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Pinnoite

Pictures (3 Images total)

Pinnoit
Views (File:
1266752920
): 1581
Pinnoit
Bildbreite: 15 mm; Fundort: Inder See, Atyrau, Oblast Atyrau, Kasachstan
Copyright: slugslayer; Contribution: slugslayer
Collection: giantcrystal
Location: Kasachstan/Atyrau oblysy/Atyrau (Gur'yev)/Inder B-Lagerstätte und Salzdom
Mineral: Pinnoite
Image: 1266752920
Rating: 7 (votes: 1)
License: Usage for Mineralienatlas project only
Pinnoit

Bildbreite: 15 mm; Fundort: Inder See, Atyrau, Oblast Atyrau, Kasachstan

Collection: giantcrystal
Copyright: slugslayer
Contribution: slugslayer 2010-02-21
Locality: Inder B-Lagerstätte und Salzdom / Atyrau (Gur'yev) / Atyrau oblysy / Kasachstan
Pinnoit
Views (File:
1261165554
): 1163
Pinnoit
Größe: 80x60x40 mm; Fundort: Inder See, Atyrau, Atyrau oblysy, Kasachstan
Copyright: Rob Lavinsky; Contribution: slugslayer
Location: Kasachstan/Atyrau oblysy/Atyrau (Gur'yev)/Inder B-Lagerstätte und Salzdom
Mineral: Pinnoite
Image: 1261165554
Rating: 4.33 (votes: 3)
License: Usage for Mineralienatlas project only
Pinnoit

Größe: 80x60x40 mm; Fundort: Inder See, Atyrau, Atyrau oblysy, Kasachstan

Copyright: Rob Lavinsky
Contribution: slugslayer 2009-12-18
Locality: Inder B-Lagerstätte und Salzdom / Atyrau (Gur'yev) / Atyrau oblysy / Kasachstan
Farblose bis weiße, bis 2 mm große Kristalle von Pinnoit
Views (File:
1074450959
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Farblose bis weiße, bis 2 mm große Kristalle von Pinnoit
Stufengröße: 3 x 3,3 cm;Fundort: Inder See, Atyrau, Atyrau oblysy, Kasachstan
Copyright: McSchuerf; Contribution: Mineralienatlas
Location: Kasachstan/Atyrau oblysy/Atyrau (Gur'yev)/Inder B-Lagerstätte und Salzdom
Mineral: Pinnoite
Image: 1074450959
Rating: 4 (votes: 1)
License: Usage for Mineralienatlas project only
Farblose bis weiße, bis 2 mm große Kristalle von Pinnoit

Stufengröße: 3 x 3,3 cm;Fundort: Inder See, Atyrau, Atyrau oblysy, Kasachstan

Copyright: McSchuerf
Contribution: Mineralienatlas 2004-01-18
Locality: Inder B-Lagerstätte und Salzdom / Atyrau (Gur'yev) / Atyrau oblysy / Kasachstan

Collectors Summary

Color farblos, gelblichgrün
Streak color weiß
Lustre Glasglanz
Hardness (Mohs) 3.5
Solubility +++ Säuren, kochendes H2O
Crystal System tetragonal, P42

Chemism

Chemical formula

MgB2O4·3H2O

Chemical composition

Magnesium, Bor, Sauerstoff, Wasserstoff

Unit weight: 163.972152 u; Number of atoms in the formula: 16

Info

Empirical formula:

MgB2O4·3H2O

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Hydrogen

H

3.69

6

37.50

1.0079470

6.0476820

Boron

B

13.19

2

12.50

10.8117000

21.6234000

Oxygen

O

68.30

7

43.75

15.9994300

111.9960100

Magnesium

Mg

14.82

1

6.25

24.3050600

24.3050600

Analysis wt%

Ø MgO : 24.45, B2O3 : 42.50, H2O : 32.85 (Ref: Dana, 7th ed. 2)

Strunz 9th edition incl. updates

6.BB.05

6: Borate
B: Diborate
B: Insel (Neso)-Diborate mit Doppelt-Tetraedern B2(O,OH)6; 2(2T)
05:Pinnoit-Gruppe

Lapis Classification

V/H.04-010

V: NITRATE, CARBONATE UND BORATE
H: Gruppenborate
4: Planare Gruppen [B2O5] 4- bis [B2O7] 8-

Classification by Hölzel

6.BB.100

6: Borates
B: Diborates
B: Nesodiborates with double tetrahedra B2O(OH)6 - 2(2T)
1: Pinnoite-Group

Dana 8th edition

25.02.03.01

25: Anhydrous Borates Containing Hydroxyl or Halogen
02: Anhydrous Borates Containing Hydroxyl or Halogen

IMA status

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

Mineral status

anerkanntes Mineral

Optical Properties

Color

farblos, gelblichgrün

Streak color

weiß

Lustre

Glasglanz

max. Birefringence

0.010

Birefringence chart\! Pinnoite title=Birefringence chart Pinnoite

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

1.565

RI value γ / ε

1.575

Ri mean

1.568

2V angle

Uniaxial (+)

Optical Data Luminescence

Color LW-UV (365nm)

 

weiß

Color SW-UV (254nm)

 

weiß

LW-UV Other Colors

 

bläulich weiß

SW-UV Other Colors

 

bläulich weiß

Color SW-UV Afterglow (254nm)

 

weiß

Crystallography

Crystal System

tetragonal

Class (H-M)

4

Space Group number

77

Space Group

P42

Cell parameters a (Å)

7.617

Cell parameters b (Å)

-

Cell parameters c (Å)

8.190

Cell parameters a/b or c/a

1.075

Cell parameters c/b

-

Cell parameters α

90°

Cell parameters β

90°

Cell parameters γ

90°

Z

4

Volumne (ų)

475.173

X-Ray Powder Diffraction

5.39(100),
3.61(40),
3.14(40),
2.309(70),
2.252(30),
2.045(50),
1.905(30),
1.570(20)

XRD chart Pinnoite

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)

3.5

VHN (Hardness Vickers)

130 (ungefähre Angabe abgeleitet aus der Mohshärte)

Density (g/cm³)

2.29

2.292 ( ρ calc. Mineralienatlas )

Radioactivity

keine

Instability

+++ Säuren, kochendes H2O

Preface

Author (Name, Year)

Staute, 1884

References

Handbook of Mineralogy (Anthony et al.), 5 (2003), 550

Other languages

German

Pinnoit

French

Pinnoite

English

Pinnoite

Spanish

Pinnoíta

Russian

Пинноит

Simplified Chinese

柱硼镁石

CNMNC symbol

Symbol

Pno