[Zinc (zn)] [Index] 

  •Zincite

Table12-General Zincite Information
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: Zn0.9Mn2+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
Zincite
Comments: Orange Zincite hexagonal pyramid.
Location: Franklin, Sussex County, New Jersey, USA. Scale: Not Given.
© Lou Perloff / Photo Atlas of Minerals


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
X Ray Diffraction: By Intensity(I/Io): 2.476(1), 2.816(0.71), 2.602(0.56),
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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






Calculated Properties of Zincite
Electron Density: electron=5.28 gm/cc
note: Zincite =5.66 gm/cc.
Fermion Index
Fermion Index = 0.03012
Boson Index = 0.96988
Photoelectric:
PEZincite = 39.29 barns/electron
U=PEZincite x &#-3982;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

•Matraite
Table13-General Matraite Information
General Matraite Information
Chemical Formula:
ZnS
Composition:
Molecular Weight = 97.46 gm
Zinc 67.10 % Zn
Sulfur 32.90 % S
______
100.00 %
Empirical Formula:
ZnS
Environment:
Hydrothermal origin.
IMA Status:
Valid Species (Pre-IMA) 1958
Locality:
Gyöngyösoroszi, Mátra Mountains locality, Heves Co., Hungary. Link to MinDat.org Location Data.

Name Origin:
Name for the locality.

Matraite Crystallography
Axial Ratios:
a:c = 1:2.47368
Cell Dimensions:
a = 3.8, c = 9.4, Z = 3; V = 117.55 Den(Calc)= 4.13
Crystal System:
Trigonal - Ditrigonal PyramidalH-M Symbol (3m) Space Group: R 3m

Physical Properties of Matraite
Cleavage:
[1010] Distinct
Color:
Brownish yellow.
Diaphaniety:
Transparent
Fracture:
Brittle - Generally displayed by glasses and most non-metallic minerals.
Habit:
Aggregates - Made of numerous individual crystals or clusters.
Habit:
Pyramidal - Crystals are shaped like pyramids.
Hardness:
3.5-4 - Copper Penny-Fluorite
Luster:
Vitreous (Glassy)
Streak:
yellow white

Calculated Properties of Matraite
Electron Density:
&#-3982;electron=3.90 gm/cc
note: &#-3982;Matraite =4.13 gm/cc.
Fermion Index
Fermion Index = 0.02997
Boson Index = 0.97003
Photoelectric:
PEMatraite = 35.76 barns/electron
U=PEMatraite x &#-3982;electron= 139.42 barns/cc.
Radioactivity:
GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Matraite is Not Radioactive

Matraite Classification
Dana Class:
2.8.15.1 (2)Sulfides - Including Selenides and Tellurides
(2.8)where Am Bn Xp, with (m+n):p=1:1
(2.8.15)Dana Group
2.8.15.1 Matraite ZnS R 3m 3m
Strunz Class:
II/C.13-20 II - Sulfides and sulphosalts
II/C - Sulfides with metal: sulfur, selenium and tellurium = 1:1
II/C.13 - Wurtzite series
II/C.13-10 Wurtzite (Zn,Fe)S P 63mc 6mm
II/C.13-20 Matraite ZnS R 3m 3m
II/C.13-30 Greenockite CdS P 63mc 6mm
II/C.13-40 Cadmoselite CdSe P 63mc 6mm
II/C.13-50 Rambergite! MnS P 63mc 6mm

•Stilleite
Table14-General Stilleite Information
General Stilleite Information
Chemical Formula:
ZnSe
Composition:
Molecular Weight = 144.35 gm
Zinc 45.30 % Zn
Selenium 54.70 % Se
______
100.00 %
Empirical Formula:
ZnSe
Environment:
Included in linnaeite and intermixed with other selenides.
IMA Status:
Valid Species (Pre-IMA) 1956
Locality:
Kasolo (Shinkolobwe), Katanga (Shaba), Congo (Zaire). Link to MinDat.org Location Data.

Name Origin:
Named for Hans Stille (1876-1966), distinguished German geologist.
Synonym:
ICSD 67791
PDF 37-1463

Stilleite Crystallography
Cell Dimensions:
a = 5.67, Z = 4; V = 182.28 Den(Calc)= 5.26
Crystal System:
Isometric - HextetrahedralH-M Symbol (4 3m) Space Group: F43m

X Ray Diffraction:
By Intensity(I/Io): 3.273(1), 2.003(0.7), 1.707(0.44),

Physical Properties of Stilleite
Color:
Gray.
Density:
5.42
Diaphaniety:
Translucent to Opaque
Habit:
Inclusions - Generally found as inclusions in other minerals.
Habit:
Microscopic Crystals - Crystals visible only with microscopes.
Hardness:
5 - Apatite
Luster:
Metallic

Optical Properties of Stilleite
Optical Data:
Isotropic, n=2.5.
RL Color:
Resembles tetrahedrite without the olive-brown or greenish blue hues.

Calculated Properties of Stilleite
Electron Density:
relectron=4.66 gm/cc
note: rStilleite =5.26 gm/cc.
Fermion Index
Fermion Index = 0.06014
Boson Index = 0.93986
Photoelectric:
PEStilleite = 67.66 barns/electron
U=PEStilleite x relectron= 315.57 barns/cc.
Radioactivity:
GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Stilleite is Not Radioactive

Stilleite Classification
Dana Class:
2.8.2.2 (2)Sulfides - Including Selenides and Tellurides
(2.8)where Am Bn Xp, with (m+n):p=1:1
(2.8.2)Sphalerite Group (Isometric: F4¯3m)
2.8.2.1 Sphalerite (Zn,Fe)S F43m 4 3m
2.8.2.2 Stilleite ZnSe F43m 4 3m
2.8.2.3 Metacinnabar HgS F43m 4 3m
2.8.2.4 Tiemannite HgSe F43m 4 3m
2.8.2.5 Coloradoite HgTe F43m 4 3m
2.8.2.6 Hawleyite CdS F43m 4 3m

Strunz Class:
II/C.01-40 II - Sulfides and sulphosalts
II/C - Sulfides with metal: sulfur, selenium and tellurium = 1:1
II/C.01 - Sphalerite group and related compounds (with Leutite)
II/C.01-10 Sphalerite (Zn,Fe)S F43m 4 3m
II/C.01-20 Hawleyite CdS F43m 4 3m
II/C.01-30 Metacinnabar HgS F43m 4 3m
II/C.01-40 Stilleite ZnSe F43m 4 3m
II/C.01-50 Tiemannite HgSe F43m 4 3m
II/C.01-60 Coloradoite HgTe F43m 4 3m
II/C.01-70 Polhemusite (Zn,Hg)S P 4/n 4/m

•Ordonezite
Table15-General Ordonezite Information
General Ordonezite Information
Chemical Formula:
ZnSb2O6
Composition:
Molecular Weight = 404.89 gm
Zinc 16.15 % Zn 20.10 % ZnO
Antimony 60.14 % Sb 79.90 % Sb2O5
Oxygen 23.71 % O
______ ______
100.00 % 100.00 % = TOTAL OXIDE
Empirical Formula:
ZnSb2O6
IMA Status:
Valid Species (Pre-IMA) 1955
Locality:
Santin mine, Santa Catarina, Guanajuato, Mexico Link to MinDat.org Location Data.
Name Origin:
Named for Ezequiel Ordonez (1867-1950), Mexican geologist.
Synonym:
ICSD 30409
PDF 38-453

Ordonezite Image
Ordonezite
Comments: Greenish, glassy crystals of ordonezite.
Location: Santin mine, Guanajuato, Mexico. Scale: Not Given.
© Lou Perloff / Photo Atlas of Minerals



Ordonezite Crystallography
Axial Ratios:
a:c = 1:1.98409
Cell Dimensions:
a = 4.652, c = 9.23, Z = 2; V = 199.75 Den(Calc)= 6.73
Crystal System:
Tetragonal - Ditetragonal DipyramidalH-M Symbol (4/m 2/m 2/m) Space Group: P 41/mnm
X Ray Diffraction:
By Intensity(I/Io): 1.72(1), 3.26(0.9), 2.55(0.8),

Physical Properties of Ordonezite
Cleavage:
None
Color:
Colorless, Yellow green, Light brown, Dark brown, Olive green.
Density:
6.635
Diaphaniety:
Transparent
Fracture:
Conchoidal - Fractures developed in brittle materials characterized by smoothly curving surfaces, (e.g. quartz).
Hardness:
6.5 - Pyrite
Luster:
Adamantine
Streak:
greenish gray

Optical Properties of Ordonezite
Gladstone-Dale:
CI meas= 0.07 (Fair) - where the CI = (1-KPDmeas/KC)
CI calc= 0.083 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1412,KPDmeas= 0.1432,KC= 0.154
Optical Data:
Uniaxial (+), e=1.95.

Calculated Properties of Ordonezite
Electron Density:
relectron=5.90 gm/cc
note: rOrdonezite =6.64 gm/cc.
Fermion Index
Fermion Index = 0.00673
Boson Index = 0.99327
Photoelectric:
PEOrdonezite = 207.62 barns/electron
U=PEOrdonezite x relectron=1,224.87 barns/cc.
Radioactivity:
GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Ordonezite is Not Radioactive

Ordonezite Classification
Dana Class:
44.2.1.2 (44)Antimonates
(44.2)A (X2 O6)
(44.2.1)Dana Group
44.2.1.1 Bystromite MgSb2O6 P 41/mnm 4/m 2/m 2/m
44.2.1.2 Ordonezite ZnSb2O6 P 41/mnm 4/m 2/m 2/m
44.2.1.3 Tripuhyite FeSbO4 P 41/mnm 4/m 2/m 2/m

Strunz Class:
IV/D.04-60 IV - Oxides
IV/D - Oxides with metal : oxygen = 1:2 (MO2 and related compounds)
IV/D.04 - Tapiolite group
IV/D.04-10 Ferrotapiolite (Fe,Mn)(Ta,Nb)2O6 P 41/mnm 4/m 2/m 2/m
IV/D.04-20 Manganotapiolite (Mn,Fe)(Ta,Nb)2O6 P 41/mnm 4/m 2/m 2/m
IV/D.04-40 Bystromite MgSb2O6 P 41/mnm 4/m 2/m 2/m
IV/D.04-50 Tripuhyite FeSbO4 P 41/mnm 4/m 2/m 2/m
IV/D.04-60 Ordonezite ZnSb2O6 P 41/mnm 4/m 2/m 2/m

Zinc oxide is perhaps the best known and most widely used zinc compound, as it makes a good base for white pigments in paint. It also finds industrial use in the rubber industry, and is sold as opaque sunscreen. A variety of other zinc compounds find use industrially, such as zinc chloride (in deodorants), zinc sulfide (in luminescent paints), and zinc methyl in the organic laboratory. Roughly one quarter of all zinc output is consumed in the form of zinc compounds. Zinc oxide is a chemical compound with formula ZnO. It is nearly insoluble in water but soluble in acids or alkalis. History The ancient Greeks used olive oil as a type of sunscreen. Zinc chloride (ZnCl2) is a colorless or white compound of zinc and chlorine that is extremely hygroscopic.