Dashkovaite  Mineral Data

Dashkovaite Mineral Data

Search Webmineral :
   
Home Crystal jmol jPOWD Chem X Ray Dana Strunz Properties A to Z Images Share
      News Help About


General Dashkovaite Information

Help on Chemical  Formula: Chemical Formula: Mg(HCOO)2•2(H2O)
Help on Composition: Composition: Molecular Weight = 172.49 gm
   Magnesium  14.09 %  Mg
   Hydrogen    3.33 %  H
   Carbon     27.85 %  C
   Oxygen     54.73 %  O
             ______ 
             100.00 % 
Help on Empirical Formula: Empirical Formula: MgH5.72(C2)O5.9
Help on Environment: Environment: Found in dolomite marble core. Second natural formate.
Help on IMA Status: IMA Status: Approved IMA 2000 (Dana # Added)
Help on Locality: Locality: Korshunovskoye boron deposit in the Irkutsk district, Siberia. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for E. R. Dashkova (1744-1796), former director of the Saint Petersburg Academy of Sciences.
Help on Synonym: Synonym: IMA2000-006
 

Dashkovaite Image

Click Here for Larger Dashkovaite Image in a New Browser Window Images:
Click Here for Larger Dashkovaite Image

Dashkovaite

Comments: White fibrous dashkovaite.
Location: Buriatia (Buryatia) Republic, Transbaikalia (Zabaykalye), Eastern-Siberian Region, Russia. Scale: Picture size 2.3 mm.
© Thomas Witzke / Abraxas-Verlag

Dashkovaite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =1.2083:1:1.3118
Help on Cell Dimensions: Cell Dimensions: a = 8.64, b = 7.15, c = 9.38, Z = 4; beta = 98° V = 573.82 Den(Calc)= 2.00
Help on Crystal System: Crystal System: Monoclinic - PrismaticH-M Symbol (2/m) Space Group: P 21/c
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.4(1)(112), 4.9(0.9)(111), 3.68(0.8)(210),4.3(0.7)(200), 4.64(0.7)(002), 2.87(0.4), 3.05(0.4),
Click Here for Large Dashkovaite Structure Window 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


Osaki K , Nakai Y , Watanabe T , Journal of the Physical Society of Japan , 19 (1964) p.717-723, The crystal structure of magnesium formate dihydrate and manganous formate, dihydrate, Locality: synthetic

 

Physical Properties of Dashkovaite

Help on Color: Color: White.
Help on Diaphaneity: Diaphaneity: Translucent
Help on Fracture: Fracture: Sectile - Curved shavings or scrapings produced by a knife blade, (e.g. graphite).
Help on Habit: Habit: Aggregates - Made of numerous individual crystals or clusters.
Help on Habit: Habit: Fibrous - Crystals made up of fibers.
Help on Hardness: Hardness: 1 - Talc
Help on Luster: Luster: Vitreous (Glassy)
Help on Streak: Streak: white
 

Optical Properties of Dashkovaite

Help on Optical Data: Optical Data: Biaxial (+), a=1.465, b=1.486, g=1.516, bire=0.0510
 

Calculated Properties of Dashkovaite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=2.06 gm/cc
note: Specific Gravity of Dashkovaite =2.00 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.01
Boson Index = 0.99
Help on Photoelectric: Photoelectric: PEDashkovaite = 0.54 barns/electron
U=PEDashkovaite x rElectron Density= 1.11 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Dashkovaite is Not Radioactive
 

Dashkovaite Classification

Help on  Dana Class: Dana Class: 50.02.06.02 (50)Salts of Organic Acids
  (50.02)(Mellitates, Citrates, Cyanates, and Acetates)
  (50.02.06)Formicaite Series
 
50.02.06.01 Formicaite! Ca(HCOO)2 P 41212 4 2 2
 
50.02.06.02 Dashkovaite! Mg(HCOO)2•2(H2O) P 21/c 2/m
Help on  Strunz Class: Strunz Class: 10.AA.10 10 - ORGANIC COMPOUNDS
  10.A - Salts of Organic Acids
  10.AA -Formates, Acetates, etc.
 
10.AA.10 Dashkovaite! Mg(HCOO)2•2(H2O) P 21/c 2/m
 

Other Dashkovaite Information

Help on References: References: NAME( AmMin, Vol 86, p 1534) PHYS. PROP.(AmMin, Vol 86, p 1534) OPTIC PROP.(AmMin, Vol 86, p 1534)
Help on See Also: See Also: Links to other databases for Dashkovaite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - GeoScienceWorld
4 - Google Images
5 - Google Scholar
6 - Handbook of Mineralogy (MinSocAm)
7 - Handbook of Mineralogy (UofA)
8 - MinDAT
9 - Mineralienatlas (Deutsch)
10 - Online Mineral Museum
11 - QUT Mineral Atlas
12 - Ruff.Info

Search for Dashkovaite using:

Google
 
Web webmineral.com
[AOL] [Bing] [Dog Pile] [GeoScienceWorld] [HotBot] [Ixquick] [Lycos] [MAMMA] [Scirus] [Teoma] [WebCrawler] [Wikipedia] [YAHOO]

Visit our Advertisers for Dashkovaite :

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

Ask about Dashkovaite 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 Espaņol

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

Dashkovaite

Mg(HCOO)2•2(H2O)
Dana No: 50.02.06.02 Strunz No: 10.AA.10
Locality:

 

Notes: