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Anthonyite

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Formula:
Cu(OH,Cl)2 · 3H2O
System:
Monoclinic
Colour:
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

Approved
3.DA.40

3 : HALIDES
D : Oxyhalides, hydroxyhalides and related double halides
A : With Cu, etc., without Pb
6.2.6.1

6 : HYDROXIDES AND OXIDES CONTAINING HYDROXYL
2 : X(OH)2
8.2.9

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

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

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 Data:
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°
Max Birefringence:
δ = 0.076
Image 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 · 3H2O
Essential elements:
All elements listed in formula:
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:
Cu1.00[(OH)1.72Cl0.28]=2.00 · 2.80H2O

Relationship of Anthonyite to other Species

3.DA.05MelanothalliteCu2Cl2O
3.DA.10aAtacamiteCu2(OH)3Cl
3.DA.10bBotallackiteCu2(OH)3Cl
3.DA.10bClinoatacamiteCu2(OH)3Cl
3.DA.10aHibbingiteFe22+(OH)3Cl
3.DA.10aKempiteMn22+(OH)3Cl
3.DA.10cParatacamiteCu3(Cu,Zn)(OH)6Cl2
3.DA.10bBelloiteCu(OH)Cl
3.DA.10cHerbertsmithiteCu3Zn(OH)6Cl2
3.DA.10cKapellasiteCu3Zn(OH)6Cl2
3.DA.10cGillarditeCu3Ni(OH)6Cl2
3.DA.10cHaydeeiteCu3Mg(OH)6Cl2
3.DA.10dAnatacamiteCu2(OH)3Cl
3.DA.15ClaringbulliteCu4ClF(OH)6
3.DA.15BarlowiteCu4BrF(OH)6
3.DA.20SimonkolleiteZn5Cl2(OH)8 · H2O
3.DA.25ButtgenbachiteCu19(NO3)2(OH)32Cl4 · 2H2O
3.DA.25ConnelliteCu19(SO4)(OH)32Cl4 · 3H2O
3.DA.30AbhuriteSn21Cl16(OH)14O6
3.DA.35PonomareviteK4Cu4Cl10O
3.DA.40CalumetiteCu(OH,Cl)2 · 2H2O
3.DA.45KhaidarkaniteNa0.34Cu4Al3(OH)14F3 · 2H2O
3.DA.50BobkingiteCu5Cl2(OH)8 · 2H2O
3.DA.55AvdoniniteK2Cu5(OH)4Cl8 · H2O
3.DA.60DroninoiteNi6Fe32+(OH)16Cl2 · 4H2O
8.2.1NantokiteCuCl
8.2.2TolbachiteCuCl2
8.2.3EriochalciteCuCl2 · 2H2O
8.2.4AtacamiteCu2(OH)3Cl
8.2.5ParatacamiteCu3(Cu,Zn)(OH)6Cl2
8.2.6BotallackiteCu2(OH)3Cl
8.2.7MelanothalliteCu2Cl2O
8.2.8CalumetiteCu(OH,Cl)2 · 2H2O
8.2.10ClaringbulliteCu4ClF(OH)6
8.2.11MarshiteCuI
8.2.12MitscherlichiteK2CuCl4 · 2H2O
8.2.13PonomareviteK4Cu4Cl10O

Other Names for Anthonyite

Name in Other Languages:
German:Anthonyit
Spanish:Anthonyita

Other Information

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 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

Localities for Anthonyite

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 for a valid mineral species. (FRL) indicates first recorded locality for everything else. ? 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.
Mineral and/or Locality  
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