Apachite Mineral Data

Apachite Mineral Data
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General Apachite Information

Help on Chemical Formula: Chemical Formula: Cu9Si10O29•11(H2O)
Help on Composition: Composition: Molecular Weight = 1,514.92 gm
   Copper    37.75 %  Cu   47.26 % CuO
   Silicon   18.54 %  Si   39.66 % SiO2
   Hydrogen   1.46 %  H    13.08 % H2O
   Oxygen    42.24 %  O
            ______        ______ 
            100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Cu9Si10O29•11(H2O)
Help on Environment: Environment: Garnet diopside tactite zone.
Help on IMA Status: IMA Status: Approved IMA 1979
Help on Locality: Locality: Christmas Mine, Gila, Arizona, USA. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for the Apache Indians, whose reservation is near the locality.
Help on Name Pronunciation: Name Pronunciation: Apachite Say APACHITE
 

Apachite Image

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Apachite

Comments: Blue crusts of apachite on skarn rock.
Location: Christmas Mine, near Hayden, Gila County, Arizona, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species
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Apachite

Comments: Spherical crystals 0.2mm of blue apachite as grape-like botryodal aggregates.
Location: Christmas mine, Gila Co., Arizona, USA. Scale: Picture size 3.5 mm.
© Tom Loomis / Dakota Matrix

Apachite Crystallography
Help on Axial Ratios: Axial Ratios: a:b:c =2.1288:1:3.156
Help on Cell Dimensions: Cell Dimensions: a = 12.89, b = 6.055, c = 19.11, Z = 2; beta = 90.42° V = 1,491.48 Den(Calc)= 3.37
Help on Crystal System: Crystal System: MonoclinicSpace Group: Unk
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 12.9(1), 3.168(0.7), 7.663(0.5),
 

Physical Properties of Apachite

Help on Color: Color: Blue.
Help on Density: Density: 2.8
Help on Diaphaneity: Diaphaneity: Translucent
Help on Habit: Habit: Radial - Crystals radiate from a center without producing stellar forms (e.g. stibnite)
Help on Habit: Habit: Spherical - Spherical, rounded aggregates.
Help on Hardness: Hardness: 2 - Gypsum
Help on Streak: Streak: light blue
 

Optical Properties of Apachite

Help on Gladstone-Dale: 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
Help on Optical Data: 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

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=3.31 gm/cc
note: Specific Gravity of Apachite =3.37 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.0088628086
Boson Index = 0.9911371914
Help on Photoelectric: Photoelectric: PEApachite = 16.97 barns/electron
U=PEApachite x rElectron Density= 56.11 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Apachite is Not Radioactive
 

Apachite Classification
Help on Dana Class: Dana Class: 78.04.01.01 (78)Unclassified silicates
  (78.04)possible inosilicates
  (78.04.01)Dana Group
 
78.04.01.01 Apachite Cu9Si10O29•11(H2O) Unk Mono
Help on Strunz Class: Strunz Class: 09.HE.10 09 - SILICATES (Germanates)
  09.H - Unclassified Silicates
  09.HE -With Cu, Zn
 
09.HE.10 Apachite Cu9Si10O29•11(H2O) Unk Mono
 

Other Apachite Information
Help on References: References: NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Dana8)
Help on See Also: 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

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Ask about Apachite here :
Ask-A-Mineralogist from the Mineralogical Society of America
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Rockhounds Discussion Group on Yahoo Groups
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Print or Cut-and-Paste your Apachite Specimen Label here :

Apachite

Cu9Si10O29•11(H2O)
Dana No: 78.04.01.01 Strunz No: 09.HE.10
Locality:

 

Notes: