Mindat Logo
Home Page Log In Message Board The Mindat Directory
Register Search Pages Mineral Chatroom The Mindat Store

Lenaite

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

Privol'noye mine, Saha Republic (Sakha Republic; Yakutia), Eastern-Siberian Region, Russia
© 2008, JGW




Formula:
AgFeS
 
2
System:TetragonalColour:Steel Grey
Lustre:MetallicHardness:4½
Member of:Chalcopyrite Group
Name:For the river Lena, Russia


Chalcopyrite Group.

Classification of Lenaite

IMA status:Approved
Strunz 8th edition ID:2/C.03-25
Nickel-Strunz 10th (pending) edition ID:2.CB.10a

2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
C : Metal Sulfides, M: S = 1: 1 (and similar)
B : With Zn, Fe, Cu, Ag, etc.
Dana 8th edition ID:2.9.1.5

2 : SULFIDES
9 : AmBnXp, with (m+n):p = 1:1
mindat.org URL:http://www.mindat.org/min-2372.html
Please feel free to link to this page.

Type Occurrence of Lenaite

Type Locality:Khachakchan Ag-Sb-Hg deposit, Khachakchan ore cluster, Verkhoyansk Silver Province, Verkhoyansk Fold Belt, Saha Republic (Sakha Republic; Yakutia), Eastern-Siberian Region, Russia

Physical Properties of Lenaite

Lustre:Metallic
Colour:Steel Grey
Streak:Dark grey to black
Hardness (Mohs):4½
Hardness (Vickers):VHN10=285 kg/mm2

Crystallography of Lenaite

Crystal System:Tetragonal
Class (H-M):4 2m - Scalenohedral
Space Group:I4 2d
Cell Parameters:a = 5.4371Å, c = 10.8479Å
Ratio:a:c = 1 : 1.995
Unit Cell Volume:V 320.69 ų
Z:4

Optical Data of Lenaite

Type:Anisotropic
Anisotropism:moderate, in yellowish tints
Bireflectance:None
Reflectivity:
471.1 nmR1=28.2%R2= 30.6%
548.3 nmR1=31.8%R2= 35.8%
586.6 nmR1=32.8%R2= 36.5%
652.3 nmR1=30.9%R2= 35.0%


Graph shows reflectance levels at different wavelengths (in nm). Peak reflectance is 36.5%.
R1 shown in black, R2 shown in red
Colour in reflected light:Greyish white
Pleochroism:Non-pleochroic

Chemical Properties of Lenaite

Formula:
AgFeS
 
2
Essential elements:Ag, Fe, S
All elements listed in formula:Ag, Fe, S

Relationship of Lenaite to other Species

Member of:Chalcopyrite Group
Other Members of Group:

- +
Chalcopyrite
CuFeS
 
2
Eskebornite
CuFeSe
 
2
Gallite
CuGaS
 
2
Laforêtite
AgInS
 
2
Roquesite
CuInS
 
2
Related Minerals - Nickel-Strunz Grouping):

- +
2.CB.05aColoradoite
HgTe
2.CB.05aHawleyite
CdS
2.CB.05aMetacinnabar
HgS
2.CB.05cPolhemusite
(Zn,Hg)S
2.CB.05bSakuraiite
(Cu,Zn,Fe)
 
3
(In,Sn)S
 
4
2.CB.05aSphalerite
ZnS
2.CB.05aStilleite
ZnSe
2.CB.05aTiemannite
HgSe
2.CB.05UM1998-15-S:CuFeZn
Cu
 
2
Fe
 
3
Zn
 
5
S
 
10
2.CB.05aRudashevskyite
(Fe,Zn)S
2.CB.10aChalcopyrite
CuFeS
 
2
2.CB.10aEskebornite
CuFeSe
 
2
2.CB.10aGallite
CuGaS
 
2
2.CB.10bHaycockite
Cu
 
4
Fe
 
5
S
 
8
2.CB.10bMooihoekite
Cu
 
9
Fe
 
9
S
 
16
2.CB.10bPutoranite
Cu
 
9
(Fe,Ni)
 
9
S
 
16
2.CB.10aRoquesite
CuInS
 
2
2.CB.10bTalnakhite
Cu
 
9
(Fe,Ni)
 
8
S
 
16
2.CB.10aLaforêtite
AgInS
 
2
2.CB.15aČernýite
Cu
 
2
(Cd,Zn,Fe)SnS
 
4
2.CB.15aFerrokesterite
Cu
 
2
(Fe,Zn)SnS
 
4
2.CB.15aHocartite
Ag
 
2
(Fe
2+
 
,Zn)SnS
 
4
2.CB.15aIdaite
Cu
 
5
FeS
 
6
2.CB.15aKesterite
Cu
 
2
(Zn,Fe)SnS
 
4
2.CB.15aKuramite
Cu
 
3
SnS
 
4
2.CB.15bMohite
Cu
 
2
SnS
 
3
2.CB.15aPirquitasite
Ag
 
2
ZnSnS
 
4
2.CB.15aStannite
Cu
 
2
(Fe,Zn)SnS
 
4
2.CB.15cStannoidite
Cu
+
6
Cu
2+
2
(Fe
2+
 
,Zn)
 
3
Sn
 
2
S
 
12
2.CB.15aVelikite
(Cu,Hg)
 
11
Sn
 
4
S
 
16
2.CB.15cUM2006-11-S:CuFeGeZn
Cu
 
8
(Fe,Zn)
 
3
Ge
 
2
S
 
12
 (?)
2.CB.20Chatkalite
Cu
 
6
FeSn
 
2
S
 
8
2.CB.20Mawsonite
Cu
 
6
Fe
 
2
SnS
 
8
2.CB.30Colusite
Cu
 
26
V
 
2
(As,Sn,Sb)
 
