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Dovyrenite Mineral Data
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General Dovyrenite Information
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 Chemical Formula: |
Ca6Zr[Si2O7]2(OH)4 |
| Composition: |
Molecular Weight = 728.49 gm |
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Calcium 31.57 % Ca 44.18 % CaO |
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Hafnium 0.10 % Hf 0.12 % HfO2 |
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Magnesium 0.08 % Mg 0.13 % MgO |
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Zirconium 12.40 % Zr 16.75 % ZrO2 |
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Titanium 0.03 % Ti 0.05 % TiO2 |
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Manganese 0.02 % Mn 0.02 % MnO |
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Niobium 0.03 % Nb 0.04 % Nb2O5 |
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Iron 0.21 % Fe 0.28 % FeO |
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Silicon 15.42 % Si 32.99 % SiO2 |
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Hydrogen 0.61 % H 5.46 % H2O |
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Oxygen 39.53 % O |
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______ ______ |
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100.00 % 100.00 % = TOTAL OXIDE |
| Empirical Formula: |
Ca5.73Mg0.02Fe2+0.02Mn2+0.002Hf0.004Zr0.99Nb0.002Ti0.005Si4(O)13.58OH4.41 |
| Environment: |
Skarned carbonate xenoliths in a foshagite-vesuvianite skarn. New structure, possible heterophyllosilicate. |
| IMA Status: |
Approved IMA 2007 (Dana # Added) |
| Locality: |
Dovyren Bald Mountain (Ioko-Dovyren layered massif), Siberia, Russia. Link to MinDat.org Location Data. |
| Name Origin: |
Named after the locality. |
| Synonym: |
IMA2007-002 |
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Dovyrenite Image |
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Images:
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Dovyrenite
Comments: BSE image of a large dovyrenite crystal in vesuvianite-foshagite skarn. Abbrev: dovyrenite (Dov), foshagite (Fsh), vesuvianite (Ves), calcite (Cal), (Mineralogia Polonica, v38: no 1, p18).
Location: Dovyren Bald Mountain (Ioko-Dovyren layered massif), Siberia, Russia..
Scale: See Image.
© Mineralogia Polonica |
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Images:
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Dovyrenite
Comments: Dovyrenite crystal with preserved orthorhombic prism {0kl}. Abbrev: dovyrenite (Dov), vesuvianite (Ves). (Mineralogia Polonica, v38: no 1, p19).
Location: Dovyren Bald Mountain (Ioko-Dovyren layered massif), Siberia, Russia..
Scale: See Image.
© Mineralogia Polonica |
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Dovyrenite Crystallography
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| Axial Ratios: |
a:b:c =0.3006:1:0.1978 |
| Cell Dimensions: |
a = 5.666, b = 18.844, c = 3.728, Z = 1; V = 398.04 Den(Calc)= 3.04 |
| Crystal System: |
Orthorhombic - Dipyramidal H-M Symbol (2/m 2/m 2/m) Space Group: Pnnm |
| X Ray Diffraction: |
By Intensity(I/Io): 3.0727(1), 5.426(0.63), 3.1406(0.39),2.7468(0.36), 1.864(0.33), 1.6848(0.26), 1.8786(0.26), 2.5979(0.25), |
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Physical Properties of Dovyrenite
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| Cleavage: |
{010} Perfect, {100} Imperfect |
| Color: |
Colorless. |
| Diaphaneity: |
Transparent |
| Fracture: |
Brittle - Uneven - Very brittle fracture producing uneven fragments. |
| Habit: |
Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline). |
| Luster: |
Vitreous (Glassy) |
| Streak: |
white |
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Optical Properties of Dovyrenite
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| Gladstone-Dale: |
CI calc= -0.012 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2191,KC= 0.2165
Ncalc = 1.66 |
| Optical Data: |
Biaxial (+), a=1.659, g=1.676, bire=0.0170 |
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Calculated Properties of Dovyrenite
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| Electron Density: |
Bulk Density (Electron Density)=3.01 gm/cc
note: Specific Gravity of Dovyrenite =3.04 gm/cc.
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| Fermion Index: |
Fermion Index = 0.02
Boson Index = 0.98 |
| Photoelectric: |
PEDovyrenite = 21.70 barns/electron
U=PEDovyrenite x rElectron Density= 65.27 barns/cc.
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Dovyrenite is Not Radioactive |
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Dovyrenite Classification
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| Dana Class: |
56.02.05.07 (56)Sorosilicate Si2O7 Groups and O, OH, F. and H2O |
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(56.02)with cations in [4] and/or >[4] coordination |
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(56.02.05)Mosandrite and related species |
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56.02.05.01 Mosandrite Na(Na,Ca)2(Ca,Ce,Y)4(Ti,Nb,Zr)(Si2O7)2(O,F)2F3 P 21 2 |
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56.02.05.02 Nacareniobsite-(Ce) NbNa3Ca3(Ce,La)(Si2O7)2OF3 P 21/a 2/m |
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56.02.05.03 Fersmanite Ca4(Na,Ca)4(Ti,Nb)4(Si2O7)2O8F3 C 2/c 2/m |
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56.02.05.04 Gotzenite (Ca,Na)3(Ti,Al)Si2O7(F,OH)2 P1 1 |
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56.02.05.05 Rinkite! Na(Na,Ca)2(Ca,Ce)4(Ti,Nb)(Si2O7)2(O,F)2 P 21 2 |
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56.02.05.06 IMA2008-024! (Ca,Na,REE,[])7(Nb,Ti)[Si2O7]2OF3 Cc m |
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56.02.05.07 Dovyrenite! Ca6Zr[Si2O7]2(OH)4 Pnnm 2/m 2/m 2/m |
| Strunz Class: |
09.BE.23 09 - SILICATES (Germanates) |
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09.B - Sorosilicates |
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09.BE -Si2O7 groups with additional anions; |
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09.BE.23 Dovyrenite! Ca6Zr[Si2O7]2(OH)4 Pnnm 2/m 2/m 2/m |
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Other Dovyrenite Information
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| References: |
NAME( Mineralogia Polonica, v38: no 1) PHYS. PROP.(Mineralogia Polonica, v38: no 1) OPTIC PROP.(Mineralogia Polonica, v38: no 1) |
| See Also: |
Links to other databases for Dovyrenite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - GeoScienceWorld
4 - Google Images
5 - Google Scholar
6 - MinDAT
7 - Mineralienatlas (Deutsch)
8 - Online Mineral Museum
9 - QUT Mineral Atlas
10 - Ruff.Info
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Dovyrenite
Ca6Zr[Si2O7]2(OH)4
Dana No: 56.02.05.07 Strunz No: 09.BE.23
Locality:
Notes:
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