https://www.mineralbox.biz
https://www.mineraliengrosshandel.com
https://www.edelsteine-neuburg.de
https://www.mineral-bosse.de
'._('einklappen').'
 

Holdenite

Pictures (1 Images total)

Chlorophönizit mit Holdenit
Views (Image: 1592657405): 227
Chlorophönizit mit Holdenit

feinnadeliger Chlorophönizit mit pinken Massen von Holdenit, Franklin Mine, Franklin, Sussex County, New Jersey, USA; BB unb.

Copyright: Joy Desor
Contribution: openpit 2020-06-20
Locality: Franklin Mine / Franklin / Franklin Mining District / Sussex Co. / New Jersey / USA

Collectors Summary

Color gelblich rot, dunkelrot, rosa, orange
Hardness (Mohs) 4
Crystal System orthorhombisch, Abma

Chemism

Chem­ical formula

(Mn,Mg)6Zn3(AsO4)2(SiO4)(OH)8

Chem­ical com­po­si­tion

Arsen, Magnesium, Mangan, Silicium, Zink, Sauerstoff, Wasserstoff

Unit weight: 985.88792455 u; Number of atoms in the formula: 40

Info

Empirical formula:

(Mn0.75Mg0.25)6Zn3(AsO4)2(SiO4)(OH)8

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Hydrogen

H

0.82

8

20.00

1.0079470

8.0635760

Oxygen

O

32.46

20

50.00

15.9994300

319.9886000

Magnesium

Mg

3.70

1.5

3.75

24.3050600

36.4575900

Silicon

Si

2.85

1

2.50

28.0855300

28.0855300

Manganese

Mn

25.08

4.5

11.25

54.9380499

247.2212246

Zinc

Zn

19.90

3

7.50

65.4094000

196.2282000

Arsenic

As

15.20

2

5.00

74.9216020

149.8432040

Anal­y­sis wt%

MnO : 38.10, ZnO : 24.06, MgO : 2.18, SiO2 : 5.92, As2O5 : 22.65, H2O : 7.09 (Ref: American Mineralogist 77)

Strunz 9th edi­tion incl. updates

8.BE.55

8: Phosphate, Arsenate, Vanadate
B: Phosphate, etc., mit weitere Anionen, ohne H2O
E: Mit ausschließlich mittelgroßen [Kationen] (OH, etc.):RO4 > 2:1
55:Holdenit-Gruppe

Lapis Clas­sifica­tion

VIII/B.10-010

VIII: SILIKATE
B: Inselsilikate mit tetraederfremden Anionen

Clas­sifica­tion by Hölzel

8.BG.250

8: PHOSPHATES ARSENATES VANADATES
B: Phosphates (+Anions -Water)
G: Phosphates, C medium, without OH
2: With other complex Anions

Dana 8th edi­tion

43.04.07.01

43: Compound Phosphates, etc.
04: Compound Phosphates, etc. (Anhydrous Compound Anions With Hydroxyl or Halogen)

IMA sta­tus

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

Min­eral sta­tus

anerkanntes Mineral

Optical Properties

Color

gelblich rot, dunkelrot, rosa, orange

Diaphane­ity (Trans­parency)

durchscheinend

max. Birefrin­gence

0.016

Birefringence chart\! Holdenite title=Birefringence chart Holdenite

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

1.769

RI value β

1.770

RI value γ / ε

1.785

Ri mean

1.775

2V angle

Biaxial (+) 30°

Optical Data Luminescence

Lumi­nes­cence

keine Fluoreszenz bekannt

After­glow (Per­sistant Lumi­nes­cence)

keine Daten

Crystallography

Crystal Sys­tem

orthorhombisch

Class (H-M)

mmm

Space Group number

64

Space Group

Abma

Cell param­e­ters a (Å)

11.99

Cell param­e­ters b (Å)

31.46

Cell param­e­ters c (Å)

8.697

Cell param­e­ters a/b or c/a

0.381

Cell param­e­ters c/b

0.276

Cell param­e­ters α

90°

Cell param­e­ters β

90°

Cell param­e­ters γ

90°

Z

8

Volumne (ų)

3280.555

X-Ray Pow­der Diffrac­tion

5.740(50),
3.582(80),
3.406(60),
2.838(100),
2.789(50),
2.583(80),
2.464(70),
1.531(80)

XRD chart Holdenite

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)

4

VHN (Hard­ness Vick­ers)

190 (ungefähre Angabe abgeleitet aus der Mohshärte)

Density (g/cm³)

4.11

3.992 ( ρ calc. Mineralienatlas )

Preface

Author (Name, Year)

Palache, 1921

References

Handbook of Mineralogy (Anthony et al.), 2 (1995), 344

Other languages

German

Holdenit

Spanish

Holdenita

French

Holdenite

English

Holdenite

Russian

Холденит

CNMNC symbol

Symbol

Hde

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

German pages

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

English pages

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

Russian pages

Webmineral.ru - search for: Холденит

Mineral Dealer

German pages

hausen - Mineralgroßhandel - search for: Holdenit
Crystal-Treasure.com - search for: Holdenit
Bosse - search for: Holdenit
Edelsteine Neuburg - Gundolf Fischer - search for: Holdenit

Locations with GPS information