6
S
 
32
2.CB.30Germanite
Cu
 
13
Fe
 
2
Ge
 
2
S
 
16
2.CB.30Germanocolusite
Cu
 
26
V
 
2
(Ge,As)
 
6
S
 
32
2.CB.30Nekrasovite
Cu
 
26
V
 
2
(Sn,As,Sb)
 
6
S
 
32
2.CB.30Stibiocolusite
Cu
 
13
V
 
4
(Sb,Sn,As)
 
3
S
 
16
2.CB.30Ovamboite
Cu
 
20
(Fe,Cu,Zn)
 
6
W
 
2
Ge
 
6
S
 
32
2.CB.30Maikainite
Cu
 
20
(Fe,Cu)
 
6
Mo
 
2
Ge
 
6
S
 
32
2.CB.35aHemusite
Cu
 
6
SnMoS
 
8
2.CB.35aKiddcreekite
Cu
 
6
SnWS
 
8
2.CB.35aPolkovicite
(Fe,Pb)
 
3
(Ge,Fe)
 
1-x
S
 
4
2.CB.35aRenierite
(Cu,Zn)
 
11
(Ge,As)
 
2
Fe
 
4
S
 
16
2.CB.35aVinciennite
Cu
+
7
Cu
2+
3
Fe
2+
2
Fe
3+
2
Sn(As,Sb)S
 
16
2.CB.35aMorozeviczite
(Pb,Fe)
 
3
Ge
 
1-x
S
 
4
2.CB.35bCatamarcaite
Cu
 
6
GeWS
 
8
2.CB.40Lautite
CuAsS
2.CB.45Cadmoselite
CdSe
2.CB.45Greenockite
CdS
2.CB.45Wurtzite
(Zn,Fe)S
2.CB.45Rambergite
MnS
2.CB.55aCubanite
CuFe
 
2
S
 
3
2.CB.55bIsocubanite
CuFe
 
2
S
 
3
2.CB.60Picotpaulite
TlFe
 
2
S
 
3
2.CB.60Raguinite
TlFeS
 
2
2.CB.65Argentopyrite
AgFe
 
2
S
 
3
2.CB.65Sternbergite
AgFe
 
2
S
 
3
2.CB.70Sulvanite
Cu
 
3
VS
 
4
2.CB.75Vulcanite
CuTe
2.CB.80Empressite
AgTe
2.CB.85Muthmannite
AuAgTe
 
2

Other Names for Lenaite

Synonyms:
IMA1994-008
Other Languages:
German:Lenait
Russian:Ленаит
Spanish:Lenaita

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 Lenaite

Reference List:

- +
Mineralogical Record 27: 464.

Amuzinskii, V.A., Zhdanov, Yu.Ya., Zayakina, N.V., and Leskova, N.V. (1995) Lenaite, AgFeS2, a new mineral species. Zapiski Vserossiyskogo Mineralogicheskogo Obshchestva (1995): 124(5):85-91 (in Russian).

Bindi, L., Spry, P.G., Pratesi, G. (2006): Lenaite from the Gies gold–silver telluride deposit, Judith Mountains, Montana, U.S.A.: occurrence, composition, and crystal structure. Canadian Mineralogist: 44: 207-212.

Internet Links for Lenaite

Search Engines:
  • Look for Lenaite on Google
  • Look for Lenaite images on Google
    • External Links:
  • Look for Lenaite on Webmineral
  • Look for Lenaite on Athena Mineralogy[Link Broken?]
  • Look for Lenaite on Mineralien Atlas
  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Lenaite details from Handbook of Mineralogy (PDF)
    • Mineral Dealers:
  • Fine Minerals from Weinrich Minerals, Inc.
  • Buy from David K Joyce minerals
  • Search for minerals at Heliodor
  • Pricedownminerals.com - Reverse Auctions and Shop
  • By minerals from YourMineralCollection
  • Fabre Minerals - search for Lenaite specimens
  • High-end worldwide specimens & outstanding customer service
  • Rare and Unusual minerals at Mineralogical Research Company
  • Buy RARE Minerals from Rocks of Africa
  • Edwards Minerals - Fine Specimens
  • SpiriferMinerals.com - high quality low prices
  • The Arkenstone - Fine Minerals
    • Jobs:
  • Mining & Geology Jobs

    • Localities for Lenaite

    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.
    Hide Locality List
    (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.
    Japan
     
    • Honshu Island
      • Tohoku Region
        • Yamagata Prefecture
          • Yonezawa City
    		Dr. Kameki Kinoshita collection (curated at Geological Survey of Japan)
    Russia
     
    • Eastern-Siberian Region
      • Saha Republic (Sakha Republic; Yakutia)
    		unpublished SEM/EDS analysis
        • Verkhoyansk Fold Belt
          • Verkhoyansk Silver Province
            • Khachakchan ore cluster
    		Amuzinskii et al (1995), Zapiski Vserossiyskogo Mineralogicheskogo Obshchestva: 124(5): 85-91.; Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow
    Pavlova, G.G., and Borisenko, A.S. (2009): Ore Geology Reviews 35, 164-185.
    USA
     
    • Montana
      • Fergus Co.
        • Warm Springs District (Gilt Edge District; Gold Hill District; Maiden District)
          • Cone Butte Sub District
    		Bindi, L., Spry, P.G., Pratesi, G. (2006): Lenaite from the Gies gold–silver telluride deposit, Judith Mountains, Montana, U.S.A.: occurrence, composition, and crystal structure. Canadian Mineralogist 44, 207-212
    Mineral and/or Locality
    Search Google
     
    Copyright © Jolyon Ralph and Ida Chau 1993-2012. 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. 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: 16th Jan 2012 18:42:34
    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