Zincmelanterite Mineral Data

General Zincmelanterite Information

Chemical Formula:

(Zn,Cu,Fe++)SO4•7(H2O)

Composition:

Molecular Weight = 286.05 gm

Zinc 13.72 % Zn 17.07 % ZnO

Iron 1.95 % Fe 2.51 % FeO

Copper 6.66 % Cu 8.34 % CuO

Hydrogen 4.93 % H 44.09 % H₂O

Sulfur 11.21 % S 27.99 % SO₃

Oxygen 61.52 % O

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Empirical Formula:

Zn_0.6Cu_0.3Fe²⁺_0.1(SO₄)•7(H₂O)

Environment:

Oxidation zone of pyritic ore deposits.

IMA Status:

Valid Species (Pre-IMA) 1920

Locality:

Good Hope and Vulcan mines, Vulcan, Gunnison Co., Colorado, USA. Link to MinDat.org Location Data.

Name Origin:

Named as the zinc-dominant member of the melanterite group.

Synonym:

Zinc-melanterite - Renamed Zincmelanterite by Mineralogical Record, v39 (2008), p131

Zincmelanterite Image

Images:

Zincmelanterite

Comments: White, powdery zincmelanterite.
Location: Sterling Mine, Ogdensburg, Franklin Mining District, Sussex County, New Jersey, USA. Scale: Picture Size 4 mm.
© Jeff Weissman / Photographic Guide to Mineral Species

Zincmelanterite Crystallography

Axial Ratios:

a:b:c =2.1582:1:1.6943

Cell Dimensions:

a = 14.05, b = 6.51, c = 11.03, Z = 4; beta = 105.51° V = 972.13 Den(Calc)= 1.95

Crystal System:

Monoclinic - Prismatic H-M Symbol (2/m) Space Group: P 2₁/c

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

By Intensity(I/I_o): 4.88(1), 3.77(0.7), 4.82(0.45),

Physical Properties of Zincmelanterite

Cleavage:

{???} Perfect, {???} Distinct

Color:

Green, Yellowish green, Apple green.

Density:

2.02

Diaphaneity:

Transparent to Translucent

Hardness:

2 - Gypsum

Luminescence:

Non-fluorescent.

Luster:

Vitreous (Glassy)

Optical Properties of Zincmelanterite

Gladstone-Dale:

CI meas= 0.024 (Excellent) - where the CI = (1-KPDmeas/KC)
CI calc= -0.011 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2481,KPDmeas= 0.2395,KC= 0.2453
Ncalc = 1.48 - 1.5

Optical Data:

Biaxial (+), a=1.477-1.479, b=1.483-1.487, g=1.488-1.489, bire=0.0100-0.0110

Calculated Properties of Zincmelanterite

Electron Density:

Bulk Density (Electron Density)=2.01 gm/cc
note: Specific Gravity of Zincmelanterite =1.95 gm/cc.

Fermion Index:

Fermion Index = 0.0071807592
Boson Index = 0.9928192408

Photoelectric:

PE_{Zincmelanterite}= 10.47 barns/electron
U=PE_{Zincmelanterite} x rElectron Density= 21.02 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Zincmelanterite is Not Radioactive

Zincmelanterite Classification

Dana Class:

29.06.10.03 (29)Hydrated Acid and Sulfates

(29.06)where A XO4 ï¿½ x(H2O)

(29.06.10)Melanterite Group (Heptahydrates, Monoclinic: P21/c)

29.06.10.01 Melanterite FeSO4•7(H2O) P 2₁/c 2/m

29.06.10.02 Boothite CuSO4•7(H2O) P 2₁/c 2/m

29.06.10.03 Zincmelanterite (Zn,Cu,Fe)SO4•7(H2O) P 2₁/c 2/m

29.06.10.04 Bieberite CoSO4•7(H2O) P 2₁/c 2/m

29.06.10.05 Mallardite MnSO4•7(H2O) P 2₁/c 2/m

29.06.10.06 Alpersite! (Mg,Cu)SO4•7H2O P 2₁/c 2/m

Strunz Class:

07.CB.35 07 - SULFATES (SELENATES, TELLURATES)

07.C - Sulfates (selenates, etc.) without Additional Anions, with H2O

07.CB -With only medium-sized cations

07.CB.35 Bieberite CoSO4•7(H2O) P 2₁/c 2/m

07.CB.35 Boothite CuSO4•7(H2O) P 2₁/c 2/m

07.CB.35 Mallardite MnSO4•7(H2O) P 2₁/c 2/m

07.CB.35 Melanterite FeSO4•7(H2O) P 2₁/c 2/m

07.CB.35 Zincmelanterite (Zn,Cu,Fe)SO4•7(H2O) P 2₁/c 2/m

07.CB.35 Alpersite! (Mg,Cu)SO4•7H2O P 2₁/c 2/m

Other Zincmelanterite Information

References:

NAME( AntBidBlaNic5) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)

See Also:

Links to other databases for Zincmelanterite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - GeoScienceWorld
4 - Google Images
5 - Google Scholar
6 - Handbook of Mineralogy (MinSocAm)
7 - Handbook of Mineralogy (UofA)
8 - MinDAT
9 - Mineralienatlas (Deutsch)
10 - Online Mineral Museum
11 - QUT Mineral Atlas
12 - Ruff.Info

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

Zincmelanterite

(Zn,Cu,Fe++)SO4•7(H2O)
Dana No: 29.06.10.03 Strunz No: 07.CB.35
Locality:

Notes:

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