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Graemite

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Richard Graeme III
Formula:
Cu2+Te4+O3 · H2O
System:
Orthorhombic
Colour:
Blue-green
Hardness:
3 - 3½
Name:
FNamed by S.A. Williams and P. Matter in 1975 in honor of Richard (Dick) Graeme III (1941, Bisbee, Arizona, USA - ) American geologist and mineral collector who discovered the mineral. He began collecting Bisbee minerals at age six. At one point, he was Resident Geologist of the Copper Queen Branch mine.
This page provides mineralogical data about Graemite.


Classification of Graemite

Approved
Approval Year:
1974
4.JM.15

4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
J : Arsenites, antimonites, bismuthites, sulfites, selenites, tellurites; iodates
M : Tellurites without additional anions, with H2O
Dana 7th ed.:
34.2.1.1
34.2.1.1

34 : SELENITES, TELLURITES AND SULFITES
2 : A(XO3)·xH2O
28.3.3

28 : Selenites, Selenates, Tellurites, and Tellurates
3 : Tellurites

Physical Properties of Graemite

Colour:
Blue-green
Hardness (Mohs):
3 - 3½
Tenacity:
Brittle
Cleavage:
Distinct/Good
good on {010}
Parting:
good on (100)
Density:
4.13(9) g/cm3 (Measured)    

Optical Data of Graemite

Type:
Biaxial (+)
RI values:
nα = 1.920(3) nβ = 1.960(3) nγ = 2.200(5)
2V:
Measured: 48° , Calculated: 50°
Max Birefringence:
δ = 0.280
Image shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:
Very High
Dispersion:
r > v strong
Pleochroism:
Visible
Comments:
Z and Y blue green, X yellowish green;

Chemical Properties of Graemite

IMA Formula:
Cu2+Te4+O3 · H2O
Elements listed in formula:

Crystallography of Graemite

Crystal System:
Orthorhombic
Class (H-M):
mmm (2/m 2/m 2/m) - Dipyramidal
Space Group:
Pmma
Cell Parameters:
a = 6.805(6) Å, b = 25.613(15) Å, c = 5.780(6) Å
Ratio:
a:b:c = 0.266 : 1 : 0.226
Unit Cell Volume:
V 1,007.43 ų (Calculated from Unit Cell)
Z:
10
X-Ray Powder Diffraction Data:
d-spacingIntensity
6.395 (10)
3.434 (8)
12.803 (5)
2.558 (5)
2.873 (4)
2.343 (4)
5.640 (3)
2.801 (3)

Type Occurrence of Graemite

General Appearance of Type Material:
divergent platy, bladed crystals
Place of Conservation of Type Material:
University of Arizona collection.
Geological Setting of Type Material:
oxidation of hypogene ore deposit
Associated Minerals at Type Locality:

Relationship of Graemite to other Species

4.JM.05KeystoneiteH0.8Mg0.8(Ni,Fe3+,Mn)2(Te4+O3)3 · 5H2O
4.JM.05KinichiliteMg0.5Mn2+Fe3+(Te4+O3)3 · 4.5H2O
4.JM.05ZemanniteMg0.5ZnFe3+(Te4+O3)3 · 4.5H2O
4.JM.10BlakeiteFe23+(Te4+O3)3
4.JM.10EmmonsiteFe23+(Te4+O3)3 · 2H2O
4.JM.20TeineiteCu2+Te4+O3 · 2H2O
28.3.1BalyakiniteCu2+Te4+O3
28.3.2RajiteCuTe24+O5
28.3.4TeineiteCu2+Te4+O3 · 2H2O
28.3.5CesbroniteCu5(Te4+O3)2(OH)6 · 2H2O
28.3.6MroseiteCaTe4+O2(CO3)
28.3.7QuetzalcoatliteCu32+Zn6Te26+O12(OH)6 · (Ag,Pb,◻)Cl
28.3.8ZemanniteMg0.5ZnFe3+(Te4+O3)3 · 4.5H2O
28.3.9KinichiliteMg0.5Mn2+Fe3+(Te4+O3)3 · 4.5H2O
28.3.10DenningiteCaMn2+Te44+O10
28.3.11SpiroffiteMn22+Te34+O8
28.3.12WinstanleyiteTiTe34+O8
28.3.13FairbankitePbTe4+O3
28.3.14PlumbotelluritePbTe4+O3
28.3.15Choloalite(Pb,Ca)3(Cu,Sb)3Te6O18Cl
28.3.16SmirniteBi23+Te4+O5
28.3.17ChekhovichiteBi23+Te44+O11
28.3.18ClifforditeUTe34+O9
28.3.19Schmitterite(UO2)Te4+O3
28.3.20MoctezumitePb(UO2)(Te4+O3)2
28.3.21EmmonsiteFe23+(Te4+O3)3 · 2H2O
28.3.22BlakeiteFe23+(Te4+O3)3
28.3.23MackayiteFe3+Te24+O5(OH)
28.3.24PoughiteFe23+(Te4+O3)2SO4 · 3H2O
28.3.25SonoraiteFe3+Te4+O3(OH) · H2O
28.3.26RodalquilariteH3Fe23+(Te4+O3)4Cl
28.3.27EztlitePb2Fe63+(Te4+O3)3(Te6+O6)(OH)10 · 8H2O
28.3.28KeystoneiteH0.8Mg0.8(Ni,Fe3+,Mn)2(Te4+O3)3 · 5H2O

Other Names for Graemite

Name in Other Languages:
German:Graemit
Spanish:Graemita

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 Graemite

Reference List:
Williams, S.A., Matter, P. (1975) Graemite a new Bisbee mineral. The Mineralogical Record: 6: 32-34.

Fleischer, M., Chao, G.Y., Kato, A. (1975) New mineral names. American Mineralogist: 60: 486.

Geological Association of Canada/Mineralogical Association of Canada Final Program and Abstracts: 25: A-66.

Internet Links for Graemite

mindat.org URL:
http://www.mindat.org/min-1734.html
Please feel free to link to this page.

Localities for Graemite

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.
Belgium
 
  • Luxembourg Province
    • Stavelot Massif
      • Vielsalm
José Dehove collection
Mexico
 
  • Sonora
    • Mun. de Moctezuma
Lapis 2001(1), 11-40
USA
 
  • Arizona
    • Cochise Co.
      • Mule Mts
        • Warren District
[MinRec 24:421]
Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 238; Williams, S.A. & P. Matter III (1975), Graemite, a new Bisbee mineral, Min.Rec.: 6: 32-34.
Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 238; Graeme, R. (1993), Bisbee revisited, Min.Rec.: 24: 421-436.
    • La Paz Co.
Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 206; Williams, S.A. & P. Matter, III (1975), Graemite, a new Bisbee mineral, Min.Rec.: 6: 32-34.
Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 238; Williams, S.A. & P. Matter, III (1975), Graemite, a new Bisbee mineral, Min.Rec.: 6:32-34.
  • Utah
    • Utah Co.
      • East Tintic Mts
        • East Tintic District
SEM EDS and XRD confirmed by Rob Bowell.
Mineral and/or Locality  
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