Malanite Mineral Data (original) (raw)
General Malanite Information
Chemical Formula:
Cu(Pt,Ir)2S4
Composition:
Molecular Weight = 580.54 gm
Copper 10.95 % Cu
Iridium 16.56 % Ir
Platinum 50.40 % Pt
Sulfur 22.09 % S
______
100.00 %
Empirical Formula:
CuPt1.5Ir0.5S4
Environment:
In peridotite-type platinum ores with Cu-Ni sulfides.
IMA Status:
Approved IMA 1995
Locality:
Malan valley, Zunhua, Hebei Province, China. Link to MinDat.org Location Data.
Name Origin:
Named for the locality.
Name Pronunciation:
Malanite 
Synonym:
Cobaltmalanite - Co-bearing malanite
ICSD 56265
IMA1995-003
PDF 38-406
Malanite Image
Images:
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Malanite Comments: Epoxy grain mount of silver gray metallic polished fragment of malanite. Location: Placer concentrate from Philipp Massif, Kamchatka, Russia.Scale: See Image. © Rruff Database |
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Malanite Crystallography
Cell Dimensions:
a = 9.91, Z = 8; V = 973.24 Den(Calc)= 7.92
Crystal System:
Isometric - HexoctahedralH-M Symbol (4/m 3 2/m) Space Group: F d3m
X Ray Diffraction:
By Intensity(I/Io): 1.75(1), 1.9(0.7), 2.98(0.6),
Physical Properties of Malanite
Color:
White, Steel gray.
Density:
7.4
Diaphaneity:
Opaque
Habit:
Granular - Generally occurs as anhedral to subhedral crystals in matrix.
Hardness:
5 - Apatite
Luster:
Metallic
Optical Properties of Malanite
RL Color:
Bright white with a faint brown tint.
Calculated Properties of Malanite
Electron Density:
Bulk Density (Electron Density)=6.78 gm/cc
note: Specific Gravity of Malanite =7.92 gm/cc.
Fermion Index:
Fermion Index = 0.17
Boson Index = 0.83
Photoelectric:
PEMalanite =1,009.01 barns/electron
U=PEMalanite x rElectron Density=6,841.39 barns/cc.
Radioactivity:
GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Malanite is Not Radioactive
Malanite Classification
Dana Class:
02.10.01.17 (02)Sulfides - Including Selenides and Tellurides
(02.10)where Am Bn Xp, with (m+n):p=3:4
(02.10.01)Linnaeite Group (Isometric: Fd3m)
02.10.01.01 Linnaeite CoCo2S4 F d3m 4/m 3 2/m
02.10.01.02 Carrollite Cu(Co,Ni)2S4 F d3m 4/m 3 2/m
02.10.01.03 Fletcherite Cu(Ni,Co)2S4 F d3m 4/m 3 2/m
02.10.01.04 Tyrrellite (Cu,Co,Ni)3Se4 F d3m 4/m 3 2/m
02.10.01.05 Bornhardtite CoCo2Se4 F d3m 4/m 3 2/m
02.10.01.06 Siegenite (Ni,Co)3S4 F d3m 4/m 3 2/m
02.10.01.07 Polydymite NiNi2S4 F d3m 4/m 3 2/m
02.10.01.08 Violarite FeNi2S4 F d3m 4/m 3 2/m
02.10.01.09 Trustedtite Ni3Se4 F d3m 4/m 3 2/m
02.10.01.10 Greigite FeFe2S4 F d3m 4/m 3 2/m
02.10.01.11 Daubreelite FeCr2S4 F d3m 4/m 3 2/m
02.10.01.12 Indite FeIn2S4 F d3m 4/m 3 2/m
02.10.01.13 Kalininite ZnCr2S4 F d3m 4/m 3 2/m
02.10.01.14 Florensovite Cu(Cr1.5Sb0.5)S4 F d3m 4/m 3 2/m
02.10.01.15 Cuproiridsite CuIr2S4 F d3m 4/m 3 2/m
02.10.01.16 Cuprorhodsite CuRh2S4 F d3m 4/m 3 2/m
02.10.01.17 Malanite Cu(Pt,Ir)2S4 F d3m 4/m 3 2/m
02.10.01.18 Ferrorhodsite (Fe,Cu)(Rh,Ir,Pt)2S4 F d3m 4/m 3 2/m
02.10.01.19 Cadmoindite! CdIn2S4 F d3m 4/m 3 2/m
Strunz Class:
02.DA.05 02 - SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulf
02.D - Metal Sulfides, M:S = 3:4 and 2:3
02.DA -M:S = 3:4
02.DA.05 Bornhardtite CoCo2Se4 F d3m 4/m 3 2/m
02.DA.05 Florensovite Cu(Cr1.5Sb0.5)S4 F d3m 4/m 3 2/m
02.DA.05 Carrollite Cu(Co,Ni)2S4 F d3m 4/m 3 2/m
02.DA.05 Fletcherite Cu(Ni,Co)2S4 F d3m 4/m 3 2/m
02.DA.05 Cuproiridsite CuIr2S4 F d3m 4/m 3 2/m
02.DA.05 Cuprorhodsite CuRh2S4 F d3m 4/m 3 2/m
02.DA.05 Dayingite* CuCoPtS4 F m3m 4/m 3 2/m
02.DA.05 Daubreelite FeCr2S4 F d3m 4/m 3 2/m
02.DA.05 Ferrorhodsite (Fe,Cu)(Rh,Ir,Pt)2S4 F d3m 4/m 3 2/m
02.DA.05 Greigite FeFe2S4 F d3m 4/m 3 2/m
02.DA.05 Indite FeIn2S4 F d3m 4/m 3 2/m
02.DA.05 Linnaeite CoCo2S4 F d3m 4/m 3 2/m
02.DA.05 Kalininite ZnCr2S4 F d3m 4/m 3 2/m
02.DA.05 Malanite Cu(Pt,Ir)2S4 F d3m 4/m 3 2/m
02.DA.05 Polydymite NiNi2S4 F d3m 4/m 3 2/m
02.DA.05 Violarite FeNi2S4 F d3m 4/m 3 2/m
02.DA.05 Tyrrellite (Cu,Co,Ni)3Se4 F d3m 4/m 3 2/m
02.DA.05 Siegenite (Ni,Co)3S4 F d3m 4/m 3 2/m
02.DA.05 Xingzhongite (Pb,Cu,Fe)(Ir,Pt,Rh)2S4 F d3m 4/m 3 2/m
02.DA.05 Trustedtite Ni3Se4 F d3m 4/m 3 2/m
02.DA.05 Cadmoindite! CdIn2S4 F d3m 4/m 3 2/m
Other Malanite Information
References:
NAME( AntBidBlaNic1) PHYS. PROP.(Am.Min.,Vol.82,p820,1997) OPTIC PROP.(AntBidBlaNic1)
See Also:
Links to other databases for Malanite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - Ecole des Mines de Paris
5 - GeoScienceWorld
6 - Google Images
7 - Google Scholar
8 - Handbook of Mineralogy (MinSocAm)
9 - Handbook of Mineralogy (UofA)
10 - MinDAT
11 - Mineralienatlas (Deutsch)
12 - Online Mineral Museum
13 - QUT Mineral Atlas
14 - Ruff.Info
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Print or Cut-and-Paste your Malanite Specimen Label here :
Malanite
Cu(Pt,Ir)2S4
Dana No: 02.10.01.17 Strunz No: 02.DA.05
Locality:
Notes: