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Anthonyite

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Formula:
Cu(OH,Cl)
 
2
· 3H
 
2
O
System:MonoclinicColour:Lavender
Hardness:2
Name:For John Williams Anthony (1920-1992), Professor of Mineralogy in the University of Tucson, Arizona, USA.
This page provides mineralogical data about Anthonyite.

Classification of Anthonyite

IMA status:Approved
Strunz 8th edition ID:3/D.01-80
Nickel-Strunz 10th (pending) edition ID:3.DA.40

3 : HALIDES
D : Oxyhalides, hydroxyhalides and related double halides
A : With Cu, etc., without Pb
Dana 8th edition ID:6.2.6.1

6 : HYDROXIDES AND OXIDES CONTAINING HYDROXYL
2 : X(OH)2
Hey's CIM Ref.:8.2.9

8 : Halides - Fluorides, Chlorides, Bromides and Iodides; also Fluoborates and Fluosilicates
2 : Halides of Cu
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Type Occurrence of Anthonyite

Type Locality:Centennial Mine, Centennial, Houghton Co., Michigan, USA
General Appearance of Type Material:as prismatic crystals, commonly curved, to 1 cm; as crusts
Place of Conservation of Type Material:National Museum of Natural History, Washington, D.C., USA (Nos. 142653 and 162617)
Year of Discovery:1963
Geological Setting of type material:In cavities and fractures in basalt, formed by the action of chlorine-bearing connate waters on copper
Associated Minerals at type locality:
TremoliteQuartzParatacamiteMonaziteEpidote
CupriteCopper

Physical Properties of Anthonyite

Diaphaneity (Transparency):Translucent
Colour:Lavender
Hardness (Mohs):2
Tenacity:Sectile
Cleavage:Distinct/Good
on {100}

Crystallography of Anthonyite

Crystal System:Monoclinic
Class (H-M):2/m - Prismatic
Morphology:Prismatic crystals, commonly curved along [001]
Comment:Space group not determined; only beta angle given.
X-Ray Powder Diffraction:
d-spacingIntensity
5.84 (10)
4.14 (7)
3.99 (6)
3.44 (6)
2.87 (6)
3.18 (4)
3.07 (4)
Comments:Recorded on material from the type locality

Optical Data of Anthonyite

Type:Biaxial (-)
RI values: nα = 1.526 nβ = 1.602 nγ = 1.602
2V:Measured: 3°
Maximum Birefringence:δ = 0.076

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:Moderate
Dispersion:relatively weak
Pleochroism:Weak
Comments:X = rich lavender, Y = Z = deep smoky blue, Orientation: Y = b, Z vs. b = 13°

Chemical Properties of Anthonyite

Formula:
Cu(OH,Cl)
 
2
· 3H
 
2
O
Simplified for copy/paste:Cu(OH,Cl)2·3H2O
Essential elements:Cu, H, O
All elements listed in formula:Cl, Cu, H, O
Analytical Data:Analysis of material from the type locality; Cu determined by electrogravimetry, H2O/OH calculated from the charge balance
Cu (41.3)
AgCl (0.24)
Cl (6.3)
H2O + OH (35.5)
H2O (16.4)

sum 99.74 wt.-%
Empirical Formula:
Cu
 
1.00
[(OH)
 
1.72
Cl
 
0.28
]
 
=2.00
· 2.80H
 
2
O

Relationship of Anthonyite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
3.DA.05Melanothallite
Cu
 
2
Cl
 
2
O
3.DA.10aAtacamite
Cu
 
2
(OH)
 
3
Cl
3.DA.10bBotallackite
Cu
 
2
(OH)
 
3
Cl
3.DA.10bClinoatacamite
Cu
 
2
(OH)
 
3
Cl
3.DA.10aHibbingite
Fe
2+
2
(OH)
 
3
Cl
3.DA.10aKempite
Mn
2+
2
(OH)
 
3
Cl
3.DA.10cParatacamite
Cu
 
3
(Cu,Zn)(OH)
 
6
Cl
 
2
3.DA.10bBelloite
Cu(OH)Cl
3.DA.10cHerbertsmithite
Cu
 
3
Zn(OH)
 
6
Cl
 
2
3.DA.10cKapellasite
Cu
 
3
Zn(OH)
 
6
Cl
 
2
3.DA.10cGillardite
Cu
 
3
Ni(OH)
 
6
Cl
 
2
3.DA.10cHaydeeite
Cu
 
3
Mg(OH)
 
6
Cl
 
2
3.DA.10dAnatacamite
Cu
 
2
(OH)
 
3
Cl
3.DA.15Claringbullite
Cu
 
4
(OH)
 
7
Cl · nH
 
2
O
3.DA.15Barlowite
Cu
 
4
BrF(OH)
 
6
3.DA.20Simonkolleite
Zn
 
5
Cl
 
2
(OH)
 
8
· H
 
2
O
3.DA.25Buttgenbachite
Cu
 
19
(NO
 
3
)
 
2
(OH)
 
32
Cl
 
4
· 2H
 
2
O
3.DA.25Connellite
Cu
 
19
(SO
 
4
)(OH)
 
32
Cl
 
4
· 3H
 
2
O
3.DA.30Abhurite
Sn
 
21
Cl
 
16
(OH)
 
14
O
 
6
3.DA.35Ponomarevite
K
 
4
Cu
 
4
Cl
 
10
O
3.DA.40Calumetite
Cu(OH,Cl)
 
2
· 2H
 
2
O
3.DA.45Khaidarkanite
Na
 
0.34
Cu
 
4
Al
 
3
(OH)
 
14
F
 
3
· 2H
 
2
O
3.DA.50Bobkingite
Cu
 
5
Cl
 
2
(OH)
 
8
· 2H
 
2
O
3.DA.55Avdoninite
K
 
2
Cu
 
5
(OH)
 
4
Cl
 
8
· H
 
2
O
3.DA.60Droninoite
Ni
 
6
Fe
2+
3
(OH)
 
16
Cl
 
2
· 4H
 
2
O
Related Minerals - Hey's Index Grouping:

- +
8.2.1Nantokite
CuCl
8.2.2Tolbachite
CuCl
 
2
8.2.3Eriochalcite
CuCl
 
2
· 2H
 
2
O
8.2.4Atacamite
Cu
 
2
(OH)
 
3
Cl
8.2.5Paratacamite
Cu
 
3
(Cu,Zn)(OH)
 
6
Cl
 
2
8.2.6Botallackite
Cu
 
2
(OH)
 
3
Cl
8.2.7Melanothallite
Cu
 
2
Cl
 
2
O
8.2.8Calumetite
Cu(OH,Cl)
 
2
· 2H
 
2
O
8.2.10Claringbullite
Cu
 
4
(OH)
 
7
Cl · nH
 
2
O
8.2.11Marshite
CuI
8.2.12Mitscherlichite
K
 
2
CuCl
 
4
· 2H
 
2
O
8.2.13Ponomarevite
K
 
4
Cu
 
4
Cl
 
10
O

Other Names for Anthonyite

Other Languages:
German:Anthonyit
Spanish:Anthonyita

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 Anthonyite

Reference List:

- +
Williams, S. A. (1963): Anthonyite and calumetite, two new minerals from the Michigan copper district. American Mineralogist 48, 614-619.

Anthony, J. W. et al. (1997): Handbook of Mineralogy, Vol. 3, 18.

Internet Links for Anthonyite

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  • Look for Anthonyite on Wikipedia
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  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Anthonyite details from Handbook of Mineralogy (PDF)
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  • Localities for Anthonyite

    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
     
    • Hesse
      • Richelsdorf District
        • Süss
          • Richelsdorf Smelter
    S. Weiß: "Mineralfundstellen, Deutschland West", Weise (Munich), 1990
    Greece
     
    • Attikí Prefecture (Attica; Attika)
      • Lavrion District (Laurion; Laurium)
    Schnorrer-Köhler, G. (1986): Neufunde in den Schlacken von Laurion. Lapis, 11 (6), 25-29; 42.
    Mexico
     
    • Sonora
      • Mun. de Puerto Penasco
    J. W. Anthony et al.: Handbook of Mineralogy, Vol. 3 (1997), 18
    USA
     
    • Arizona
      • Cochise Co.
        • Mule Mts
          • Warren District
            • Bisbee
    Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 114; Graeme, R. (1981), Famous mineral localities: Bisbee, AZ, Min.Rec.: 12: 256-319.
      • Gila Co.
        • Dripping Spring Mts
          • Banner District
            • Christmas area
              • Christmas
    Raman analyzed at the University of Arizona.
    • Michigan
      • Houghton Co.
        • Centennial
    Williams, S.A. (1963): Anthonyite and calumetite, two new minerals from the Michigan Copper District. American Mineralogist. 48, 614-619; Rocks & Min.:58:109.
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