Graemite
A valid IMA mineral species
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About Graemite
Richard Graeme III
Formula:
Cu[TeO3] · H2O
Colour:
Blue-green
Hardness:
3 - 3½
Specific Gravity:
4.13
Crystal System:
Orthorhombic
Name:
Named by S.A. Williams and P. Matter in 1975 in honor of Richard (Dick) Graeme III (1941, Bisbee, Arizona, USA - June 3 2021) 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.
Type Locality:
This page provides mineralogical data about Graemite.
Unique Identifiers
Mindat ID:
1734
Long-form identifier:
mindat:1:1:1734:9
GUID
(UUID V4):
(UUID V4):
acd1a735-d45a-4194-a78e-783ca443538a
IMA Classification of Graemite
Classification of Graemite
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
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
34 : SELENITES, TELLURITES AND SULFITES
2 : A(XO3)·xH2O
28.3.3
28 : Selenites, Selenates, Tellurites, and Tellurates
3 : Tellurites
28 : Selenites, Selenates, Tellurites, and Tellurates
3 : Tellurites
Mineral Symbols
As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
| Symbol | Source | Reference |
|---|---|---|
| Gmi | IMA–CNMNC | Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
Pronunciation of Graemite
Pronunciation:
| Play | Recorded by | Country |
|---|---|---|
| Jolyon Ralph | United Kingdom |
Physical Properties of Graemite
Colour:
Blue-green
Hardness:
3 - 3½ on Mohs scale
Tenacity:
Brittle
Cleavage:
Distinct/Good
good on {010}
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.
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;
Chemistry of Graemite
Mindat Formula:
Cu[TeO3] · H2O
Elements listed:
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 V:
1,007.43 ų (Calculated from Unit Cell)
Z:
10
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 6.395 Å | (10) |
| 3.434 Å | (8) |
| 12.803 Å | (5) |
| 2.558 Å | (5) |
| 2.873 Å | (4) |
| 2.343 Å | (4) |
| 5.640 Å | (3) |
| 2.801 Å | (3) |
Geological Environment
Paragenetic Mode(s):
| Paragenetic Mode | Earliest Age (Ga) |
|---|---|
| Stage 7: Great Oxidation Event | <2.4 |
| 47e : [Vanadates, chromates, manganates] |
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:
Synonyms of Graemite
Other Language Names for Graemite
Common Associates
Associated Minerals Based on Photo Data:
| 8 photos of Graemite associated with Teineite | Cu2+(Te4+O3) · 2H2O |
| 3 photos of Graemite associated with Tlalocite | Cu10Zn6(Te6+O4)2(Te4+O3)(OH)25Cl · 27H2O |
| 2 photos of Graemite associated with Hessite | Ag2Te |
| 1 photo of Graemite associated with Cuprite | Cu2O |
| 1 photo of Graemite associated with Malachite | Cu2(CO3)(OH)2 |
| 1 photo of Graemite associated with Cesbronite | Cu2+3Te6+O4(OH)4 |
Related Minerals - Strunz-mindat Grouping
| 4.JM. | Rudolfhermannite | Fe(Te4+O3)3 · H2O |
| 4.JM. | Wortupaite | MgNi2+2(Te4+O3)3 · 3H2O |
| 4.JM.05 | Keystoneite | Mg0.5Ni2+Fe3+(Te4+O3)3 · 4.5H2O |
| 4.JM.05 | Kinichilite | Mg0.5Mn2+Fe3+(Te4+O3)3 · 4.5H2O |
| 4.JM.05 | Zemannite | Mg0.5ZnFe3+(Te4+O3)3 · 4.5H2O |
| 4.JM.05 | Ilirneyite | Mg0.5ZnMn3+(Te4+O3)3 · 4.5H2O |
| 4.JM.10 | Blakeite | Fe3+2[TeO3]3 (?) |
| 4.JM.10 | Emmonsite | Fe3+2(TeO3)3 · 2H2O |
| 4.JM.20 | Teineite | Cu2+(Te4+O3) · 2H2O |
| 4.JM.20 | Telluromandarinoite | Fe3+2Te3O9 · 6H2O |
| 4.JM.25 | Millsite | Cu2+(Te4+O3) · 2H2O |
Fluorescence of Graemite
none
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.
Internet Links for Graemite
mindat.org URL:
https://www.mindat.org/min-1734.html
Please feel free to link to this page.
Please feel free to link to this page.
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External Links:
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References for Graemite
Localities for Graemite
symbol to view information about a locality.
The Locality List
- 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).
All localities listed without proper references should be considered as questionable.
Belgium | |
| Blondieau (2005) |
Mexico | |
| |
| Lapis 2001 (1) | |
USA | |
| Graeme (1993) |
| Williams (1975) +1 other reference | |
| Graeme (1993) +1 other reference | |
| Williams et al. (1975) +1 other reference |
| Williams et al. (1975) +1 other reference | |
| SEM EDS and XRD confirmed by Rob Bowell. |
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Cole Mine, Bisbee, Cochise County, Arizona, USA