Zinc Mineral Data

Zinc Mineral Data +

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General Zinc Information

Chemical Formula:

Composition:

Molecular Weight = 65.39 gm

Zinc 100.00 % Zn

______

100.00 %

Empirical Formula:

Environment:

Oxidized sphalerite, as volcanic exhalations, and in platinum concentrates.

IMA Status:

Valid Species (Pre-IMA) Prehistoric

Locality:

Elsa mine, Keno Hill-Galena Hill area, Yukon Territory, Canada. Link to MinDat.org Location Data.

Name Origin:

From the German, "zink."

Synonym:

ICSD 64990

PDF 4-831

Zinc Image

Images:

Zinc

Comments: Dull light gray zinc grain.
Location: Kazakhstan. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Zinc Crystallography

Axial Ratios:

a:c = 1:1.856

Cell Dimensions:

a = 2.6591, c = 4.9353, Z = 2; V = 30.22 Den(Calc)= 7.19

Crystal System:

Hexagonal - Dihexagonal DipyramidalH-M Symbol (6/m 2/m 2/m) Space Group: P 6₃/mmc

$Help on X Ray Diffraction:$ X Ray Diffraction:

By Intensity(I/I_o): 2.091(1), 2.473(0.53), 2.308(0.4),

Crystal Structure:

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Wyckoff R W G , Crystal Structures , 1 (1963) p.7-83, Second edition. Interscience Publishers, New York, New York, Hexagonal closest packed, hcp, structure

Physical Properties of Zinc

Cleavage:

[0001] Perfect

Color:

Blue gray.

Density:

6.9 - 7.2, Average = 7.05

Diaphaniety:

Opaque

Fracture:

Brittle - Generally displayed by glasses and most non-metallic minerals.

Habit:

Irregular Grains - Occurs as splotchy, anhedral crystals forming inclusions in other minerals or rocks.

Habit:

Platy - Sheet forms (e.g. micas).

Hardness:

2 - Gypsum

Luster:

Metallic

Streak:

light gray

Calculated Properties of Zinc

Electron Density:

r_electron=6.60 gm/cc
note: r_Zinc=7.19 gm/cc.

Fermion Index

Fermion Index = 0.041
Boson Index = 0.959

Photoelectric:

PE_Zinc= 51.95 barns/electron
U=PE_Zinc x r_electron= 342.72 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Zinc is Not Radioactive

Zinc Classification

Dana Class:

1.1.5.1 (1)Native Elements

(1.1)with metallic elements other than the platinum group

(1.1.5)Dana Group

1.1.5.1 Zinc Zn P 6₃/mmc 6/m 2/m 2/m

1.1.5.2 Cadmium Cd P 6₃/mmc 6/m 2/m 2/m

Strunz Class:

I/A.04-10 I - Elements

I/A - Metallic and intermetallic compounds, Carbides, Nitrides, Phosphides and Silicides

I/A.04 - Zinc-Cadmium series

I/A.04-10 Zinc Zn P 6₃/mmc 6/m 2/m 2/m

I/A.04-15 Brass* Cu3Zn2 Unk Cubic

I/A.04-20 Zhanghengite (Cu,Zn,Fe,Al,Cr) I m3m 4/m 3 2/m

I/A.04-30 Danbaite CuZn2 Unk Cubic

I/A.04-40 Cadmium Cd P 6₃/mmc 6/m 2/m 2/m

Other Zinc Information

References:

NAME( AntBidBlaNic1) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990)

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Zinc

Zn
Dana No: 1.1.5.1 Strunz No: I/A.04-10
Locality:

Notes: