industria Mine, Sierra de Santa Rosa, Guanajuato, Mexiko

Copyright: Dan Weinrich
Contribution: thdun5 2010-04-19
Locality: Industria Mine / Sierra de Santa Rosa / Guanajuato, Municipio / Guanajuato / Mexiko

Collectors Summary

Color gelblichweiß, grau-met.
Streak color grau-met.
Hardness (Mohs) 2.50 - 3.00
Solubility ++ warmes Königswasser (a)
Crystal System trigonal, R3m

Chemism

Chemical formula

Bi2(Se,S)3

Chemical composition

Bismut, Selen, Schwefel

Unit weight: 619.676639 u; Number of atoms in the formula: 5

Info

Empirical formula:

Bi2(Se0.75S0.25)3

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Sulfur

S

3.88

0.75

15.00

32.0655000

24.0491250

Selenium

Se

28.67

2.25

45.00

78.9630000

177.6667500

Bismuth

Bi

67.45

2

40.00

208.9803820

417.9607640

Analysis wt%

Bi : 63.38, Se : 27.53, Te : 8.31, S : 1.44 (Ref: Min.J.Jap.88)

Strunz 9th edition incl. updates

2.DC.05

2: Sulfide und Sulfosalze (Sulfide, Selenide, Telluride, Arsenide, Antimonide, Bismutide, Sulfarsenite, Sulfantimonite, Sulfbismuthite)
D: Metallsulfide mit M:S = 3:4 und 2:3
C: M:S variabel
05:Tetradymit-Gruppe

Lapis Classification

II/D.09-030

II: SULFIDE UND SULFOSALZE (Sulfide, Selenide, Telluride, Arsenide, Antimonide, Bismutide)
D: Sulfide mit Metall : S,Se,Te < 1:1
9: Tetradymit-Gruppe

Classification by Hölzel

2.DB.150

2: SULFIDES
D: With Me/S <1/1 and >1/2
B: Me/S=2/3
1: Stibnite-Group

Dana 8th edition

02.11.07.04

02: Sulfide Minerals
11: Sulfides - Including Selenides and Tellurides where Am Bn Xp, with (m+n):p=2:3
07: Tetradymite Group (Trigonal: R-3m)

IMA status

Erstbeschreibung vor CNMNC-Gründung (1959), als Mineral meist anerkannt

Mineral status

anerkanntes Mineral

Optical Properties

Color

gelblichweiß, grau-met.

Streak color

grau-met.

Crystallography

Crystal System

trigonal

Class (H-M)

3m

Space Group number

166

Space Group

R3m

Cell parameters a (Å)

4.133

Cell parameters b (Å)

-

Cell parameters c (Å)

28.62

Cell parameters a/b or c/a

6.925

Cell parameters c/b

-

Z

3

Volume (ų)

423.381

X-Ray Powder Diffraction

9.75(10),
4.83(30),
3.58(10),
3.054(100),
2.250(20),
2.083(20),
1.718(10)

XRD chart Paraguanajuatite

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

Crystal Structure 3D

Open larger view

Physical Properties

Hardness (Mohs)

2.50 - 3.00

VHN (Hardness Vickers)

39 (10g)

Density (g/cm³)

7.704 (berechnet)

7.291 ( ρ calc. Mineralienatlas )

Instability

++ warmes Königswasser (a)

Preface

Author (Name, Year)

Ramdohr, 1948

Safety Instructions

Industrial chemicals are often present in powder form and therefore often contain much higher dangers than natural, crystalline substances. These hazard statements refer to the classification of industrially used chemical compounds that may also occur in this natural mineral. The hazard classification makes no claim to completeness.




Safety classes: H301: Giftig bei Verschlucken., H331: Giftig bei Einatmen., H373: Kann die Organe schädigen bei längerer oder wiederholter Exposition., H410: Sehr giftig für Wasserorganismen mit langfristiger Wirkung., P261: Einatmen von Staub / Rauch / Gas / Nebel / Dampf / Aerosol vermeiden., P273: Freisetzung in die Umwelt vermeiden., P301+P310: Bei Verschlucken: Sofort Giftinformationszentrum, Arzt oder … anrufen., P311: Giftinformationszentrum, Arzt oder … anrufen., P501: Inhalt / Behälter … zuführen.

References

Handbook of Mineralogy (Anthony et al.), 1 (1990), 383

Other languages

German

Paraguanajuatit

Spanish

Paraguanajuatita

English

Paraguanajuatite

French

Paraguanajuatite

Russian

Парагуанахуатит

CNMNC symbol

Symbol

Pgj

Locations with GPS information

IDs

GUSID (Global unique identifier short form) QVoYB3kwwkW8R4QfGWCfaw
GUID (Global unique identifier) 07185A41-3079-45C2-BC47-841F19609F6B
Database ID 2918