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Varlamoffite

Big Photo

Cligga Head, Perranzabuloe, St Agnes District, Cornwall, England, UK
© Ian Jones

Show Varlamoffite Photos (8)
Formula:
(Sn,Fe)(O,OH)
 
2
Colour:YellowHardness:6 - 6½
Name:Named after N. Varlamoff.


Rutile Group

Previously considered a variety of Cassiterite - probably not.

Classification of Varlamoffite

IMA status:Questionable/Doubtful
Strunz 8th edition ID:4/F.18-10
Nickel-Strunz 10th (pending) edition ID:4.DB.05

4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
D : Metal: Oxygen = 1:2 and similar
B : With medium-sized cations; chains of edge-sharing octahedra
Dana 8th edition ID:4.4.2.1

4 : SIMPLE OXIDES
4 : AX2
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Type Occurrence of Varlamoffite

Type Locality:Kalima, Maniema, Democratic Republic of Congo (Zaïre)

Physical Properties of Varlamoffite

Lustre:Waxy, Earthy
Colour:Yellow
Streak:Light yellow
Hardness (Mohs):6 - 6½

Chemical Properties of Varlamoffite

Formula:
(Sn,Fe)(O,OH)
 
2
Essential elements:O, Sn
All elements listed in formula:Fe, H, O, Sn

Relationship of Varlamoffite to other Species

Related Minerals - Nickel-Strunz Grouping):
4.DB.05Argutite
GeO
 
2
4.DB.05Cassiterite
SnO
 
2
4.DB.05Plattnerite
PbO
 
2
4.DB.05Pyrolusite
MnO
 
2
4.DB.05Rutile
TiO
 
2
4.DB.05Tripuhyite
Fe
3+
 
Sb
5+
 
O
 
4
4.DB.05Tugarinovite
MoO
 
2
4.DB.10Byströmite
MgSb
 
2
O
 
6
4.DB.10Tapiolite-(Fe)
(Fe,Mn)(Ta,Nb)
 
2
O
 
6
4.DB.10Tapiolite-(Mn)
(Mn,Fe)(Ta,Nb)
 
2
O
 
6
4.DB.10Ordoñezite
ZnSb
 
2
O
 
6
4.DB.15Akhtenskite
ε-Mn
4+
 
O
 
2
4.DB.15Nsutite
(Mn
4+
 
,Mn
2+
 
)(O,OH)
 
2
4.DB.15Paramontroseite
VO
 
2
4.DB.15Ramsdellite
Mn
4+
 
O
 
2
4.DB.20Scrutinyite
alpha-PbO
 
2
4.DB.25Ishikawaite
U
4+
 
Fe
2+
 
Nb
 
2
O
 
8
4.DB.25Ixiolite
(Ta,Nb,Sn,Fe,Mn)
 
4
O
 
8
4.DB.25Samarskite-(Y)
(Y,Fe
3+
 
,Fe
2+
 
,U,Th,Ca)
 
2
(Nb,Ta)
 
2
O
 
8
4.DB.25Srilankite
Ti
 
2
ZrO
 
6
4.DB.25Yttrocolumbite-(Y)
Y(U
4+
 
,Fe
2+
 
)Nb
 
2
O
 
8
4.DB.25Calciosamarskite
(Ca,Fe
3+
 
,Y)
 
2
(Nb,Ta,Ti)
 
2
O
 
8
4.DB.25Iwashiroite-(Y)
Y(Ta,Nb)O
 
4
4.DB.25Samarskite-(Yb)
(Yb,Fe
3+
 
)
 
2
(Nb,Ta)
 
2
O
 
8
4.DB.25Písekite-(Y)
4.DB.30Ferberite
FeWO
 
4
4.DB.30Hübnerite
MnWO
 
4
4.DB.30Sanmartinite
(Zn,Fe)WO
 
4
4.DB.30Krasnoselskite
CoWO
 
4
4.DB.35Columbite-(Fe)
FeNb
 
2
O
 
6
4.DB.35Tantalite-(Fe)
FeTa
 
2
O
 
6
4.DB.35Columbite-(Mn)
(Mn,Fe)(Nb,Ta)
 
2
O
 
6
4.DB.35Tantalite-(Mn)
MnTa
 
2
O
 
6
4.DB.35Columbite-(Mg)
(Mg,Fe,Mn)(Nb,Ta)
 
2
O
 
6
4.DB.35Qitianlingite
(Fe,Mn)
 
2
(Nb,Ta)
 
2
WO
 
10
4.DB.35Magnocolumbite
4.DB.35Tantalite-(Mg)
(Mg,Fe
2+
 
)(Ta,Nb)
 
2
O
 
6
4.DB.40Ferrowodginite
FeSnTa
 
2
O
 
8
4.DB.40Lithiotantite
Li(Ta,Nb)
 
3
O
 
8
4.DB.40Lithiowodginite
LiTa
 
3
O
 
8
4.DB.40Titanowodginite
MnTiTa
 
2
O
 
8
4.DB.40Wodginite
Mn(Sn,Ta)Ta
 
2
O
 
8
4.DB.40Ferrotitanowodginite
Fe
2+
 
TiTa
 
2
O
 
8
4.DB.45Tivanite
VTiO
 
3
(OH)
4.DB.50Carmichaelite
(Ti,Cr,Fe)[O
 
2-x
(OH)
 
x
]
4.DB.55Alumotantite
AlTaO
 
4
4.DB.60Biehlite
((Sb,As)O)
 
2
[MoO
 
4
]

Other Names for Varlamoffite

Synonyms:
Souxite
German names:
SouxitVarlamoffit
Spanish names:
SouxitaVarlamoffita

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 Varlamoffite

Reference List:American Mineralogist (1949): 34: 618.

Mineralogicheskii Zhurnal, Kiev (1993): 15: 94-101.

American Mineralogist (1995): 80: 850.

Internet Links for Varlamoffite

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    Localities for Varlamoffite

    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.
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    (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.
    Algeria
     
    • Tamanghasset Province
      • Ahaggar Mts (Hoggar Mts)
    Bolivia
     
    • Potosí Department
      • Potosí City
    		No reference listed
      • Sud Chichas Province
        • Atocha-Quechisla District
    		Salomon Rivas y Federico Ahlfeld (1998) Los Minerales de Bolivia y sus Parajes. (Santa Cruz)
    China
     
    • Inner Mongolia Autonomous Region
      • Chifeng (Ulanhad) League
        • Linxi Co.
    		http://wrgis.wr.usgs.gov/open-file/of03-220/DATABASE/lode_deposits.txt
    • Yunnan Province
      • Honghe Autonomous Prefecture
        • Gejiu Co.
          • Gejiu Sn-polymetallic deposit
            • Western Sub-district
    		Chen, J., Halls, C., and Stanley, C.J. (1992): Chinese Journal of Geochemistry 11(2), 140-155.
    Democratic Republic of Congo (Zaïre)
     
    • Kivu
    • Maniema
    		[Clark, 1993 - "Hey's Mineral Index"]
    France
     
    • Auvergne
      • Allier
        • Ebreuil
          • Echassières
    		G. Aubert : "Les coupoles granitiques de Montebras et d'Echassières (Massif Central Français) et la genèse de leur minéralisations (BRGM, 1969)
    • Limousin
      • Creuse
        • Boussac
          • Montebras-en-Soumans
    		No reference listed
      • Haute-Vienne
        • Nantiat
          • Vaulry
    		P. Devismes : "Atlas photographique des minéraux d'alluvions", BRGM, 1978.
    • Pays de Loire
      • Loire-Atlantique
        • Nozay
    		P. Devismes : "Atlas photographique des minéraux d'alluvions", BRGM, 1978.
    Germany
     
    • Baden-Württemberg
      • Black Forest
        • Wolfach
          • Oberwolfach
            • Rankach valley
    		BLAß, G. & GRAF, H. W. (1996): Neue Mineralienfunde aus dem Siegerland und von der Grube Clara im Schwarzwald. - Mineralien-Welt 7 (4), 14-16 (in German); WALENTA, K. (1997): Neue Mineralfunde von der Grube Clara 7. Folge. - Lapis 22 (11), 37-47. (in German)
    Japan
     
    • Honshu Island
      • Kinki Region
        • Kyoto Prefecture
          • Kameoka City
    		Matsubara, S. (2002) Catalogue of Japanese Minerals (National Science Museum)
    Kyrgyzstan
     
    • Issyk-Kul'skaya Oblast
      • Inyl'chek Range
    Mongolia
     
    • Modotin
    		Petr Paulis, Die Zinn-Wolfram Lagerstätte Modoto (Bajan Mod) in der Mongolei, Mineralien Welt 6/95 p47-55
    Morocco
     
    • Souss-Massa-Draâ Region
      • Ouarzazate Province
        • El Hammam (El Hamman)
    		Ph. M. Sonnet : "Burtite, Calcium Hexahydrostannate, a New Mineral from El Hamman, Central Morocco", Canadian Mineralogist, Vol. 19, 1981, pp. 397-401.
    Portugal
     
    • Vila Real District
      • Peso da Régua
    Russia
     
    • Far-Eastern Region
      • Primorskiy Kray
        • Dal'negorsk (Dalnegorsk)
          • Kavalerovo Mining District
    		N.V., Gorelikova analytical data
    Tajikistan
     
    • Viloyati Sogd (Viloyati Sughd; Viloyati Khodzhent; Viloyati Leninabad)
      • Zeravshan Range
        • Kaznok Valley
          • Pendzhikent
    UK
     
    • England
      • Cornwall
        • Callington District
          • Callington
    		No reference listed
          • Gunnislake Area
    		No reference listed
    Weiss, S., Green, D.H., Hooper, J.J. & Elton, N. (2007): Erzgänge und "alpine " klüfte: Die Mineralien des Hingston Quarry, Calstock, Cornwall. LAPIS 32 (11), 13-25
        • Camborne - Redruth - St Day District
          • Gwennap - St Day Area
            • St Day
    		No reference listed
        • Mount's Bay District
          • St Hilary
    		No reference listed
        • St Agnes District
          • Perranzabuloe
    No reference listed
          • St Agnes
            • West Wheal Kitty group
    		No reference listed
        • St Austell District
          • Lanivet Area
            • Lanivet
    		No reference listed
          • Luxulyan Area (Luxulian Area)
            • Hensbarrow Downs
              • Bugle
    		No reference listed
              • Stenalees
    		No reference listed
    USA
     
    • New Mexico
      • Catron Co.
        • Taylor Creek District
          • Sawmill Creek
    		NMGS 37th Field Conference
    • South Dakota
      • Pennington Co.
        • Keystone District
          • Keystone
    		Rocks & Minerals: 57: 160 &/or 60: 110 & 112.
    Mineral and/or Locality
    Google
     
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