Mindat Logo

Wilhelmramsayite

This page is currently not sponsored. Click here to sponsor this page.



Formula:
Cu
 
3
FeS
 
3
·2H
 
2
O
System:OrthorhombicColour:dark lead-grey becoming ...
Hardness:
Name:For Wilhelm Ramsay (January 20, 1865-January 6, 1928), an outstanding Finnish geologist, mineralogist and petrographer who completed first detailed study of the Khibiny-Lovozcro alkaline complex.
This page provides mineralogical data about Wilhelmramsayite.

Classification of Wilhelmramsayite

IMA status:Approved 2004
Strunz 8th edition ID:2/0.0-
Nickel-Strunz 10th (pending) edition ID: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
mindat.org URL:http://www.mindat.org/min-27204.html
Please feel free to link to this page.

Type Occurrence of Wilhelmramsayite

Type Locality:Koashva quarry, Koashva Mt, Khibiny Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia
Place of Conservation of Type Material:Fernsman Museum
Geological Setting of type material:hypcragpaitic pegmatite

Physical Properties of Wilhelmramsayite

Lustre:Metallic
Colour:dark lead-grey becoming iron-black
Streak:Black
Hardness (Mohs):
Hardness (Vickers):VHN100=111 - 121
Cleavage:Perfect
{001}
Fracture:Step-Like
Density (measured):2.75 g/cm3
Density (calculated):2.84 g/cm3

Crystallography of Wilhelmramsayite

Crystal System:Orthorhombic
Class (H-M):mmm (2/m 2/m 2/m) - Dipyramidal
Space Group:Pmmm {P2/m 2/m 2/m}
Cell Parameters:a = 5.147Å, b = 7.289Å, c = 5.889Å
Ratio:a:b:c = 0.706 : 1 : 0.808
Unit Cell Volume: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 Diffraction:
d-spacingIntensity
5.12 (40)
4.21 (40)
3.69 (30)
3.104 (100)
2.727 (50)
2.292 (50)
1.897 (70)
1.828 (50)

Optical Data of Wilhelmramsayite

Type:Anisotropic
Anisotropism:weak, with bluish and brownish rotation colors
Bireflectance:Weak
Colour in reflected light:bluish-grey
Pleochroism:Weak
Comments:bluish grey to grey with slight bluish tint

Chemical Properties of Wilhelmramsayite

Formula:
Cu
 
3
FeS
 
3
·2H
 
2
O
Simplified for copy/paste:Cu3FeS3·2H2O
Essential elements:Cu, Fe, H, O, S
All elements listed in formula:Cu, Fe, H, O, S

Relationship of Wilhelmramsayite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
2.FD.UKI-2004-(OS:BiCuPb)
PbCu
 
4
Bi
 
4
S
 
2
O
 
16
(?)
2.FD.05Kermesite
Sb
 
2
S
 
2
O
2.FD.10Viaeneite
(Fe,Pb)
 
4
S
 
8
O
2.FD.20Erdite
NaFeS
 
2
· 2H
 
2
O
2.FD.25Coyoteite
NaFe
 
3
S
 
5
· 2H
 
2
O
2.FD.30Haapalaite
(Fe
2+
 
,Ni)
 
2
(Mg,Fe
2+
 
)
 
1.61
S
 
2
(OH)
 
3.22
2.FD.30Valleriite
(Fe
2+
 
,Cu)
 
4
(Mg,Al)
 
3
S
 
4
(OH,O)
 
6
2.FD.30Yushkinite
(Mg,Al)V
4+
 
S
 
2
(OH)
 
2
2.FD.35Tochilinite
Fe
2+
5-6
(Mg,Fe
2+
 
)
 
5
S
 
6
(OH)
 
10
2.FD.45Vyalsovite
FeCaAlS(OH)
 
5
2.FD.50Bazhenovite
Ca
 
8
S
 
2
(S
 
3
)(S
 
2
O
 
3
)(OH)
 
12
· 20H
 
2
O

Other Names for Wilhelmramsayite

Synonyms:
IMA2004-033
Other Languages:
German:Wilhelmramsayit

Other Information

Special Storage/
Display Requirements:
In moist air, wilhelmramsayite becomes iron-black
Health Warning:No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for Wilhelmramsayite

Reference List:

- +
Pekov, I.V., Chukanov, N.V., Boldyreva, M.M., Dubinchuk, V.T. (2006): Wilhelmramsayite, Cu3FeS3•2H2O, a new mineral from Khibiny Massif, Kola Peninsula. Proceedings of the Russian Mineralogical Society, 135(1), 38-48.

Internet Links for Wilhelmramsayite

Search Engines:
  • Look for Wilhelmramsayite on Google
  • Look for Wilhelmramsayite images on Google
  • External Links:
  • Look for Wilhelmramsayite on Webmineral
  • Look for Wilhelmramsayite on Athena Mineralogy
  • Look for Wilhelmramsayite on Mineralien Atlas
  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Mineral Dealers:
  • The Arkenstone - Fine Minerals
  • High-end worldwide specimens & outstanding customer service
  • Fine Minerals from Weinrich Minerals, Inc.
  • Fabre Minerals - search for Wilhelmramsayite specimens
  • DAKOTA MATRIX offers Cabinet and Rare Species from Worldwide Localities.
  • Buy from McDougall Minerals
  • Buy from David K Joyce minerals
  • Wilensky Fine Minerals
  • Mineral Classics - Worldwide Collector Quality Minerals and Gems
  • Fine and rare minerals from mintreasure.com
  • Find Wilhelmramsayite on www.crystalclassics.co.uk
  • Rare and Unusual minerals at Mineralogical Research Company
  • Localities for Wilhelmramsayite

    The 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.
    (TL) indicates type locality. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
    Russia
     
    • Northern Region
      • Murmanskaja Oblast'
        • Kola Peninsula
          • Khibiny Massif
            • Koashva Mt
    Pekov, I.V., Chukanov, N.V., Boldyreva, M.M., Dubinchuk, V.T. (2006): Wilhelmramsayite, Cu3FeS3•2H2O, a new mineral from Khibiny Massif, Kola Peninsula. Proceedings of the Russian Mineralogical Society, 135(1), 38-48.
    Mineral and/or Locality  
    Search Google  
    Copyright © Jolyon Ralph and Ida Chau 1993-2014. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them. Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of thousands of members and supporters. Mindat does not offer minerals for sale. If you would like to add information to improve the quality of our database, then click here to register.
    Current server date and time: May 21, 2014 10:07:43
    Mineral and Locality Search
    Mineral:
    and/or Locality:
    Options
    Fade toolbar when not in focusFix toolbar to bottom of page
    Hide Social Media Links
    Slideshow frame delay seconds