Mineralogy Database

Earlandite Mineral Data

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General Earlandite Information

Help on Chemical  Formula: Chemical Formula: Ca3(C6H5O7)•4(H2O)
Help on Composition: Composition: Molecular Weight = 570.50 gm
   Calcium   21.08 %  Ca
   Hydrogen   3.18 %  H
   Carbon    25.26 %  C
   Oxygen    50.48 %  O
            100.00 % 
Help on Empirical Formula: Empirical Formula: Ca32(C6)2(H5)2(O7)•4(H2O)
Help on Environment: Environment: Ocean bottom sample at 2,580 meters.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1936
Help on Locality: Locality: Weddell sea, Antarctica. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Arthur Earland, English oceanographer.
Help on Name Pronunciation: Name Pronunciation: Earlandite + Pronunciation Say EARLANDITE
Help on Synonym: Synonym: Calcium Citrate

Earlandite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =5.2175:1:1.7807
Help on Cell Dimensions: Cell Dimensions: a = 30.94, b = 5.93, c = 10.56, Z = 4; beta = 93.74° V = 1,933.36 Den(Calc)= 1.96
Help on Crystal System: Crystal System: Monoclinic Space Group: Unk
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 15.5(1), 7.7(0.5), 5.2(0.35),

Physical Properties of Earlandite

Help on Color: Color: White, Light yellow.
Help on Density: Density: 1.95
Help on Habit: Habit: Nodular - Tuberose forms having irregular protuberances over the surface.
Help on Streak: Streak: white

Optical Properties of Earlandite

Help on Optical Data: Optical Data: Biaxial (+), a=1.52, b=1.53, g=1.58, bire=0.0600, 2V(Calc)=50, 2V(Meas)=60.

Calculated Properties of Earlandite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=2.02 gm/cc
note: Specific Gravity of Earlandite =1.96 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.003310658
Boson Index = 0.996689342
Help on Photoelectric: Photoelectric: PEEarlandite = 2.72 barns/electron
U=PEEarlandite x rElectron Density= 5.49 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Earlandite is Not Radioactive

Earlandite Classification

Help on  Dana Class: Dana Class: (50)Salts of Organic Acids
  (50.02)(Mellitates, Citrates, Cyanates, and Acetates)
  (50.02.02)Dana Group Earlandite Ca3(C6H5O7)•4(H2O) Unk Mono
Help on  Strunz Class: Strunz Class: 10.AC.10 10 - ORGANIC COMPOUNDS
  10.A - Salts of Organic Acids
  10.AC -Benzene Salts
10.AC.10 Earlandite Ca3(C6H5O7)•4(H2O) Unk Mono

Other Earlandite Information

Help on References: References: NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)
Help on See Also: See Also: Links to other databases for Earlandite :
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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Dana No: Strunz No: 10.AC.10





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