Earlandite Mineral Data

General Earlandite Information

Chemical Formula:

Ca3(C6H5O7)•4(H2O)

Composition:

Molecular Weight = 570.50 gm

Calcium 21.08 % Ca

Hydrogen 3.18 % H

Carbon 25.26 % C

Oxygen 50.48 % O

______

100.00 %

Empirical Formula:

Ca₃2(C₆)2(H₅)2(O₇)•4(H₂O)

Environment:

Ocean bottom sample at 2,580 meters.

IMA Status:

Valid Species (Pre-IMA) 1936

Locality:

Weddell sea, Antarctica. Link to MinDat.org Location Data.

Name Origin:

Named for Arthur Earland, English oceanographer.

Name Pronunciation:

Earlandite + Pronunciation

Synonym:

Calcium Citrate

Search for Earlandite Images

Images:

Image not yet available on Webmineral.com

Try searching images.google.com or Mindat Picture Gallary for mineral pictures. Caution: The images retrieved may not be appropriate.

Earlandite Crystallography

Axial Ratios:

a:b:c =5.2175:1:1.7807

Cell Dimensions:

a = 30.94, b = 5.93, c = 10.56, Z = 4; beta = 93.74° V = 1,933.36 Den(Calc)= 1.96

Crystal System:

MonoclinicSpace Group: Unk

$Help on X Ray Diffraction:$ X Ray Diffraction:

By Intensity(I/I_o): 15.5(1), 7.7(0.5), 5.2(0.35),

Physical Properties of Earlandite

Color:

White, Light yellow.

Density:

1.95

Habit:

Nodular - Tuberose forms having irregular protuberances over the surface.

Streak:

white

Optical Properties of Earlandite

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

Electron Density:

Bulk Density (Electron Density)=2.02 gm/cc
note: Specific Gravity of Earlandite =1.96 gm/cc.

Fermion Index:

Fermion Index = 0.003310658
Boson Index = 0.996689342

Photoelectric:

PE_Earlandite= 2.72 barns/electron
U=PE_Earlandite x rElectron Density= 5.49 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Earlandite is Not Radioactive

Earlandite Classification

Dana Class:

50.02.02.01 (50)Salts of Organic Acids

(50.02)(Mellitates, Citrates, Cyanates, and Acetates)

(50.02.02)Dana Group

50.02.02.01 Earlandite Ca3(C6H5O7)•4(H2O) Unk Mono

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

References:

NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)

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

Search for Earlandite using:

[AOL] [Bing] [Dog Pile] [GeoScienceWorld] [HotBot] [Ixquick] [Lycos] [MAMMA] [Scirus] [Teoma] [WebCrawler] [Wikipedia] [YAHOO]

Visit our Advertisers for Earlandite :

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

Ask about Earlandite 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 Español

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

Earlandite

Ca3(C6H5O7)•4(H2O)
Dana No: 50.02.02.01 Strunz No: 10.AC.10
Locality:

Notes: