Johan, Z. (1961) Paxite - Cu2As3, a new copper arsenide from Černý Důl in the Giant Mts. (Krkonoše). Acta Universitatis Carolinae - Geologica: 2: 77-86.

Classification of PaxiteHide

Strunz-mindat (2024):

2.EB.15c

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

Dana 8th ed.:

2.12.5.2

2 : SULFIDES
12 : A_mB_nX_p, with (m+n):p = 1:2

Hey's CIM Ref.:

1.35

1 : Elements and Alloys (including the arsenides, antimonides and bismuthides of Cu, Ag and Au)

Mineral SymbolsHide

As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.

Symbol	Source	Reference
Pax	IMA–CNMNC	Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43

Physical Properties of PaxiteHide

Lustre:

Metallic

Transparency:

Opaque

Colour:

Grey

Comment:

Light steel-gray on a fresh surface, but soon turns dark and finally becomes black

Streak:

Black

Hardness:

3½ on Mohs scale

Hardness:

VHN₂₅=146 kg/mm² - Vickers

Cleavage:

Perfect
{010}

Density:

5.4 g/cm³ (Measured) 5.97 g/cm³ (Calculated)

Optical Data of PaxiteHide

Anisotropism:

Very strong; in pale gray-green and dark brown with violet tint.

Colour in reflected light:

very pale gray.

Chemistry of PaxiteHide

Mindat Formula:

CuAs₂

Elements listed:

As, Cu - search for minerals with similar chemistry

Crystallography of PaxiteHide

Crystal System:

Monoclinic

Class (H-M):

2/m - Prismatic

Space Group:

P2₁/b

Setting:

P2₁/c

Cell Parameters:

a = 5.839(2) Å, b = 5.111(2) Å, c = 8.084(3) Å
β = 99.7°

Ratio:

a:b:c = 1.142 : 1 : 1.582

Unit Cell V:

237.80 Å³ (Calculated from Unit Cell)

Twinning:

Polysynthetic along {010}.

X-Ray Powder DiffractionHide

Powder Diffraction Data:

d-spacing	Intensity
3.604 Å	(70)
3.295 Å	(50)
3.144 Å	(100)
2.616 Å	(100)
2.495 Å	(90)
1.795 Å	(70)
1.687 Å	(60)

Geological EnvironmentHide

Paragenetic Mode(s):

Paragenetic Mode	Earliest Age (Ga)
High-𝑇 alteration and/or metamorphism
33 : Minerals deposited by hydrothermal metal-rich fluids (see also [#12])

Type Occurrence of PaxiteHide

Type Locality:

ⓘ Černý Důl, Trutnov District, Hradec Králové Region, Czech Republic

General Appearance of Type Material:

massive

Place of Conservation of Type Material:

Charles University, Prague, Czech Republic.
National School of Mines, Paris, France.
National Museum of Natural History, Washington, D.C., USA, 162605.

Associated Minerals at Type Locality:

Novákite

Koutekite

Arsenic

Reference:

Johan, Z. (1961) Paxite - Cu2As3, a new copper arsenide from Černý Důl in the Giant Mts. (Krkonoše). Acta Universitatis Carolinae - Geologica: 2: 77-86.

Download:

http://rruff.info/rruff_1.0/uploads/AUCG2_77.pdf

Other Language Names for PaxiteHide

German:Paxit

Spanish:Paxita

Relationship of Paxite to other SpeciesHide

Structurally related to group(s):

Arsenopyrite Group

Common AssociatesHide

Associated Minerals Based on Photo Data:

1 photo of Paxite associated with Koutekite	Cu₅As₂
1 photo of Paxite associated with Nickeline	NiAs

