Santaclaraite Mineral Data

Santaclaraite Mineral Data
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General Santaclaraite Information

Help on Chemical Formula: Chemical Formula: CaMn++4Si5O14(OH)2•(H2O)
Help on Composition: Composition: Molecular Weight = 676.28 gm
   Calcium     5.93 %  Ca    8.29 % CaO
   Manganese  32.49 %  Mn   41.96 % MnO
   Silicon    20.76 %  Si   44.42 % SiO2
   Hydrogen    0.60 %  H     5.33 % H2O
   Oxygen     40.22 %  O
             ______        ______ 
             100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: CaMn2+4Si5O14(OH)2•(H2O)
Help on IMA Status: IMA Status: Approved IMA 1981
Help on Locality: Locality: Pennsylvania mine, SW side of San Antonio Valley, 4 miles ENE of Mount Hamilton, Santa Clara Co., California, USA. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named after it's locality.
Help on Name Pronunciation: Name Pronunciation: Santaclaraite + Pronunciation Say SANTACLARAITE
 

Santaclaraite Image

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Santaclaraite

Comments: Flesh-colored crystalline aggregates of Santaclaraite.
Location: Corral Hollow, Alemada County, California, USA. Scale: Not Given.
© Lou Perloff / Photo Atlas of Minerals

Santaclaraite Crystallography
Help on Axial Ratios: Axial Ratios: a:b:c =2.0561:1:1.5787
Help on Cell Dimensions: Cell Dimensions: a = 15.633, b = 7.603, c = 12.003, Z = 4; alpha = 109.71°, beta = 88.61°, gamma = 99.95° V = 1,322.47 Den(Calc)= 3.40
Help on Crystal System: Crystal System: Triclinic - PinacoidalH-M Symbol ( 1) Space Group: P1
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 7.04(1), 3.003(0.84), 3.152(0.8),
Click Here for Large Santaclaraite Structure Window Crystal Structure:

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Ohashi Y , Finger L W , American Mineralogist , 66 (1981) p.154-168, The crystal structure of santaclaraite, CaMn4[Si5O14(OH)](OH)*H2O: The role of, hydrogen atoms in the pyroxenoid structure

 

Physical Properties of Santaclaraite

Help on Cleavage: Cleavage: {100} Good, {010} Good
Help on Color: Color: Light pink, Reddish orange.
Help on Density: Density: 3.31
Help on Diaphaneity: Diaphaneity: Transparent to Translucent
Help on Hardness: Hardness: 6.5 - Pyrite
Help on Luster: Luster: Vitreous (Glassy)
Help on Streak: Streak: light pink
 

Optical Properties of Santaclaraite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= 0.003 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= 0.029 (Excellent) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2044,KPDmeas= 0.21,KC= 0.2106
Ncalc = 1.7 - 1.72
Help on Optical Data: Optical Data: Biaxial (-), a=1.681, b=1.696, g=1.708, bire=0.0270, 2V(Calc)=82, 2V(Meas)=83.
 

Calculated Properties of Santaclaraite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=3.23 gm/cc
note: Specific Gravity of Santaclaraite =3.31 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.0099710723
Boson Index = 0.9900289277
Help on Photoelectric: Photoelectric: PESantaclaraite = 9.79 barns/electron
U=PESantaclaraite x rElectron Density= 31.62 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Santaclaraite is Not Radioactive
 

Santaclaraite Classification
Help on Dana Class: Dana Class: 65.04.02.01 (65)Inosilicate Single-Width Unbranched Chains, W=1
  (65.04)with chains P=5
  (65.04.02)Dana Group
 
65.04.02.01 Santaclaraite CaMn4Si5O14(OH)2•(H2O) P1 1
Help on Strunz Class: Strunz Class: 09.DK.10 09 - SILICATES (Germanates)
  09.D - Inosilicates* Structural terminology according to Liebau (1985)
  09.DK -Inosilicates with 5-periodic single chains
 
09.DK.10 Santaclaraite CaMn4Si5O14(OH)2•(H2O) P1 1
 

Other Santaclaraite Information
Help on References: References: NAME( MinRec) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)
Help on See Also: See Also: Links to other databases for Santaclaraite :
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
15 - WWW-MINCRYST

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Ask about Santaclaraite here :
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Print or Cut-and-Paste your Santaclaraite Specimen Label here :

Santaclaraite

CaMn++4Si5O14(OH)2•(H2O)
Dana No: 65.04.02.01 Strunz No: 09.DK.10
Locality:

 

Notes: