2.CC.05

2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
C : Metal Sulfides, M: S = 1: 1 (and similar)
C : With Ni, Fe, Co, PGE, etc.

Dana 8th ed.:

2.8.11.9

2 : SULFIDES
8 : A_mX_p, with m:p = 1:1

Hey's CIM Ref.:

3.11.33

3 : Sulphides, Selenides, Tellurides, Arsenides and Bismuthides (except the arsenides, antimonides and bismuthides of Cu, Ag and Au, which are included in Section 1)
11 : Sulphides etc. of Ni

Physical Properties of LangisiteHide

Lustre:

Metallic

Transparency:

Opaque

Colour:

Pink

Hardness:

6 - 6½ on Mohs scale

Density:

8.17 g/cm³ (Calculated)

Optical Data of LangisiteHide

Type:

Anisotropic

Anisotropism:

Medium, bluish-grey to light brown

Bireflectance:

Very weak

Reflectivity:

470nm	R₁=45.4%	R₂=46.4%
546nm	R₁=46.4%	R₂=47.1%
589nm	R₁=47.5%	R₂=48.2%
650nm	R₁=49.9%	R₂=51.0%

Graph shows reflectance levels at different wavelengths (in nm). Top of box is 100%. Peak reflectance is 51.0%.
R₁ shown in black, R₂ shown in red

Colour in reflected light:

pinkish-tan

Pleochroism:

Weak

Chemical Properties of LangisiteHide

Formula:

CoAs

May contain minor Ni replacing Co.

Elements listed:

As, Co - search for minerals with similar chemistry

Crystallography of LangisiteHide

Crystal System:

Hexagonal

Class (H-M):

6 - Pyramidal

Space Group:

P6₃

Cell Parameters:

a = 3.53 Å, c = 5.12 Å

Ratio:

a:c = 1 : 1.45

Unit Cell V:

55.25 Å³ (Calculated from Unit Cell)

Morphology:

Minute irregular grains and lamellae.

Type Occurrence of LangisiteHide

Type Locality:

ⓘ Langis Mine (Casey Cobalt ; Casey-Seneca), Casey Township, Cobalt Area, Cobalt-Gowganda region, Timiskaming District, Ontario, Canada

Place of Conservation of Type Material:

Canadian Geological Survey, Ottawa, 12140.
Royal Ontario Museum, Toronto, Canada.

Associated Minerals at Type Locality:

Safflorite

Synonyms of LangisiteHide

IMA1968-023

Other Language Names for LangisiteHide

German:Langisit

Russian:Лангисит

Spanish:Langisita

Relationship of Langisite to other SpeciesHide

Member of:

Nickeline Group

Other Members of this group:

Achávalite	FeSe	Hex. 6/mmm (6/m 2/m 2/m) : P6₃/mmc
Breithauptite	NiSb	Hex. 6/mmm (6/m 2/m 2/m) : P6₃/mmc
Freboldite	CoSe	Hex. 6/mmm (6/m 2/m 2/m) : P6₃/mmc
Kotulskite	Pd(Te,Bi)_2-x (x ≈ 0.4)	Hex.
Nickeline	NiAs	Hex. 6/mmm (6/m 2/m 2/m) : P6₃/mcm
Sederholmite	beta-NiSe	Hex. 6/mmm (6/m 2/m 2/m) : P6₃/mmc
Sobolevskite	PdBi	Hex.
Stumpflite	PtSb	Hex.
Sudburyite	PdSb	Hex.
Vavřínite	Ni₂SbTe₂	Hex. 6/mmm (6/m 2/m 2/m) : P6₃/mmc
Zlatogorite	NiCuSb₂	Trig.

