Mellite Mineral Data

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



[New Updates] [Gallery 1] [Gallery 2] [Gallery 3] [Rock Shop Gallery]
Serving the mineral collector and educator community since 1970
Over 900,000 mineral specimens in stock
New minerals acquired weekly - Wright's Rock Shop


General Mellite Information

Help on Chemical Formula: Chemical Formula: Al2[C6(COO)6]•16(H2O)
Help on Composition: Composition: Molecular Weight = 534.47 gm
   Aluminum  10.10 %  Al   19.08 % Al2O3
   Hydrogen   9.05 %  H    80.90 % H2O
   Carbon    26.97 %  C
   Oxygen    53.88 %  O
            ______        ______ 
            100.00 %       99.97 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Al2C12H12•18(H2O)
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1793
Help on Locality: Locality: Arten, Thüringen, Germany Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: From the Latin mel - "honey."
Help on Name Pronunciation: Name Pronunciation: Mellite Say MELLITE
Help on Synonym: Synonym: ICSD 41122
  PDF 42-1501
 

Mellite Image

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

Mellite

Comments: Specimen of crystalline mellite. Mellite is a naturally occurring organic mineral species.
Location: Csordakhut, Tatabanya, Hungary. Scale: 4 x 3 cm.
© John Veevaert

Mellite Crystallography
Help on Axial Ratios: Axial Ratios: a:c = 1:1.05887
Help on Cell Dimensions: Cell Dimensions: a = 21.91, c = 23.2, Z = 16; V = 11,137.12 Den(Calc)= 1.27
Help on Crystal System: Crystal System: Tetragonal - TrapezohedralH-M Symbol (4 2 2) Space Group: P 4122,P 4322
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 7.99(1), 4.23(0.7), 5.8(0.55),
Click Here for Large Mellite 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


Robl C , Kuhs W F , Journal of Solid State Chemistry , 92 (1991) p.101-109, A neutron diffraction study on hydrogen bonding in the mineral mellite (Al2[C6(COO)6]*16H2O) at 15 K, Sample: T = 15 K, Locality: Tatabanya, Hungary

 

Physical Properties of Mellite

Help on Cleavage: Cleavage: {011} Imperfect
Help on Color: Color: Brown, Brownish white, Colorless, Yellow, Golden brown.
Help on Density: Density: 1.55 - 1.65, Average = 1.6
Help on Diaphaneity: Diaphaneity: Transparent to Translucent
Help on Fracture: Fracture: Conchoidal - Fractures developed in brittle materials characterized by smoothly curving surfaces, (e.g. quartz).
Help on Habit: Habit: Crystalline - Coarse - Occurs as well-formed coarse sized crystals.
Help on Habit: Habit: Massive - Granular - Common texture observed in granite and other igneous rock.
Help on Hardness: Hardness: 2-2.5 - Gypsum-Finger Nail
Help on Luminescence: Luminescence: Fluorescent and Phosphorescent, Short UV=blue, Long UV=blue.
Help on Luster: Luster: Vitreous (Glassy)
Help on Streak: Streak: white
 

Optical Properties of Mellite

Help on Dichroism (e): Dichroism (e): none.
Help on Dichroism (w): Dichroism (w): none.
Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.043 (Good) - where the CI = (1-KPDmeas/KC)
CI calc= -0.314 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.4134,KPDmeas= 0.3281,KC= 0.3145
Ncalc = 1.4 - 1.52
Help on Optical Data: Optical Data: Uniaxial (-), e=1.511, w=1.539, bire=0.0280.
 

Calculated Properties of Mellite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=1.74 gm/cc
note: Specific Gravity of Mellite =1.60 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.0032386455
Boson Index = 0.9967613545
Help on Photoelectric: Photoelectric: PEMellite = 0.49 barns/electron
U=PEMellite x rElectron Density= 0.85 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Mellite is Not Radioactive
 

Mellite Classification
Help on Dana Class: Dana Class: 50.02.01.01 (50)Salts of Organic Acids
  (50.02)(Mellitates, Citrates, Cyanates, and Acetates)
  (50.02.01)Dana Group
 
50.02.01.01 Mellite Al2[C6(COO)6]•16(H2O) P 4122,P 4322 4 2 2
Help on Strunz Class: Strunz Class: 10.AC.05 10 - ORGANIC COMPOUNDS
  10.A - Salts of Organic Acids
  10.AC -Benzene Salts
 
10.AC.05 Mellite Al2[C6(COO)6]•16(H2O) P 4122,P 4322 4 2 2
 

Other Mellite 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 Mellite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - Ecole des Mines de Paris
5 - Google Images
6 - Google Scholar
7 - Handbook of Mineralogy (MinSocAm)
8 - Handbook of Mineralogy (UofA)
9 - MinDAT
10 - MinMax(Deutsch)
11 - MinMax(English)
12 - Mineralienatlas (Deutsch)
13 - QUT Mineral Atlas
14 - Ruff.Info
15 - WWW-MINCRYST

Search for Mellite using:

Google
 
Web webmineral.com
[ALTAVISTA] [AOL] [All-The-Web] [HotBot] [Ixquick] [MAMMA] [MSN.COM] [Netscape] [Scirus] [Teoma] [Wikipedia] [YAHOO]

Visit our Advertisers for Mellite :

AA Mineral Specimens

B & L Fine Minerals

Crystalarium.com

Dan Weinrich Fine Minerals

Dan Weinrich Auctions

Dakota Matrix

Excalibur Minerals

Exceptional Minerals

Fabre Minerals

Heliodor

John Betts Fine Minerals

Mason's Minerals

Mineral News

Mineral of the Month Club

Wrights Rock Shop

Translate Mellite Mineral Data :

Ask about Mellite 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 Mellite Specimen Label here :

Mellite

Al2[C6(COO)6]•16(H2O)
Dana No: 50.02.01.01 Strunz No: 10.AC.05
Locality:

 

Notes: