Hydromagnesite Mineral Data

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

Advertisment
For more than thirty (30) years, Excalibur Mineral Corp. has been providing private collectors, researchers, major universities and museums throughout the world with reliably identified, rare and unusual mineral samples for science an
 Our Mission is Simple: RMS will be the go-to portal for all mineral, gem and rock shows in the USA
 Weinrich Minerals, A Dealer in Fine Mineral Specimens - Since 1989. We buy collections and single high quality specimens.
 Adamsminerals.com- Online mineral store front for mineral collectors

General Hydromagnesite Information

Help on Chemical Formula: Chemical Formula: Mg5(CO3)4(OH)2•4(H2O)
Help on Composition: Composition: Molecular Weight = 467.64 gm
   Magnesium  25.99 %  Mg   43.09 % MgO
   Hydrogen    2.16 %  H    19.26 % H2O
   Carbon     10.27 %  C    37.64 % CO2
   Oxygen     61.58 %  O
             ______        ______ 
             100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Mg5(CO3)4(OH)2•4(H2O)
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1835
Help on Locality: Locality: Castle Point, Hoboken, Hudson County, New Jersey, USA Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named after its chemical composition.
Help on Name Pronunciation: Name Pronunciation: Hydromagnesite + Pronunciation Say HYDROMAGNESITE
Help on Synonym: Synonym: ICSD 920
  PDF 25-513
 

Hydromagnesite Image

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

Hydromagnesite

Comments: White, blocky crystals of hydromagnesite.
Location: Lobming, Styria, Austria. Scale: Picture size 5 mm.
© Thomas Witzke / Abraxas-Verlag
Click Here for Larger Hydromagnesite Image in a New Browser Window Images:
Click Here for Larger Hydromagnesite Image

Hydromagnesite   Pokrovskite

Comments: Tan spherical pokrovskite on serpentinite rock with white hydromagnesite sprays.
Location: KCA Quarry, San Benito County, California, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Hydromagnesite Crystallography
Help on Axial Ratios: Axial Ratios: a:b:c =1.1308:1:0.9373
Help on Cell Dimensions: Cell Dimensions: a = 10.11, b = 8.94, c = 8.38, Z = 2; beta = 114.58° V = 688.78 Den(Calc)= 2.25
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): 5.79(1), 2.899(0.82), 9.2(0.39),
Help on Forms: Forms:

Mouse
Dbl Clk - Start-Stop Rotation
RMB - Cycle Display Modes
Drag1 - Manipulate Crystal
Drag2 - Resize
Keyboard
S - Stereo
I - Indicies
<space> - Start-Stop Rotation
F - Fit to Screen
M - Menu
Help on Above

Forms: ( 1 1 0) ( 0 1 1) ( 1 0 0)

Warning: this large pop-up is very compute intensive and may not work well with some computers.
 

Physical Properties of Hydromagnesite

Help on Cleavage: Cleavage: {010} Perfect, {100} Distinct
Help on Color: Color: Colorless, White.
Help on Density: Density: 2.16 - 2.2, Average = 2.18
Help on Diaphaneity: Diaphaneity: Transparent
Help on Fracture: Fracture: Uneven - Flat surfaces (not cleavage) fractured in an uneven pattern.
Help on Habit: Habit: Acicular - Occurs as needle-like crystals.
Help on Habit: Habit: Encrustations - Forms crust-like aggregates on matrix.
Help on Hardness: Hardness: 3.5 - Copper Penny
Help on Luminescence: Luminescence: Fluorescent, Short UV=green, Long UV=bluish white.
Help on Luster: Luster: Silky
Help on Magnetism: Magnetism: Nonmagnetic
Help on Streak: Streak: white
 

Optical Properties of Hydromagnesite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.055 (Good) - where the CI = (1-KPDmeas/KC)
CI calc= -0.022 (Excellent) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2363,KPDmeas= 0.2439,KC= 0.2311
Ncalc = 1.5 - 1.52
Help on Optical Data: Optical Data: Biaxial (+), a=1.523, b=1.527, g=1.545, bire=0.0220, 2V(Calc)=52, 2V(Meas)=30-90. Dispersion none.
Help on Pleochroism (x): Pleochroism (x): none.
Help on Pleochroism (y): Pleochroism (y): none.
Help on Pleochroism (z): Pleochroism (z): none.
 

Calculated Properties of Hydromagnesite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=2.29 gm/cc
note: Specific Gravity of Hydromagnesite =2.25 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.02
Boson Index = 0.98
Help on Photoelectric: Photoelectric: PEHydromagnesite = 0.77 barns/electron
U=PEHydromagnesite x rElectron Density= 1.76 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Hydromagnesite is Not Radioactive
 

Hydromagnesite Classification
Help on Dana Class: Dana Class: 16b.07.01.01 (16b)Carbonates - Hydroxyl or Halogen
  (16b.07)Dana Type
  (16b.07.01)Dana Group
 
16b.07.01.01 Hydromagnesite Mg5(CO3)4(OH)2•4(H2O) P 21/c 2/m
 
16b.07.01.02 Widgiemoolthalite (Ni,Mg)5(CO3)4(OH)2•4-5(H2O) P 21/c 2/m
Help on Strunz Class: Strunz Class: 05.DA.05 05 - CARBONATES (NITRATES)
  05.D - Carbonates with Additional Anions, with H2O
  05.DA -With medium-sized cations
 
05.DA.05 Dypingite Mg5(CO3)4(OH)2•5(H2O) Unk. Mono
 
05.DA.05 Giorgiosite Mg5(CO3)4(OH)2•5(H2O) ? Mono
 
05.DA.05 Hydromagnesite Mg5(CO3)4(OH)2•4(H2O) P 21/c 2/m
 
05.DA.05 Widgiemoolthalite (Ni,Mg)5(CO3)4(OH)2•4-5(H2O) P 21/c 2/m
 

Other Hydromagnesite Information
Help on References: References: NAME( Duda&Rejl90) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Ford32)
Help on See Also: See Also: Links to other databases for Hydromagnesite :
1 - Am. Min. Crystal Structure Database
2 - Amethyst Galleries' Mineral Gallery
3 - Athena
4 - EUROmin Project
5 - Ecole des Mines de Paris
6 - GeoScienceWorld
7 - Google Images
8 - Google Scholar
9 - Handbook of Mineralogy (MinSocAm)
10 - Handbook of Mineralogy (UofA)
11 - MinDAT
12 - Mineralienatlas (Deutsch)
13 - Online Mineral Museum
14 - QUT Mineral Atlas
15 - Ruff.Info
16 - WWW-MINCRYST

Search for Hydromagnesite using:

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

Visit our Advertisers for Hydromagnesite :

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

Ask about Hydromagnesite 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 Hydromagnesite Specimen Label here :

Hydromagnesite

Mg5(CO3)4(OH)2•4(H2O)
Dana No: 16b.07.01.01 Strunz No: 05.DA.05
Locality:

 

Notes: