Mindat Logo
Home Page Log In Message Board The Mindat Directory
Register Search Pages Chat Now! (2 online) Mindat Auctions

UM1999-38-WO:CrV

Formula:
V, Cr, W, O, H [V:Cr:W ratio about· 2:1:3]


Greyish green to pale greyish yellow, tiny spherulitic aggregates (diameter up to 0.1 mm), associated with rankachite; symmetry unknown, but assumed to be monoclinic or triclinic (Kolitsch, 1999).
Possibly a tungstate.


Classification of UM1999-38-WO:CrV

IMA status:Unnamed - valid
Nickel-Strunz 10th (pending) edition ID:7.GB.15

7 : SULFATES (selenates, tellurates, chromates, molybdates, wolframates)
G : Molybdates, Wolframates and Niobates
B : With additional anions and/or H2O
mindat.org URL:http://www.mindat.org/min-29041.html
Please feel free to link to this page.
X-Ray Powder Diffraction:
d-spacingIntensity
3.112 (10)
5.75 (7)
6.25 (4)
3.724 (3)
2.507 (3b)
10.5 (2)
4.19 (2)
4.13 (2b)
2.663 (2b)
Comments:Only strongest lines are given in above list.

Chemical Properties of UM1999-38-WO:CrV

Formula:
V, Cr, W, O, H [V:Cr:W ratio about· 2:1:3]
All elements listed in formula:Cr, H, O, V, W

Relationship of UM1999-38-WO:CrV to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
7.GB.05Lindgrenite
Cu
 
3
[OH|MoO
 
4
]
 
2
7.GB.10Szenicsite
Cu
 
3
(MoO
 
4
)(OH)
 
4
7.GB.15Cuprotungstite
Cu
 
2
[(OH)
 
2
|WO
 
4
]
7.GB.20Phyllotungstite
Ca
 
x
[(W,Fe)(O,OH)
 
3
]·yH
 
2
O
7.GB.25Rankachite
(V
4+
 
,V
5+
 
)(W
6+
 
,Fe
3+
 
)
 
2
O
 
8
(OH)•(Ca
 
x
H
 
2
O
 
y
) with x ~ 0.5, y ~ 2.
7.GB.30Ferrimolybdite
Fe
 
2
[MoO
 
4
]
 
3
 · nH
 
2
O
7.GB.35Anthoinite
WAlO
 
3
(OH)
 
3
 (?)
7.GB.35Mpororoite
AlWO
 
3
(OH)
 
3
·2H
 
2
O
7.GB.40Obradovicite
H
 
4
(K,Na)CuFe
 
2
AsO
 
4
(MoO
 
4
)
 
5
·12H
 
2
O
7.GB.45Mendozavilite
Na(Ca,Mg)
 
2
[Fe
 
6
(PO
 
4
)
 
2
(PMo
 
11
O
 
39
)(OH,Cl)
 
10
]·33H
 
2
O
7.GB.45Paramendozavilite
NaAl
 
4
[Fe
 
7
(PO
 
4
)
 
5
(PMo
 
12
O
 
40
)(OH)
 
16
]·56H
 
2
O

Other Names for UM1999-38-WO:CrV

Synonyms:
UM1999-38Unnamed (V-Cr-W Oxide)
Other Languages:

Other Information

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 UM1999-38-WO:CrV

Reference List:U. Kolitsch (1999): Ein neues, Vanadium, Chrom und Wolfram enthaltendes Mineral aus einer Rankachit-Paragenese von der Grube Clara im mittleren Schwarzwald. Aufschluss 50, 23-32. (in German)

Internet Links for UM1999-38-WO:CrV

Search Engines:
  • Look for UM1999-38-WO:CrV on Google
  • Look for UM1999-38-WO:CrV images on Google
    • Mineral Dealers:
  • Buy from David K Joyce minerals
  • Lapis Mineral Magazin
  • Rare and Unusual minerals at Mineralogical Research Company
  • Search for - UM1999-38-WO:CrV - on e-Rocks Mineral Sales & Auctions
  • Fine Minerals from Dan Weinrich Minerals
  • SpiriferMinerals.com - high quality specimens
  • Buy minerals from Mineralium.com
  • Fabre Minerals - search for UM1999-38-WO:CrV specimens
  • rare and unusual minerals mainly crystallized
  • Buy fine minerals and gemstones from Pala International
  • The Arkenstone - Fine Minerals
  • Edwards Minerals - Fine Specimens
    • Jobs:
  • Mining & Geology Jobs

    • Page Sponsor

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

    Localities for UM1999-38-WO:CrV

    Hide Locality List
    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.
    Germany
     
    • Baden-Württemberg
      • Black Forest
        • Wolfach
          • Oberwolfach
            • Rankach valley
    		U. Kolitsch (1999): Ein neues, Vanadium, Chrom und Wolfram enthaltendes Mineral aus einer Rankachit-Paragenese von der Grube Clara im mittleren Schwarzwald. Aufschluss 50, 23-32. (in German); WALENTA, K. (1999): Neue Mineralfunde von der Grube Clara. 8. Folge, 2. Teil. Lapis 24 (12), 40-44
    Mineral and/or Locality
    Google
     
    www.mindat.org Web
    Copyright © Jolyon Ralph and Ida Chau 1993-2009. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them.Further information contact the 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 hundreds of members and supporters. If you would like to add information to improve the quality of our database, then click here to register. Current server date and time: 16th Oct 2009 09:31:04