Related Minerals - Strunz-mindat Grouping Hide

2.EB.	Iridarsenite	(Ir,Ru)As₂	Mon. 2/m : P2₁/b
2.EB.	Selenolaurite	RuSe₂	Iso. m3 (2/m 3) : Pa3
2.EB.	Andrieslombaardite	RhSbS	Iso. 2 3 : P2₁ 3
2.EB.	Kanatzidisite	(SbBiS₃)₂Te₂	Mon. 2/m : P2₁/m
2.EB.05a	Aurostibite	AuSb₂	Iso. m3 (2/m 3) : Pa3
2.EB.05b	Bambollaite	Cu(Se,Te)₂	Tet.
2.EB.05a	Cattierite	CoS₂	Iso. m3 (2/m 3) : Pa3
2.EB.05a	Erlichmanite	OsS₂	Iso. m3 (2/m 3) : Pa3
2.EB.05a	Fukuchilite	Cu₃FeS₈	Iso. m3 (2/m 3) : Pa3
2.EB.05a	Geversite	PtSb₂	Iso. m3 (2/m 3) : Pa3
2.EB.05a	Hauerite	MnS₂	Iso. m3 (2/m 3) : Pa3
2.EB.05a	Insizwaite	Pt(Bi,Sb)₂	Iso. m3 (2/m 3) : Pa3
2.EB.05a	Krut'aite	CuSe₂	Iso. m3 (2/m 3) : Pa3
2.EB.05a	Laurite	RuS₂	Iso. m3 (2/m 3) : Pa3
2.EB.05a	Penroseite	(Ni,Co,Cu)Se₂	Iso. m3 (2/m 3) : Pa3
2.EB.05a	Pyrite	FeS₂	Iso. m3 (2/m 3) : Pa3
2.EB.05a	Sperrylite	PtAs₂	Iso. m3 (2/m 3) : Pa3
2.EB.05a	Trogtalite	CoSe₂	Iso. m3 (2/m 3) : Pa3
2.EB.05a	Vaesite	NiS₂	Iso. m3 (2/m 3) : Pa3
2.EB.05a	Villamanínite	(Cu,Ni,Co,Fe)S₂	Tric.
2.EB.05a	Dzharkenite	FeSe₂	Iso. m3 (2/m 3) : Pa3
2.EB.05a	Gaotaiite	Ir₃Te₈	Iso. m3 (2/m 3) : Pa3
2.EB.05a v	Cayeuxite
2.EB.10b	Alloclasite	Co_1-xFe_xAsS	Mon. 2 : P2₁
2.EB.10d	Costibite	CoSbS	Orth. mm2 : Pmn2₁
2.EB.10a	Ferroselite	FeSe₂	Orth. mmm (2/m 2/m 2/m) : Pnnm
2.EB.10a	Frohbergite	FeTe₂	Orth. mmm (2/m 2/m 2/m) : Pnnm
2.EB.10c	Glaucodot	(Co_0.50Fe_0.50)AsS	Orth. mm2 : Pmn2₁
2.EB.10a	Kullerudite	NiSe₂	Orth. mmm (2/m 2/m 2/m) : Pnnm
2.EB.10a	Marcasite	FeS₂	Orth. mmm (2/m 2/m 2/m) : Pnnm
2.EB.10a	Mattagamite	CoTe₂	Orth. mmm (2/m 2/m 2/m) : Pnnm
2.EB.10e	Paracostibite	CoSbS	Orth. mmm (2/m 2/m 2/m) : Pbca
2.EB.10e	Pararammelsbergite	NiAs₂	Orth. mmm (2/m 2/m 2/m) : Pbca
2.EB.10f	Oenite	CoSbAs	Orth.
2.EB.10a	Petříčekite	CuSe₂	Orth. mmm (2/m 2/m 2/m) : Pnnm
2.EB.15a	Anduoite	(Ru,Os)As₂	Orth.
2.EB.15a	Clinosafflorite	CoAs₂	Mon. 2/m : P2₁/m
2.EB.15a	Löllingite	FeAs₂	Orth. mmm (2/m 2/m 2/m) : Pnnm
2.EB.15a	Nisbite	NiSb₂	Orth. mmm (2/m 2/m 2/m) : Pnnm
2.EB.15a	Omeiite	(Os,Ru)As₂	Orth.
2.EB.15a	Rammelsbergite	NiAs₂	Orth. mmm (2/m 2/m 2/m) : Pnnm
2.EB.15a	Safflorite	(Co,Ni,Fe)As₂	Orth. mmm (2/m 2/m 2/m) : Pnnm
2.EB.15b	Seinäjokite	(Fe,Ni)(Sb,As)₂	Orth.
2.EB.20	Arsenopyrite	FeAsS	Mon. 2/m : P2₁/b
2.EB.20	Gudmundite	FeSbS	Mon. 2/m : P2₁/b
2.EB.20	Osarsite	(Os,Ru)AsS	Mon.
2.EB.20	Ruarsite	(Ru,Os)AsS	Mon.
2.EB.25 va	Antimony-bearing Gersdorffite	Ni(As,Sb)S
2.EB.25	Cobaltite	CoAsS	Orth. mm2 : Pca2₁
2.EB.25	Gersdorffite	NiAsS	Iso. m3 (2/m 3) : Pa3
2.EB.25	Hollingworthite	(Rh,Pt,Pd)AsS	Iso. m3 (2/m 3) : Pa3
2.EB.25	Irarsite	(Ir,Ru,Rh,Pt)AsS	Iso. m3 (2/m 3) : Pa3
2.EB.25	Jolliffeite	NiAsSe	Iso. m3 (2/m 3) : Pa3
2.EB.25	Krutovite	NiAs₂	Iso. 2 3 : P2₁ 3
2.EB.25	Maslovite	PtBiTe	Iso. 2 3 : P2₁ 3
2.EB.25	Michenerite	PdBiTe	Iso. 2 3 : P2₁ 3
2.EB.25	Padmaite	PdBiSe	Iso. 4 3 2
2.EB.25	Platarsite	Pt(As,S)₂	Iso. m3 (2/m 3) : Pa3
2.EB.25	Testibiopalladite	PdSbTe	Iso.
2.EB.25	Tolovkite	IrSbS	Iso.
2.EB.25	Ullmannite	NiSbS	Iso. 2 3 : P2₁ 3
2.EB.25	Willyamite	CoSbS
2.EB.25	Changchengite	IrBiS	Iso. 2 3 : P2₁ 3
2.EB.25	Mayingite	IrBiTe	Iso. m3 (2/m 3) : Pa3
2.EB.25	Kalungaite	PdAsSe	Iso. m3 (2/m 3) : Pa3
2.EB.25	Milotaite	PdSbSe	Iso. 2 3 : P2₁ 3
2.EB.25	Paragersdorffite	Ni(As,S)₂	Iso. m3 (2/m 3) : Pa3
2.EB.25	Orthogersdorffite	NiAsS	Orth. mm2 : Pca2₁
2.EB.25	Kvačekite	NiSbSe	Iso. 2 3 : P2₁ 3
2.EB.30	Urvantsevite	Pd(Bi,Pb)₂	Tet. 4/mmm (4/m 2/m 2/m) : I4/mmm
2.EB.35	Rheniite	ReS₂	Tric. 1 : P1

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.

Internet Links for PaxiteHide

mindat.org URL:

https://www.mindat.org/min-3137.html
Please feel free to link to this page.

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External Links:

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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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References for PaxiteHide

Reference List:

Johan, Z. (1961) Paxite - Cu2As3, a new copper arsenide from Černý Důl in the Giant Mts. (Krkonoše). Acta Universitatis Carolinae - Geologica: 2: 77-86.

Fleischer, M. (1962) New mineral names. American Mineralogist: 47: 1482-1485.

Johan, Z. (1985) The Černý Důl deposit (Czechoslovakia): An example of Ni-, Fe-, Ag-, Cu-arsenide mineralization with extremely high activity of arsenic; new data on paxite, novakite and kutinaite. TMPM Tschermaks Mineralogische und Petrographische Mitteilungen, 34 (3) 167-182 doi:10.1007/bf01082960

(2023) Paxite. Handbook of Mineralogy. Mineralogical Society of America

Localities for PaxiteHide

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 references and 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 (e.g. from pseudomorphs).

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


Czech Republic (TL)
Hradec Králové Region Trutnov District ⓘ Černý Důl (TL)	Johan (1961:) +2 other references

Germany
Hesse Darmstadt Darmstadt-Dieburg Mühltal Nieder-Beerbach ⓘ Glasberg quarry	Belendorff (1986) +1 other reference

USA
Michigan Keweenaw County Allouez Township Mohawk ⓘ Mohawk Mine	Heinrich et al. (2004)

Paxite

About PaxiteHide

Unique IdentifiersHide

IMA Classification of PaxiteHide