Mellite Mineral Data + 
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- 50.2.1.1 Mellite Al2[C6(COO)6]·16(H2O) P 4122,P 4322 4 2 2
- IX/A.02-03 Dashkovaite! Mg(HCOO)2·2(H2O) P 21/c 2/m
- IX/A.02-05 Formicaite! Ca(HCOO)2 P 41212 4 2 2
- IX/A.02-10 Mellite Al2[C6(COO)6]·16(H2O) P 4122,P 4322 4 2 2
- IX/A.02-16 Hoganite! Cu(CH3COO)2·H2O C 2/c 2/m
- IX/A.02-18 Paceite! CaCu(CH3COO)4·6(H2O) I 4/m 4/m
- IX/A.02-20 Calclacite Ca[Cl2/CH3COO]·10(H2O) P 21/a 2/m
- IX/A.02-30 Earlandite Ca3(C6H5O7)·4(H2O) Unk Mono
- IX/A.02-40 Kafehydrocyanite* K4Fe(CN)6·3(H2O) I 41/a 4/m
- IX/A.02-50 Julienite* Na2Co(SCN)4·8(H2O) P 41/n 4/m
- IX/A.02-60 Abelsonite NiC31H32N4 P1 or P1 Tri
General Mellite Information |
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 Chemical Formula: |
Al2[C6(COO)6]·16(H2O) | ||
| 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 | |||
| Empirical Formula: |
Al2C12H12·18(H2O) | ||
| IMA Status: |
Valid Species (Pre-IMA) 1793 | ||
| Locality: |
Arten, Thüringen, Germany Link to MinDat.org Location Data. | ||
| Name Origin: |
From the Latin mel - "honey." | ||
| Synonym: |
ICSD 41122 | ||
| PDF 42-1501 | |||
Mellite Image | |||
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Images:
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Mellite Crystallography |
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| Axial Ratios: |
a:c = 1:1.05887 | ||
| Cell Dimensions: |
a = 21.91, c = 23.2, Z = 16; V = 11,137.12 Den(Calc)= 1.27 | ||
| Crystal System: |
Tetragonal - TrapezohedralH-M Symbol (4 2 2) Space Group: P 4122,P 4322 | ||
| X Ray Diffraction: |
By Intensity(I/Io): 7.99(1), 4.23(0.7), 5.8(0.55), | ||
Physical Properties of Mellite |
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| Cleavage: |
[011] Imperfect | ||
| Color: |
Brown, Brownish white, Colorless, Yellow, Golden brown. | ||
| Density: |
1.55 - 1.65, Average = 1.6 | ||
| Diaphaniety: |
Transparent to Translucent | ||
| Fracture: |
Conchoidal - Fractures developed in brittle materials characterized by smoothly curving surfaces, (e.g. quartz). | ||
| Habit: |
Crystalline - Coarse - Occurs as well-formed coarse sized crystals. | ||
| Habit: |
Massive - Granular - Common texture observed in granite and other igneous rock. | ||
| Hardness: |
2-2.5 - Gypsum-Finger Nail | ||
| Luminescence: |
None. | ||
| Luster: |
Vitreous (Glassy) | ||
| Streak: |
white | ||
Optical Properties of Mellite |
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| Dichroism (e): |
none. | ||
| Dichroism (w): |
none. | ||
| 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 |
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| Optical Data: |
Uniaxial (-), e=1.511, w=1.539, bire=0.0280. | ||
Calculated Properties of Mellite |
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| Electron Density: |
relectron=1.74 gm/cc |
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| Fermion Index |
Fermion Index = 0.00323 Boson Index = 0.99677 |
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| Photoelectric: |
PEMellite = 0.49 barns/electron |
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Mellite is Not Radioactive |
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Mellite Classification |
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| Dana Class: |
50.2.1.1 (50)Salts of Organic Acids | ||
| (50.2)(Mellitates, Citrates, Cyanates, and Acetates) | |||
| (50.2.1)Dana Group | |||
| Strunz Class: |
IX/A.02-10 IX - Organic compunds | ||
| IX/A - Salts from organic acids. Other organic salts, a.o. mellates and citrates. | |||
| IX/A.02 - Mellite - Abelsonite (?) series | |||
Other Mellite Information |
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| References: |
NAME( Duda&Rejl90) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Ford32) | ||
| See Also: |
Links to other databases for Mellite : 1 -Am. Min. Crystal Structure Database 2 -Athena 3 - Crocoite.com Mineral Locations 4 - EUROmin Project 5 -Google Images 6 -Google Scholar 7 -Handbook of Mineralogy (UofA) 8 -MinDAT 9 -MinMax(Deutsch) 10 -MinMax(English) 11 -Mineralienatlas (Deutsch) 12 -QUT Mineral Atlas 13 - WWW-MINCRYST 14 -École des Mines de Paris Search for Mellite using: Visit our Advertisers for Mellite : Translate Mellite Mineral Data : Ask about Mellite here : Print or Cut-and-Paste your Mellite Specimen Label here :
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