Clinohedrite Mineral Data

General Clinohedrite Information

Chemical Formula:

CaZnSiO4•(H2O)

Composition:

Molecular Weight = 215.57 gm

Calcium 18.59 % Ca 26.01 % CaO

Zinc 30.33 % Zn 37.76 % ZnO

Silicon 13.03 % Si 27.87 % SiO₂

Hydrogen 0.94 % H 8.36 % H₂O

Oxygen 37.11 % O

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Empirical Formula:

CaZn(SiO₄)•(H₂O)

Environment:

In a metamorphosed stratiform zinc orebody.

IMA Status:

Valid Species (Pre-IMA) 1898

Locality:

Franklin, Sussex Co., New Jersey, USA. Link to MinDat.org Location Data.

Name Origin:

From the Greek "klino", for incline, and "hedra", for face, for the inclined facial character of the crystal morphology.

Name Pronunciation:

Clinohedrite + Pronunciation

Synonym:

ICSD 200432

PDF 17-214

Clinohedrite Image

Images:

Click Here for Larger Clinohedrite Image

Clinohedrite Epidote-(Pb)

Comments: Clear crystals of clinohedrite on hancockite (epidote-(Pb)).
Location: Franklin, Sussex County, New Jersey, USA. Scale: Not Given.
© Lou Perloff / Photo Atlas of Minerals

Clinohedrite Crystallography

Axial Ratios:

a:b:c =0.3406:1:0.3287

Cell Dimensions:

a = 5.43, b = 15.94, c = 5.24, Z = 4; beta = 103.933° V = 440.20 Den(Calc)= 3.25

Crystal System:

Monoclinic - DomaticH-M Symbol (m) Space Group: Aa

$Help on X Ray Diffraction:$ X Ray Diffraction:

By Intensity(I/I_o): 2.76(1), 3.23(0.7), 2.5(0.6),

Crystal Structure:

Mouse
drag1 - LMB Manipulate Structure
drag2 - RMB Resize/Rotate
Keyboard
S - Stereo Pair on/off
H - Help Screen
I - Data Info
A - Atoms On/Off
P - Polyhedra On/Off
B - Bonds On/Off
Help on Above

Venetopoulos C C , Rentzeperis P J , Zeitschrift fur Kristallographie , 144 (1976) p.377-392, Redetermination of the crystal structure of clinohedrite, CaZnSiO4*H2O

Physical Properties of Clinohedrite

Cleavage:

{010} Perfect

Color:

Colorless, White, Amethystine red.

Density:

3.33

Diaphaneity:

Translucent to subtranslucent

Fracture:

Brittle - Generally displayed by glasses and most non-metallic minerals.

Hardness:

5.5 - Knife Blade

Luminescence:

Fluorescent, Short UV=orange, Long UV=orange.

Luster:

Vitreous (Glassy)

Magnetism:

Nonmagnetic

Streak:

white

Optical Properties of Clinohedrite

Gladstone-Dale:

CI meas= 0.003 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= -0.021 (Excellent) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2049,KPDmeas= 0.2,KC= 0.2007
Ncalc = 1.65 - 1.67

Optical Data:

Biaxial (-), a=1.662, b=1.667, g=1.669, bire=0.0070

Calculated Properties of Clinohedrite

Electron Density:

Bulk Density (Electron Density)=3.27 gm/cc
note: Specific Gravity of Clinohedrite =3.33 gm/cc.

Fermion Index:

Fermion Index = 0.01
Boson Index = 0.99

Photoelectric:

PE_Clinohedrite= 17.59 barns/electron
U=PE_Clinohedrite x rElectron Density= 57.60 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Clinohedrite is Not Radioactive

Clinohedrite Classification

Dana Class:

52.02.01.02 (52)Nesosilicate Insular SiO4 Groups and O, OH, F, and H2O

(52.02)with cations in [4] and >[4] coordination

(52.02.01)Euclase group

52.02.01.01 Euclase BeAlSiO4(OH) P 2₁/a 2/m

52.02.01.02 Clinohedrite CaZnSiO4•(H2O) Aa m

52.02.01.03 Hodgkinsonite MnZn2SiO4(OH)2 P 2₁/c 2/m

52.02.01.04 Gerstmannite (Mg,Mn)2ZnSiO4(OH)2 Bbam 2/m 2/m 2/m

Strunz Class:

09.AE.30 09 - SILICATES (Germanates)

09.A - Nesosilicates

09.AE -Nesosilicates with additional (O,OH,F,H2O);

09.AE.30 Clinohedrite CaZnSiO4•(H2O) Aa m

Other Clinohedrite Information

References:

NAME( Ford32) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)

See Also:

Links to other databases for Clinohedrite :
1 - Am. Min. Crystal Structure Database
2 - Amethyst Galleries' Mineral Gallery
3 - Athena
4 - EUROmin Project
5 - Ecole des Mines de Paris
6 - Franklin Minerals(Dunn)
7 - Franklin Minerals(Palache)
8 - GeoScienceWorld
9 - Google Images
10 - Google Scholar
11 - Handbook of Mineralogy (MinSocAm)
12 - Handbook of Mineralogy (UofA)
13 - MinDAT
14 - Mineralienatlas (Deutsch)
15 - Minerals of Franklin and Sterling Hill
16 - Online Mineral Museum
17 - QUT Mineral Atlas
18 - Ruff.Info
19 - WWW-MINCRYST

Search for Clinohedrite using:

[AOL] [Bing] [Dog Pile] [GeoScienceWorld] [HotBot] [Ixquick] [Lycos] [MAMMA] [Scirus] [Teoma] [WebCrawler] [Wikipedia] [YAHOO]

Visit our Advertisers for Clinohedrite :

A Bijoux Google Search for Clinohedrite
Adam's Minerals Google Search for Clinohedrite
Cape Minerals Google Search for Clinohedrite
Dakota Matrix Minerals Google Search for Clinohedrite
Excalibur Mineral Corp. Google Search for Clinohedrite
Exceptional Minerals Google Search for Clinohedrite
John Betts Fine Minerals Search for Clinohedrite
McDougall Minerals Google Search for Clinohedrite
Mineral News Website Link
Rock and Mineral Shows Google Search for Clinohedrite
Weinrich Minerals, Inc. Google Search for Clinohedrite

Ask about Clinohedrite here :
Ask-A-Mineralogist from the Mineralogical Society of America
Mindat.org's Discussion Groups
Original Rockhounds Discussion Group
Rockhounds Discussion Group on Yahoo Groups
Mineral Discussion Forum from Fabre Minerals - also available in Español

Print or Cut-and-Paste your Clinohedrite Specimen Label here :

Clinohedrite

CaZnSiO4•(H2O)
Dana No: 52.02.01.02 Strunz No: 09.AE.30
Locality:

Notes: