Wilhelmramsayite (original) (raw)
A valid IMA mineral species
About WilhelmramsayiteHide
This section is currently hidden. Click the show button to view.
Colour:
dark lead-grey becoming iron-black in air
Crystal System:
Orthorhombic
Name:
For Wilhelm Ramsay (January 20, 1865 - January 6, 1928), an outstanding Finnish geologist, mineralogist and petrographer who completed the first detailed study of the Khibiny-Lovozero alkaline complex.
Unique IdentifiersHide
This section is currently hidden. Click the show button to view.
Long-form identifier:
mindat:1:1:27204:7
1654b652-fc4e-40d4-b76e-09e4b3c13252
IMA Classification of WilhelmramsayiteHide
This section is currently hidden. Click the show button to view.
Classification of WilhelmramsayiteHide
This section is currently hidden. Click the show button to view.
2.FD.40
2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
F : Sulfides of arsenic, alkalies; sulfides with halide, oxide, hydroxide, H2O
D : With O, OH, H2O
Mineral SymbolsHide
This section is currently hidden. Click the show button to view.
As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
| Symbol | Source | Reference |
|---|---|---|
| Wrm | IMA–CNMNC | Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
Physical Properties of WilhelmramsayiteHide
This section is currently hidden. Click the show button to view.
Colour:
dark lead-grey becoming iron-black in air
Hardness:
VHN10=111 - 121 kg/mm2 - Vickers
Density:
2.75 g/cm3 (Measured) 2.84 g/cm3 (Calculated)
Optical Data of WilhelmramsayiteHide
This section is currently hidden. Click the show button to view.
Anisotropism:
weak, with bluish and brownish rotation colors
Colour in reflected light:
bluish-grey
Comments:
bluish grey to grey with slight bluish tint
Chemistry of WilhelmramsayiteHide
This section is currently hidden. Click the show button to view.
Mindat Formula:
Cu3FeS3 · 2H2O
Crystallography of WilhelmramsayiteHide
This section is currently hidden. Click the show button to view.
Crystal System:
Orthorhombic
Class (H-M):
m m m _(_2/_m_2/_m_2/m ) - Dipyramidal
Cell Parameters:
a = 5.147(2) Å, b = 7.289(2) Å, c = 5.889(3) Å
Ratio:
a:b:c = 0.706 : 1 : 0.808
Unit Cell V:
220.93 ų (Calculated from Unit Cell)
Morphology:
Flattened on (001) rectangular lamellar and tabular crystals up to 1 x 5 x 6 mm in size.
X-Ray Powder DiffractionHide
This section is currently hidden. Click the show button to view.
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 5.12 Å | (40) |
| 4.21 Å | (40) |
| 3.69 Å | (30) |
| 3.104 Å | (100) |
| 2.727 Å | (50) |
| 2.292 Å | (50) |
| 1.897 Å | (70) |
| 1.828 Å | (50) |
Geological EnvironmentHide
This section is currently hidden. Click the show button to view.
Type Occurrence of WilhelmramsayiteHide
This section is currently hidden. Click the show button to view.
General Appearance of Type Material:
rectangular platy to tabular crystals to 6 × 5 × 1 mm and is found both as singles and in aggregates
Place of Conservation of Type Material:
Fersman Mineralogical Museum, Russian Academy of Sciences, Moscow (catalog no. 3218/1)
Geological Setting of Type Material:
hyperagpaitic pegmatite as a late hydrothermal phase
Associated Minerals at Type Locality:
Synonyms of WilhelmramsayiteHide
This section is currently hidden. Click the show button to view.
Other Language Names for WilhelmramsayiteHide
This section is currently hidden. Click the show button to view.
Related Minerals - Strunz-mindat GroupingHide
This section is currently hidden. Click the show button to view.
| 2.FD. | Ferrovalleriite | 2(Fe,Cu)S · 1.5Fe(OH)2 | Trig. |
|---|---|---|---|
| 2.FD.05 | Kermesite | Sb2S2O | Tric. 1 : _P_1 |
| 2.FD.10 | Viaeneite | (Fe,Pb)4S8O | Mon. |
| 2.FD.20 | Erdite | NaFeS2 · 2H2O | Mon. 2/m : _B_2/b |
| 2.FD.25 | Coyoteite | NaFe3S5 · 2H2O | Tric. |
| 2.FD.30 | Haapalaite | (Fe2+,Ni)2(Mg,Fe2+)1.61S2(OH)3.22 | Hex. |
| 2.FD.30 | Valleriite | (Fe2+,Cu)4(Mg,Al)3S4(OH,O)6 | Trig. |
| 2.FD.30 | Yushkinite | (Mg,Al)V4+S2(OH)2 | Trig. 3_m_ _(_32/m ) : _P_3_m_1 |
| 2.FD.30 | Ekplexite | (Nb,Mo,W)S2 · (Mg1-xAlx)(OH)2+x | Trig. |
| 2.FD.35 | Tochilinite | Fe2+5-6(Mg,Fe2+)5S6(OH)10 | Mon. |
| 2.FD.35 | Ferrotochilinite | Fe2+6(Fe2+,Mg)5S6(OH)10 | Mon. |
| 2.FD.35 | Kaskasite | (Mo,Nb)S2 · (Mg1-xAlx)(OH)2+x | Trig. |
| 2.FD.35 | Manganokaskasite | (Mo,Nb)S2 · (Mn1-xAlx)(OH)2+x | Trig. |
| 2.FD.45 | Vyalsovite | FeCaAlS(OH)5 | Orth. |
| 2.FD.50 | Bazhenovite | Ca8S2(S3)(S2O3)(OH)12 · 20H2O | Mon. 2/m : _P_21/b |
| 2.FD.55 | UM2004-56-OS:BiCuPb | PbCu4Bi4S2(O,OH,H2O)16 (?) | Tet. |
Other InformationHide
This section is currently hidden. Click the show button to view.
Special Storage/
Display Requirements:
In moist air, wilhelmramsayite becomes iron-black
Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.
Internet Links for WilhelmramsayiteHide
This section is currently hidden. Click the show button to view.
References for WilhelmramsayiteHide
This section is currently hidden. Click the show button to view.
Reference List:
Localities for WilhelmramsayiteHide
This section is currently hidden. Click the show button to view.
This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the 
symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.
Locality ListHide
This section is currently hidden. Click the show button to view.
- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for references and further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. 
- Good crystals or important locality for species. 
- World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (e.g. from pseudomorphs).
All localities listed without proper references should be considered as questionable.
| Russia (TL) | |
|---|---|
| Murmansk Oblast Khibiny Massif Koashva Mt ⓘ Koashva Open Pit (TL) | Pekov et al. (2006) |