Related Minerals - Nickel-Strunz Grouping Hide

2.CC.	UM2007-26-S:CuFeIrNiPtRh	(Ir,Cu,Ni,Pt,Rh,Fe)₉S₁₁
2.CC.05	Achávalite	FeSe	Hex. 6/mmm (6/m 2/m 2/m) : P6₃/mmc
2.CC.05	Breithauptite	NiSb	Hex. 6/mmm (6/m 2/m 2/m) : P6₃/mmc
2.CC.05	Freboldite	CoSe	Hex. 6/mmm (6/m 2/m 2/m) : P6₃/mmc
2.CC.05	Kotulskite	Pd(Te,Bi)_2-x (x ≈ 0.4)	Hex.
2.CC.05	Nickeline	NiAs	Hex. 6/mmm (6/m 2/m 2/m) : P6₃/mcm
2.CC.05	Sederholmite	beta-NiSe	Hex. 6/mmm (6/m 2/m 2/m) : P6₃/mmc
2.CC.05	Sobolevskite	PdBi	Hex.
2.CC.05	Stumpflite	PtSb	Hex.
2.CC.05	Sudburyite	PdSb	Hex.
2.CC.05	Jaipurite	CoS	Hex.
2.CC.05	Zlatogorite	NiCuSb₂	Trig.
2.CC.10	Pyrrhotite	Fe_1-xS	Mon.
2.CC.10	Smythite	(Fe,Ni)_3+xS₄ (x=0-0.3)	Trig. 3m (3 2/m) : R3m
2.CC.10	Troilite	FeS	Hex. 6/mmm (6/m 2/m 2/m) : P6₃/mmc
2.CC.15	Cherepanovite	RhAs	Orth. mmm (2/m 2/m 2/m) : Pnma
2.CC.15	Modderite	(Co,Fe)As	Orth.
2.CC.15	Ruthenarsenite	(Ru,Ni)As	Orth.
2.CC.15	Westerveldite	(Fe,Ni,Co)As	Orth.
2.CC.20	Millerite	NiS	Trig. 3m : R3m
2.CC.20	Mäkinenite	γ-NiSe	Trig.
2.CC.20	UM1990-38-S:CuFeIrNiPtRh	(Ni,Fe,Rh,Cu,Ir,Pt)S
2.CC.25	Mackinawite	(Fe,Ni)₉S₈	Tet. 4/mmm (4/m 2/m 2/m) : P4/nmm
2.CC.30	Hexatestibiopanickelite	(Pd,Ni)(Sb,Te)	Hex.
2.CC.30	Vavřínite	Ni₂SbTe₂	Hex. 6/mmm (6/m 2/m 2/m) : P6₃/mmc
2.CC.35a	Braggite	(Pt,Pd,Ni)S	Tet.
2.CC.35b	Cooperite	PtS	Tet. 4/mmm (4/m 2/m 2/m) : P4₂/mmc
2.CC.35a	Vysotskite	(Pd,Ni)S	Tet.

Related Minerals - Dana Grouping (8th Ed.)Hide

2.8.11.1	Nickeline	NiAs	Hex. 6/mmm (6/m 2/m 2/m) : P6₃/mcm
2.8.11.2	Breithauptite	NiSb	Hex. 6/mmm (6/m 2/m 2/m) : P6₃/mmc
2.8.11.3	Sederholmite	beta-NiSe	Hex. 6/mmm (6/m 2/m 2/m) : P6₃/mmc
2.8.11.4	Hexatestibiopanickelite	(Pd,Ni)(Sb,Te)	Hex.
2.8.11.10	Freboldite	CoSe	Hex. 6/mmm (6/m 2/m 2/m) : P6₃/mmc

Related Minerals - Hey's Chemical Index of Minerals Grouping Hide

3.11.1	Heazlewoodite	Ni₃S₂	Trig. 3 2 : R3 2
3.11.2	Godlevskite	(Ni,Fe)₉S₈	Orth. 2 2 2 : C2 2 2
3.11.3	Millerite	NiS	Trig. 3m : R3m
3.11.4	Polydymite	Ni²⁺Ni³⁺₂S₄	Iso. m3m (4/m 3 2/m) : Fd3m
3.11.5	Vaesite	NiS₂	Iso. m3 (2/m 3) : Pa3
3.11.6	Shandite	Ni₃Pb₂S₂	Trig.
3.11.7	Donharrisite	Ni₃HgS₃	Mon. 2/m : B2/m
3.11.8	Violarite	Fe²⁺Ni³⁺₂S₄	Iso. m3m (4/m 3 2/m) : Fd3m
3.11.9	Pentlandite	(Fe_xNi_y)_Σ9S₈	Iso. m3m (4/m 3 2/m) : Fm3m
3.11.10	Bravoite	(Fe,Ni)S₂	Iso. m3 (2/m 3) : Pa3
3.11.11	Siegenite	CoNi₂S₄	Iso. m3m (4/m 3 2/m) : Fd3m
3.11.12	Fletcherite	Cu(Ni,Co)₂S₄	Iso. m3m (4/m 3 2/m) : Fd3m
3.11.13	Villamaninite	(Cu,Ni,Co,Fe)S₂	Tric.
3.11.14	Mäkinenite	γ-NiSe	Trig.
3.11.15	Sederholmite	beta-NiSe	Hex. 6/mmm (6/m 2/m 2/m) : P6₃/mmc
3.11.16	Trüstedtite	Ni₃Se₄	Iso.
3.11.17	Wilkmanite	Ni₃Se₄	Mon.
3.11.18	Kullerudite	NiSe₂	Orth. mmm (2/m 2/m 2/m) : Pnnm
3.11.19	Penroseite	(Ni,Co,Cu)Se₂	Iso. m3 (2/m 3) : Pa3
3.11.20	Tyrrellite	Cu(Co³⁺,Ni³⁺)₂Se₄	Iso. m3m (4/m 3 2/m) : Fd3m
3.11.21	Imgreite	NiTe (?)	Hex.
3.11.22	Melonite	NiTe₂	Trig. 3m (3 2/m) : P3m1
3.11.23	Kitkaite	NiTeSe	Trig. 3m (3 2/m) : P3m1
3.11.24	Dienerite	Ni₃As	Iso. 4 3m : I4 3d
3.11.25	Orcelite	Ni_5-xAs₂, x ~ 0.25	Hex. 6mm : P6₃mc
3.11.26	Maucherite	Ni₁₁As₈	Tet. 4 2 2 : P4₁ 2₁ 2
3.11.27	Nickeline	NiAs	Hex. 6/mmm (6/m 2/m 2/m) : P6₃/mcm
3.11.28	Rammelsbergite	NiAs₂	Orth. mmm (2/m 2/m 2/m) : Pnnm
3.11.29	Pararammelsbergite	NiAs₂	Orth. mmm (2/m 2/m 2/m) : Pbca
3.11.30	Nickelskutterudite	(Ni,Co,Fe)As₃	Iso. m3 (2/m 3) : Im3
3.11.31	Oregonite	Ni₂FeAs₂	Hex.
3.11.32	Westerveldite	(Fe,Ni,Co)As	Orth.
3.11.34	Gersdorffite	NiAsS	Iso. m3 (2/m 3) : Pa3
3.11.35	Jolliffeite	NiAsSe	Iso. m3 (2/m 3) : Pa3
3.11.36	Breithauptite	NiSb	Hex. 6/mmm (6/m 2/m 2/m) : P6₃/mmc
3.11.38	Ullmannite	NiSbS	Iso. 2 3 : P2₁ 3
3.11.39	Willyamite	CoSbS

Other InformationHide

Health Risks:

No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for LangisiteHide

Reference List:

Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)

Petruk, W., Harris, D.C., Stewart, J.M. (1969) Langisite, a new mineral, and the rare minerals cobalt pentlandite, siegenite, parkerite, and bravoite from the Langis mine, Cobalt-Gowganda area, Ontario, Canada. The Canadian Mineralogist: 9: 597-616.

Petruk, W., Harris, D.C., Stewart, J.M. (1971) Characteristics of the arsenides, sulpharsenides, and antimonides. The Canadian Mineralogist: 11: 150-186.

Fleischer, M. (1972) New mineral names. American Mineralogist: 57: 1909-1914.

Fjellvåg, H., Selte, K., Stave, F.E. (1984) On the structural and magnetic properties of Co1-tNitAs and CoAs1-xSbx. Acta Chemica Scandinavica A: 38: 687-691.

Internet Links for LangisiteHide

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https://www.mindat.org/min-2321.html
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Raman and XRD data at RRUFF project

References and PDF downloads at RRUFF project

American Mineralogist Crystal Structure Database

Handbook of Mineralogy page PDF

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Localities for LangisiteHide

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 locality has map coordinates listed.

- This locality has estimated coordinates. ⓘ - Click for 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 (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.


Canada
Ontario Timiskaming District Cobalt-Gowganda region ⓘ Cobalt area	Grice, Joel D. (1989) Cobalt: the Silver City. In: Famous mineral localities of Canada. Published by Fitzhenry & Whiteside Limited & the National Museum of Natural Sciences, 190 pages: 85-91; 159-161.
Casey Township ⓘ Langis Mine (Casey Cobalt ; Casey-Seneca) (TL)	PETRUK, W., HARRIS, D.C. & STEWART, J.M. (1969): Langisite, a new mineral, and the rare minerals cobalt pentlandite, siegenite, parkerite and bravoite from the Langis mine, CobaltBGowganda area, Ontario. Canadian Mineralogist 9, 597-616.

Czech Republic
Liberec Region ⓘ North Bohemian Uranium District	Scharm, B.: Přehled minerálů nalezených v oblasti uranových koncentrací v severočeské křídě. Bulletin mineralogicko-petrografického oddělení Národního muzea v Praze, 1995, roč. 3, s. 169-172.

Greece
South Aegean Tinos Tinos Island ⓘ Apigania Bay	Tombros, S.F. (2008): Later stages of evolution of an epithermal system: Au-Ag mineralization at Apigania Bay, Tinos, Island, Cyclades, Hellas, Greece. Min.Pet. (in press)

UK
England Devon East Devon Budleigh Salterton ⓘ Littleham Bay	from XRD and EPMA results - B. Smith

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Langisite

About LangisiteHide

Classification of LangisiteHide