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Jerrygibbsite (Jerrygibbsit)

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Jerrygibbsit
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Jerrygibbsit
hellrosafarbene Kristalle von Jerrygibbsit, Parker Shaft, Franklin Mine, Franklin, Sussex County, New Jersey, USA; BB ~ 1 mm, analysiert
Copyright: MinTreasure.com (Carsten Slotta); Contribution: openpit
Location: USA/New Jersey/Sussex Co./Franklin Mining District/Franklin/Franklin Mine
Mineral: Jerrygibbsite
Image: 1592423264
License: Usage for Mineralienatlas project only
Jerrygibbsit

hellrosafarbene Kristalle von Jerrygibbsit, Parker Shaft, Franklin Mine, Franklin, Sussex County, New Jersey, USA; BB 1 mm, analysiert
Copyright: MinTreasure.com (Carsten Slotta)
Contribution: openpit 2020-06-17
Locality: Franklin Mine / Franklin / Franklin Mining District / Sussex Co. / New Jersey / USA

Collectors Summary

Color violett rosa
Streak color hellrosa
Hardness (Mohs) 5.5
Solubility +++ HCl
Crystal System orthorhombisch, Pbn21

Chemism

Chemical formula

Mn9(SiO4)4(OH)2

Chemical composition

Mangan, Silicium, Sauerstoff, Wasserstoff

Unit weight: 896.7902031 u; Number of atoms in the formula: 33

Info

Empirical formula:

Mn9(SiO4)4(OH)2

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Hydrogen

H

0.22

2

6.06

1.0079470

2.0158940
Oxygen

O

32.11

18

54.55

15.9994300

287.9897400
Silicon

Si

12.53

4

12.12

28.0855300

112.3421200
Manganese

Mn

55.13

9

27.27

54.9380499

494.4424491

Analysis wt%

SiO2 : 27.10, MgO : 1.40, CaO : 0.40, MnO : 64.10, ZnO : 3.90, H2O : 2.13 (Ref: American Mineralogist 84)

Strunz 9th edition incl. updates

9.AF.70

9: Silikate (Germanate)
A: Inselsilikate (Nesosilikate)
F: Insel(Neso)silikate mit zusätzlichem Anionen; Kationen in [4], [5] und/oder nur [6] Koordination
70:Jerrygibbsit-Gruppe

Lapis Classification

VIII/B.04-100

VIII: SILIKATE
B: Inselsilikate mit tetraederfremden Anionen
4: Kationen in tetraedrischer oder oktaedrischer Koordination [4/6]; Humit-Gruppe

Classification by Hölzel

9.AI.270

9: SILICATES
A: Nesosilicates
I: Nesosilicates with OH
2: Norbergite-Group

Dana 8th edition

52.03.02d.02

52: Nesosilicates Nesosilicate Insular SiO4 Groups and O, OH, F, and H2O
03: Nesosilicates Nesosilicate Insular SiO4 Groups and O, OH, F, and H2O with cations in [6] coordination only
02d: Humite group (Clinohumite series)

IMA status

Anerkannt von der CNMNC

Mineral status

anerkanntes Mineral

Optical Properties

Color

violett rosa

Streak color

hellrosa

Diaphaneity (Transparency)

transparent bis durchscheinend

max. Birefringence

0.017
Birefringence chart\! Jerrygibbsite title=Birefringence chart Jerrygibbsite

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

1.772

RI value β

1.783

RI value γ / ε

1.789

Ri mean

1.781

2V angle

Biaxial (-) 72°

Optical Data Luminescence

Luminescence

keine Fluoreszenz bekannt

Crystallography

Crystal System

orthorhombisch

Class (H-M)

mm2

Space Group number

33

Space Group

Pbn21

Cell parameters a (Å)

4.875

Cell parameters b (Å)

10.709

Cell parameters c (Å)

28.18

Cell parameters a/b or c/a

0.455

Cell parameters c/b

2.631

Cell parameters α

90°

Cell parameters β

90°

Cell parameters γ

90°

Z

4

Volumne (ų)

1471.176

X-Ray Powder Diffraction

2.869(80),
2.752(50),
2.702(50),
2.661(30),
2.557(100),
2.362(40),
1.806(100),
1.550(30)
XRD chart Jerrygibbsite

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

Crystal Structure 3D

Open larger view

Physical Properties

Hardness (Mohs)

5.5

VHN (Hardness Vickers)

530 (ungefähre Angabe abgeleitet aus der Mohshärte)

Density (g/cm³)

4

4.049 ( ρ calc. Mineralienatlas )

Instability

+++ HCl

(Co-)Type locality

(Co-)Type locality

USA/New Jersey/Sussex Co./Franklin Mining District/Franklin/Franklin Mine

Preface

Author (Name, Year)

Dunn & Peacor & Simmons & Essene, 1984

References

American Mineralogist 69 (1984), 546

Other languages

German

Jerrygibbsit

Spanish

Jerrygibbsita

French

Jerrygibbsite

English

Jerrygibbsite

Russian

Джерриджиббсит

CNMNC (IMA)-Number

IMA 1981-059

CNMNC symbol

Symbol

Jgb

Locations with GPS information