Clinotyrolite Mineral Data
General Clinotyrolite Information
Chemical Formula:
Ca2Cu9[(As,S)O4]4(OH)10•10(H2O)
Composition:
Molecular Weight = 1,562.71 gm
Calcium 5.13 % Ca 7.18 % CaO
Copper 36.60 % Cu 41.20 % Cu2 O
Arsenic 18.22 % As 27.94 % As2 O5
Hydrogen 1.97 % H 17.58 % H2 O
Sulfur 0.62 % S 1.54 % SO3
Oxygen 37.47 % O
______ ______
100.00 % 95.44 % = TOTAL OXIDE
Empirical Formula:
Ca2 Cu9 (AsO4 )3.8 (SO4 )0.3 (OH)9.9 •10.3(H2 O)
Environment:
In the oxidized zone of a copper deposit.
IMA Status:
Approved IMA 1980
Locality:
Dongchuan copper mine, Yunnan Province, China. Link to MinDat.org Location Data.
Name Origin:
For the monoclinic symmetry and relationship to tyrolite.
Name Pronunciation:
Clinotyrolite + Pronunciation
Clinotyrolite Image
Images:
Clinotyrolite Crystallography
Axial Ratios:
a:b:c =1.8908:1:4.9658
Cell Dimensions:
a = 10.513, b = 5.56, c = 27.61, Z = 2; beta = 94° V = 1,609.94 Den(Calc)= 3.22
Crystal System:
Monoclinic - Prismatic H-M Symbol (2/m) Space Group: P 2/a
X Ray Diffraction:
By Intensity(I/Io ): 2.673(1), 2.96(1), 4.81(0.9),
Physical Properties of Clinotyrolite
Color:
Emerald green.
Density:
3.22
Diaphaneity:
Semitransparent
Habit:
Foliated - Two dimensional platy forms.
Habit:
Radial - Crystals radiate from a center without producing stellar forms (e.g. stibnite)
Luster:
Silky - Pearly
Streak:
light green
Optical Properties of Clinotyrolite
Gladstone-Dale:
CI meas = 0.034 (Excellent) - where the CI = (1-KPDmeas /KC ) CI calc = 0.034 (Excellent) - where the CI = (1-KPDcalc /KC )
KPDcalc = 0.2118,KPDmeas = 0.2118,KC = 0.2193 Ncalc = 1.71
Optical Data:
Biaxial (-), a=1.666, b=1.686, g=1.694, bire=0.0280, 2V(Calc)=62, 2V(Meas)=65-66.
Calculated Properties of Clinotyrolite
Electron Density:
Bulk Density (Electron Density)=3.11 gm/cc note: Specific Gravity of Clinotyrolite =3.22 gm/cc.
Fermion Index:
Fermion Index = 0.0002982302 Boson Index = 0.9997017698
Photoelectric:
PEClinotyrolite = 28.92 barns/electronU=PEClinotyrolite x r Electron Density= 89.93 barns/cc.
Radioactivity:
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Clinotyrolite is Not Radioactive
Clinotyrolite Classification
Dana Class:
42.04.04.01 (42) Hydrated Phosphates, etc., Containing Hydroxyl or Halogen
(42.04) where (AB)5 (XO4)2 Zq � x(H2O)
(42.04.04) Dana Group
42.04.04.01 Clinotyrolite Ca2Cu9[(As,S)O4]4(OH)10•10(H2O) P 2/a 2/m
Strunz Class:
08.DM.10 08 - PHOSPHATES, ARSENATES, VANADATES
08.D - Phosphates, etc
08.DM -With large and medium-sized cations, (OH, etc.):RO4 > 2:1
08.DM.10 Clinotyrolite Ca2Cu9[(As,S)O4]4(OH)10•10(H2O) P 2/a 2/m
08.DM.10 Tyrolite CaCu5(AsO4)2(CO3)(OH)4•6(H2O) Pmma 2/m 2/m 2/m
Other Clinotyrolite Information
References:
NAME( AntBidBlaNic4) PHYS. PROP.(AntBidBlaNic4) OPTIC PROP.(AntBidBlaNic4)
See Also:
Links to other databases for Clinotyrolite :
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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Clinotyrolite
Ca2Cu9[(As,S)O4]4(OH)10•10(H2O)
Dana No: 42.04.04.01 Strunz No: 08.DM.10
Locality:
Notes:
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