General Safflorite Information
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 Chemical Formula: |
(Co,Fe)As2 |
| Composition: |
Molecular Weight = 208.00 gm |
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Iron 6.71 % Fe |
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Cobalt 21.25 % Co |
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Arsenic 72.04 % As |
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______ |
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100.00 % |
| Empirical Formula: |
Co0.75Fe2+0.25As2 |
| Environment: |
Hydrothermal veins of moderate temperature and presssure. |
| IMA Status: |
Valid Species (Pre-IMA) 1835 |
| Locality: |
Schneeberg District, Erzgebirge, Saxony, GermanySchneeberg District, Erzgebirge, Saxony, Germany. Link to MinDat.org Location Data. |
| Name Origin: |
From the German Safflor - "dyer's saffron." |
| Name Pronunciation: |
Safflorite + Pronunciation  |
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Safflorite Image |
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Images:
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Safflorite
Comments: Safflorite covering three faces of the specimen, with silver.
Location: Castle Mine (Castle-Tretheway Mine), Gowganda, Haultain Township, Timiskaming District, Ontario, Canada.
Scale: 7x 3x 3.5 cm.
© Ibrahim Jameel / Khyber Mineral Company |
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Safflorite Crystallography
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| Axial Ratios: |
a:b:c =0.8688:1:0.5036 |
| Cell Dimensions: |
a = 5.173, b = 5.954, c = 2.999, Z = 2; V = 92.37 Den(Calc)= 7.48 |
| Crystal System: |
Orthorhombic - DipyramidalH-M Symbol (2/m 2/m 2/m) Space Group: Pnnm |
| X Ray Diffraction: |
By Intensity(I/Io): 2.379(1), 2.572(0.8), 2.597(0.55), |
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Crystal Structure:
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Yang H , Downs R T , Eichler C , Acta Crystallographica, Section E , 64 (2008) p.i62-i62, Safflorite, (Co,Ni,Fe)As2, isomorphous with marcasite, Locality: Timiskaming County, Ontario, Canada, RRUFF ID: R070611
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Physical Properties of Safflorite
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| Cleavage: |
{010} Imperfect |
| Color: |
Gray, Dark gray, Tin white. |
| Density: |
6.9 - 7.3, Average = 7.1 |
| Diaphaneity: |
Opaque |
| Fracture: |
Brittle - Generally displayed by glasses and most non-metallic minerals. |
| Habit: |
Massive - Granular - Common texture observed in granite and other igneous rock. |
| Habit: |
Radial - Crystals radiate from a center without producing stellar forms (e.g. stibnite) |
| Hardness: |
4-5 - Fluorite-Apatite |
| Luminescence: |
Non-fluorescent. |
| Luster: |
Metallic |
| Magnetism: |
Nonmagnetic |
| Streak: |
grayish black |
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Optical Properties of Safflorite
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| RL Anisotrophism: |
Strong. |
| RL Color: |
White. |
| RL Pleochroism: |
Weak. |
| Reflectivity |
Standardized Intensity (100%) Reflection Spectra of Safflorite in Air
| λ |
R1 |
R2 |
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∑ R1(λ) |
∑ R2(λ) |
| 400 nm |
55.80 |
52.60 | |
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| 420 nm |
55.80 |
53.00 |
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| 440 nm |
55.80 |
53.40 |
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| 460 nm |
55.60 |
53.80 |
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| 480 nm |
55.20 |
54.10 |
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| 500 nm |
54.70 |
54.30 |
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| 520 nm |
54.20 |
54.40 |
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| 540 nm |
53.50 |
54.50 |
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| 560 nm |
52.80 |
54.50 |
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| 580 nm |
52.20 |
54.50 |
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| 600 nm |
51.80 |
54.40 |
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| 620 nm |
51.30 |
54.30 |
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| 640 nm |
51.00 |
54.20 |
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| 660 nm |
50.70 |
54.10 |
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| 680 nm |
50.50 |
53.90 |
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| 700 nm |
50.30 |
53.80 |
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Calculated Relative Intensity Colors of Safflorite in Air
Relative
Intensity |
0% |
20% |
40% |
60% |
80% |
100% |
120% |
140% |
160% |
170% |
| R1 |
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| R2 |
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Calculated Properties of Safflorite
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| Electron Density: |
Bulk Density (Electron Density)=6.67 gm/cc
note: Specific Gravity of Safflorite =7.48 gm/cc.
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| Fermion Index: |
Fermion Index = 0.0014229913
Boson Index = 0.9985770087 |
| Photoelectric: |
PESafflorite = 62.03 barns/electron
U=PESafflorite x rElectron Density= 413.81 barns/cc.
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Safflorite is Not Radioactive |
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Safflorite Classification
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| Dana Class: |
02.12.02.11 (02)Sulfides - Including Selenides and Tellurides |
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(02.12)where Am Bn Xp, with (m+n):p=1:2 |
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(02.12.02)Marcasite Group (Orthorhombic: Pnnm) |
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02.12.02.01 Marcasite FeS2 Pnnm 2/m 2/m 2/m |
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02.12.02.02 Ferroselite FeSe2 Pnnm 2/m 2/m 2/m |
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02.12.02.03 Frohbergite FeTe2 Pnnm 2/m 2/m 2/m |
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02.12.02.04 Hastite? CoSe2 Pnnm 2/m 2/m 2/m |
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02.12.02.05 Mattagamite CoTe2 Pnnm 2/m 2/m 2/m |
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02.12.02.06 Kullerudite NiSe2 Pnnm 2/m 2/m 2/m |
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02.12.02.07 Omeiite (Os,Ru)As2 Pnnm 2/m 2/m 2/m |
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02.12.02.08 Anduoite (Ru,Os)As2 Pnnm 2/m 2/m 2/m |
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02.12.02.09 Lollingite FeAs2 Pnnm 2/m 2/m 2/m |
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02.12.02.10 Seinajokite (Fe,Ni)(Sb,As)2 Pnnm 2/m 2/m 2/m |
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02.12.02.11 Safflorite (Co,Fe)As2 Pnnm 2/m 2/m 2/m |
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02.12.02.12 Rammelsbergite NiAs2 Pnnm 2/m 2/m 2/m |
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02.12.02.13 Nisbite NiSb2 Pnnm 2/m 2/m 2/m |
| Strunz Class: |
02.EB.15a 02 - SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulf |
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02.E - Metal Sulfides, M:S � 1:2 |
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02.EB -M:S = 1:2, with Fe, Co, Ni, PGE, etc. |
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02.EB.15a Clinosafflorite (Co,Fe,Ni)As2 P 21/n 2/m |
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02.EB.15a Anduoite (Ru,Os)As2 Pnnm 2/m 2/m 2/m |
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02.EB.15a Lollingite FeAs2 Pnnm 2/m 2/m 2/m |
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02.EB.15a Omeiite (Os,Ru)As2 Pnnm 2/m 2/m 2/m |
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02.EB.15a Nisbite NiSb2 Pnnm 2/m 2/m 2/m |
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02.EB.15a Rammelsbergite NiAs2 Pnnm 2/m 2/m 2/m |
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02.EB.15a Safflorite (Co,Fe)As2 Pnnm 2/m 2/m 2/m |
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Other Safflorite Information
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| References: |
NAME( Duda&Rejl90) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(AntBidBlaNic1) |
| See Also: |
Links to other databases for Safflorite :
1 - Am. Min. Crystal Structure Database
2 - Amethyst Galleries' Mineral Gallery
3 - Athena
4 - EUROmin Project
5 - Ecole des Mines de Paris
6 - Franklin Minerals(Dunn)
7 - GeoScienceWorld
8 - Google Images
9 - Google Scholar
10 - Handbook of Mineralogy (MinSocAm)
11 - HyperPhysics
12 - MinDAT
13 - Mineral and Gemstone Kingdom
14 - Mineralienatlas (Deutsch)
15 - Online Mineral Museum
16 - QUT Mineral Atlas
17 - Ruff.Info
18 - WWW-MINCRYST
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Print or Cut-and-Paste your Safflorite Specimen Label here :
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Safflorite
(Co,Fe)As2
Dana No: 02.12.02.11 Strunz No: 02.EB.15a
Locality:
Notes:
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