General Apachite Information Chemical Formula: |
Cu9Si10O29•11(H2O) |
Composition: |
Molecular Weight = 1,514.92 gm |
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Copper 37.75 % Cu 47.26 % CuO |
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Silicon 18.54 % Si 39.66 % SiO2 |
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Hydrogen 1.46 % H 13.08 % H2O |
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Oxygen 42.24 % O |
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______ ______ |
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100.00 % 100.00 % = TOTAL OXIDE |
Empirical Formula: |
Cu9Si10O29•11(H2O) |
Environment: |
Garnet diopside tactite zone. |
IMA Status: |
Approved IMA 1979 |
Locality: |
Christmas Mine, Gila, Arizona, USA. Link to MinDat.org Location Data. |
Name Origin: |
Named for the Apache Indians, whose reservation is near the locality. |
Name Pronunciation: |
Apachite |
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Images:
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Images:
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Apachite Crystallography Axial Ratios: |
a:b:c =2.1288:1:3.156 |
Cell Dimensions: |
a = 12.89, b = 6.055, c = 19.11, Z = 2; beta = 90.42° V = 1,491.48 Den(Calc)= 3.37 |
Crystal System: |
MonoclinicSpace Group: Unk |
X Ray Diffraction: |
By Intensity(I/Io): 12.9(1), 3.168(0.7), 7.663(0.5), |
| Physical Properties of Apachite Color: |
Blue. |
Density: |
2.8 |
Diaphaneity: |
Translucent |
Habit: |
Radial - Crystals radiate from a center without producing stellar forms (e.g. stibnite) |
Habit: |
Spherical - Spherical, rounded aggregates. |
Hardness: |
2 - Gypsum |
Streak: |
light blue |
| Optical Properties of Apachite Gladstone-Dale: |
CI meas= -0.097 (Poor) - where the CI = (1-KPDmeas/KC) |
CI calc= 0.089 (Poor) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.1889,KPDmeas= 0.2274,KC= 0.2073 Ncalc = 1.58 - 1.7 Optical Data: |
Biaxial (-), a=1.61, b=1.65, g=1.65, bire=0.0400, 2V(Calc)=0, 2V(Meas)=~15. |
| Calculated Properties of Apachite Electron Density: |
Bulk Density (Electron Density)=3.31 gm/cc |
note: Specific Gravity of Apachite =3.37 gm/cc. Fermion Index: |
Fermion Index = 0.0088628086 |
Boson Index = 0.9911371914 Photoelectric: |
PEApachite = 16.97 barns/electron |
U=PEApachite x rElectron Density= 56.11 barns/cc. Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units) |
Apachite is Not Radioactive | Apachite Classification Dana Class: |
78.04.01.01 (78)Unclassified silicates |
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(78.04)possible inosilicates |
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(78.04.01)Dana Group |
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Strunz Class: |
09.HE.10 09 - SILICATES (Germanates) |
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09.H - Unclassified Silicates |
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09.HE -With Cu, Zn |
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| Other Apachite Information References: |
NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Dana8) |
See Also: |
Links to other databases for Apachite : |
1 - Am. Min. Crystal Structure Database 2 - Athena 3 - EUROmin Project 4 - Ecole des Mines de Paris 5 - GeoScienceWorld 6 - Google Images 7 - Google Scholar 8 - Handbook of Mineralogy (MinSocAm) 9 - Handbook of Mineralogy (UofA) 10 - MinDAT 11 - Mineralienatlas (Deutsch) 12 - Online Mineral Museum 13 - QUT Mineral Atlas 14 - Ruff.Info Search for Apachite using: Visit our Advertisers for Apachite : A Bijoux Google Search for ApachiteAdam's Minerals Google Search for Apachite Cape Minerals Google Search for Apachite Dakota Matrix Minerals Google Search for Apachite Excalibur Mineral Corp. Google Search for Apachite Exceptional Minerals Google Search for Apachite John Betts Fine Minerals Search for Apachite McDougall Minerals Google Search for Apachite Mineral News Website Link Rock and Mineral Shows Google Search for Apachite Weinrich Minerals, Inc. Google Search for Apachite Ask about Apachite here : Print or Cut-and-Paste your Apachite Specimen Label here :
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