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 % H2 O
Oxygen 37.11 % O
______ ______
100.00 % 100.00 % = TOTAL OXIDE
Empirical Formula:
CaZn(SiO4 )•(H2 O)
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:
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 - Domatic H-M Symbol (m) Space Group: Aa
X Ray Diffraction:
By Intensity(I/Io ): 2.76(1), 3.23(0.7), 2.5(0.6),
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:
PEClinohedrite = 17.59 barns/electronU=PEClinohedrite x r Electron 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
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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:
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