Clinochrysotile  Mineral Data

Clinochrysotile Mineral Data

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General Clinochrysotile Information

Help on Chemical  Formula: Chemical Formula: Mg3Si2O5(OH)4
Help on Composition: Composition: Molecular Weight = 277.11 gm
   Magnesium  26.31 %  Mg   43.63 % MgO
   Silicon    20.27 %  Si   43.36 % SiO2
   Hydrogen    1.45 %  H    13.00 % H2O
   Oxygen     51.96 %  O
             ______        ______ 
             100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Mg3Si2O5(OH)4
Help on Environment: Environment: Metamorphosed and hydrothermally-altered ultra-basic rocks. Clinochrysotile (1951) is now regarded as polytype of chrysotile.
Help on IMA Status: IMA Status: Discredited IMA 2006 - Valid Species (Pre-IMA) 1951
Help on Locality: Locality: Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: From the Greek chrysos - "gold" and tilos - "fiber."
Help on Synonym: Synonym: Asbestos
  Chrysotile
  Deweylite
  Mountain Leather
  Serpentine
 

Clinochrysotile Image

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Clinochrysotile

Comments: Asbestiform crystals of brown Clinochrysotile.
Location: Callenberg North (no. 2) open cut, Callenberg, Glauchau, Saxony, Germany. Scale: Picture size 6 mm.
© Thomas Witzke / Abraxas-Verlag

Clinochrysotile Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =0.5776:1:1.5689
Help on Cell Dimensions: Cell Dimensions: a = 5.32, b = 9.21, c = 14.45, Z = 4; beta = 93.25° V = 706.87 Den(Calc)= 2.60
Help on Crystal System: Crystal System: MonoclinicSpace Group: Cc, C 2/m
 

Physical Properties of Clinochrysotile

Help on Cleavage: Cleavage: {???} Distinct
Help on Color: Color: Green, Red, Yellow, White.
Help on Density: Density: 2.53 - 2.65, Average = 2.59
Help on Diaphaneity: Diaphaneity: Translucent to opaque
Help on Fracture: Fracture: Conchoidal - Fractures developed in brittle materials characterized by smoothly curving surfaces, (e.g. quartz).
Help on Habit: Habit: Amorphous - No crystalline form or imitative shape.
Help on Habit: Habit: Granular - Generally occurs as anhedral to subhedral crystals in matrix.
Help on Habit: Habit: Massive - Fibrous - Distinctly fibrous fine-grained forms.
Help on Hardness: Hardness: 2.5-3 - Finger Nail-Calcite
Help on Luminescence: Luminescence: Non-fluorescent.
Help on Luster: Luster: Resinous
Help on Streak: Streak: white
 

Optical Properties of Clinochrysotile

Help on Gladstone-Dale: Gladstone-Dale: CI meas= 0.027 (Excellent) - where the CI = (1-KPDmeas/KC)
CI calc= 0.03 (Excellent) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2149,KPDmeas= 0.2158,KC= 0.2217
Ncalc = 1.56 - 1.59
Help on Optical Data: Optical Data: Biaxial (-), a=1.545-1.569, b=1.546-1.569, g=1.553-1.571, bire=0.0020-0.0080, 2V(Calc)=0-42, 2V(Meas)=20-60. Dispersion relatively weak.
 

Calculated Properties of Clinochrysotile

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=2.62 gm/cc
note: Specific Gravity of Clinochrysotile =2.59 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.03
Boson Index = 0.97
Help on Photoelectric: Photoelectric: PEClinochrysotile = 1.39 barns/electron
U=PEClinochrysotile x rElectron Density= 3.64 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Clinochrysotile is Not Radioactive
 

Clinochrysotile Classification

Help on  Dana Class: Dana Class: 71.01.02d.01 (71)Phyllosilicate Sheets of Six-Membered Rings
  (71.01)with 1:1 layers
  (71.01.02d)Serpentine group (Chrysotile subgroup)
 
71.01.02d.00 Chrysotile! Mg3Si2O5(OH)4 A2/m 2/m
 
71.01.02d.01 Clinochrysotile? Mg3Si2O5(OH)4 Cc, C 2/m Mono
 
71.01.02d.02 Orthochrysotile? Mg3Si2O5(OH)4 Unk Ortho
 
71.01.02d.03 Parachrysotile? Mg3Si2O5(OH)4 Unk Ortho
 
71.01.02d.04 Pecoraite Ni3Si2O5(OH)4 C 2/m 2/m
Help on  Strunz Class: Strunz Class: 09.ED.15 09 - SILICATES (Germanates)
  09.E - Phyllosilicates
  09.ED -Phyllosilicates with kaolinite layers
 
09.ED.15 Clinochrysotile? Mg3Si2O5(OH)4 Cc, C 2/m Mono
 
09.ED.15 Berthierine (Fe,Fe,Al,Mg)2-3(Si,Al)2O5(OH)4 Cm m
 
09.ED.15 Brindleyite (Ni,Mg,Fe)2Al(SiAl)O5(OH)4 C 2 2
 
09.ED.15 Amesite Mg2Al(SiAl)O5(OH)4 C1 1
 
09.ED.15 Antigorite (Mg,Fe)3Si2O5(OH)4 Cm m
 
09.ED.15 Caryopilite (Mn,Mg,Zn,Fe)3(Si,As)2O510(OH,Cl)4 Cm or C 2/m Mono
 
09.ED.15 Fraipontite (Zn,Al)3(Si,Al)2O5(OH)4 Cm m
 
09.ED.15 Cronstedtite Fe2Fe(SiFe)O5(OH)4 P 31m 3m
 
09.ED.15 Chrysotile Mg3Si2O5(OH)4 A2/m 2/m
 
09.ED.15 Nepouite Ni3Si2O5(OH)4 Ccm21 mm2
 
09.ED.15 Greenalite (Fe,Fe)2-3Si2O5(OH)4 Unk Mono
 
09.ED.15 Kellyite (Mn,Mg,Al)3(Si,Al)2O5(OH)4 P 63 6
 
09.ED.15 Maufite? (Mg,Ni)Al4Si3O13•4(H2O)(?) Mono ? Mono
 
09.ED.15 Lizardite Mg3Si2O5(OH)4 P1 1
 
09.ED.15 Orthochrysotile? Mg3Si2O5(OH)4 Unk Ortho
 
09.ED.15 Manandonite Li2Al4[(Si2AlB)O10](OH)8 C1 1
 
09.ED.15 Pecoraite Ni3Si2O5(OH)4 C 2/m 2/m
 
09.ED.15 Parachrysotile? Mg3Si2O5(OH)4 Unk Ortho
 

Other Clinochrysotile Information

Help on References: References: NAME( Dana) PHYS. PROP.(Dana8) OPTIC PROP.(Dana8)
Help on See Also: See Also: Links to other databases for Clinochrysotile :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - Ecole des Mines de Paris
5 - Franklin Minerals(Dunn)
6 - Google Images
7 - Google Scholar
8 - Handbook of Mineralogy (MinSocAm)
9 - Handbook of Mineralogy (UofA)
10 - MinDAT
11 - MinMax(Deutsch)
12 - MinMax(English)
13 - Mineral and Gemstone Kingdom
14 - Mineralienatlas (Deutsch)
15 - QUT Mineral Atlas
16 - Ruff.Info

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Clinochrysotile

Mg3Si2O5(OH)4
Dana No: 71.01.02d.01 Strunz No: 09.ED.15
Locality:

 

Notes: