Mineralienatlas - Fossilienatlas

Chemical formula

Na₄MgV₁₀O₂₈·24 H₂O

Chemical composition

Magnesium, Natrium, Sauerstoff, Vanadium, Wasserstoff

Strunz 9th edition incl. updates

4.HG.10

4: Oxide, Hydroxide (Oxide, Hydroxide, V[5,6]-Vanadate, Arsenite, Antimonite, Bismutite, Sulfite, Selenite, Tellurite, Iodate)
H: V[5,6] Vanadate
G: Unklassifizierte Vanadium ~[V]-Oxide
10:Huemulit-Gruppe

Lapis Classification

IV/G.01-010

IV: OXIDE
G: Vanadiumoxide (Polyvanadate mit V4+/5+)
1: Gruppenvanadate

Classification by Hölzel

4.GA.610

4: OXIDES
G: Vanadin, Uranyl Oxides and Hydroxides
A: Vanadin Oxides and Hydroxides, VBronzes
6: Valency for V: 5 Hummerite-Group

Dana 8th edition

47.02.03.01

47: Vanadium Oxysalts
02: Vanadium Oxysalts (VmOn)

IMA status

Anerkannt von der CNMNC

Mineral status

anerkanntes Mineral

Color

gelborange

Streak color

gelb

max. Birefringence

0.063

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

1.679

RI value β

1.734

RI value γ / ε

1.742

Ri mean

1.718

2V angle

Biaxial (-) 28°~

Crystal System

triklin

Class (H-M)

1, 1

Space Group number

1, 2

Space Group

P1, P1

Cell parameters a (Å)

9.045

Cell parameters b (Å)

11.334

Cell parameters c (Å)

11.737

Cell parameters a/b or c/a

0.798

Cell parameters c/b

1.036

Cell parameters α

105.22

Cell parameters β

97.38

Cell parameters γ

100.78

Z

1

Volume (ų)

1120.351

X-Ray Powder Diffraction

10.59(90),
10.20(50),
9.12(60),
8.22(30),
7.62(100),
5.26(20),
3.054(30),
2.833(30)

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

Author (Name, Year)

Gordillo & Linares & Toubes & Winchell, 1966