Zincite Mineral Data

Zincite Mineral Data +

General Zincite Information

Chemical Formula:

(Zn,Mn)O

Composition:

Molecular Weight = 80.34 gm

Manganese 6.84 % Mn 8.83 % MnO

Zinc 73.25 % Zn 91.17 % ZnO

Oxygen 19.91 % O

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Empirical Formula:

Zn_0.9Mn²⁺_0.1O

Environment:

Metamorphosed weathered ore deposit.

IMA Status:

Valid Species (Pre-IMA) 1845

Locality:

Major zinc ore at Sterling Hill and Franklin, New Jersey. Link to MinDat.org Location Data.

Name Origin:

Named after its composition containing zinc (From the German, "zink")

Synonym:

ICSD 31052

PDF 36-1451

Red Oxide of Zinc

Zincite Image

Images:

Zincite

Comments: Orange Zincite hexagonal pyramid.
Location: Franklin, Sussex County, New Jersey, USA. Scale: Not Given.
© Lou Perloff / Photo Atlas of Minerals

Images:

Zincite Glaucochroite Willemite

Comments: Pinkish gray crystalline glaucochroite intermixed with pale green willemite, with dark red zincite and white calcite.
Location: Franklin, Sussex County, New Jersey, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Zincite Crystallography

Axial Ratios:

a:c = 1:1.59654

Cell Dimensions:

a = 3.242, c = 5.176, Z = 2; V = 47.11 Den(Calc)= 5.66

Crystal System:

Hexagonal - Dihexagonal PyramidalH-M Symbol (6mm) Space Group: P 6₃mc

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

By Intensity(I/I_o): 2.476(1), 2.816(0.71), 2.602(0.56),

Forms:

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Forms: [ 1 1 1] [ 1 1 0] [ 0 0 1]

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Crystal Structure:

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Kihara K , Donnay G , The Canadian Mineralogist , 23 (1985) p.647-654, Anharmonic thermal vibrations in ZnO, Model: 2-c, at T = 293 K

View Additional jPOWD Structure files for Zincite
[1] [2] [3] [4]

Physical Properties of Zincite

Cleavage:

[0001] Perfect

Color:

Yellow, Dark yellow, Dark red, Orange.

Density:

5.43 - 5.7, Average = 5.56

Diaphaniety:

Translucent to subtranslucent

Fracture:

Sub Conchoidal - Fractures developed in brittle materials characterized by semi-curving surfaces.

Habit:

Disseminated - Occurs in small, distinct particles dispersed in matrix.

Habit:

Granular - Generally occurs as anhedral to subhedral crystals in matrix.

Habit:

Massive - Fibrous - Distinctly fibrous fine-grained forms.

Hardness:

4-5 - Fluorite-Apatite

Luminescence:

None.

Luster:

Sub Metallic

Streak:

yellowish orange

Optical Properties of Zincite

Dichroism (e):

deep red.

Dichroism (w):

yellow.

Gladstone-Dale:

CI meas= -0.136 (Poor) - where the CI = (1-KPDmeas/KC)
CI calc= -0.117 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1804,KPDmeas= 0.1835,KC= 0.1614

Optical Data:

Uniaxial (+), w=2.013, e=2.029, bire=0.0160.

RL Color:

Light rose-brown with strong red to yellow internal reflections.

Reflectivity

**Standardized Intensity (100%) Reflection Spectra of Zincite in Air**
λ	R₁	R₂	∑ R₁(λ)	∑ R₂(λ)
400 nm	13.00	13.60
420 nm	12.80	13.20
440 nm	12.60	12.80
460 nm	12.30	12.60
480 nm	12.10	12.40
500 nm	12.00	12.20
520 nm	11.80	12.10
540 nm	11.80	12.00
560 nm	11.70	11.90
580 nm	11.60	11.80
600 nm	11.40	11.70
620 nm	11.30	11.60
640 nm	11.20	11.50
660 nm	11.10	11.40
680 nm	11.00	11.20
700 nm	11.00	11.20

**Calculated Relative Intensity Colors of Zincite in Air**
Relative Intensity	0%	80%	100%	160%	240%	320%	400%	480%	560%	640%	720%	770%
R₁
R₂

Calculated Properties of Zincite

Electron Density:

r_electron=5.28 gm/cc
note: r_Zincite=5.66 gm/cc.

Fermion Index

Fermion Index = 0.03012
Boson Index = 0.96988

Photoelectric:

PE_Zincite= 39.29 barns/electron
U=PE_Zincite x r_electron= 207.61 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Zincite is Not Radioactive

Zincite Classification

Dana Class:

4.2.2.1 (4)Simple Oxides

(4.2)with a cation charge of 2+ (A++ O)

(4.2.2)Dana Group

4.2.2.1 Zincite (Zn,Mn)O P 6₃mc 6mm

4.2.2.2 Bromellite BeO P 6₃mc 6mm

Strunz Class:

IV/A.03-20 IV - Oxides

IV/A - Oxides with metal : oxygen = 1:1 and 2:1 (M2O,MO)

IV/A.03 - Brommelite - Zincite series

IV/A.03-10 Bromellite BeO P 6₃mc 6mm

IV/A.03-20 Zincite (Zn,Mn)O P 6₃mc 6mm

Other Zincite Information

References:

NAME( Pough60) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(AntBidBlaNic3, Ford32)

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Print or Cut-and-Paste your Zincite Specimen Label here :

Zincite

(Zn,Mn)O
Dana No: 4.2.2.1 Strunz No: IV/A.03-20
Locality:

Notes: