Mangangordonite Mineral Data (original) (raw)
General Mangangordonite Information
Chemical Formula:
(Mn++,Fe++,Mg)Al2(PO4)2(OH)2•8(H2O)
Composition:
Molecular Weight = 480.92 gm
Magnesium 0.20 % Mg 0.34 % MgO
Manganese 8.00 % Mn 10.33 % MnO
Aluminum 11.78 % Al 22.26 % Al2O3
Iron 3.48 % Fe 4.48 % FeO
Phosphorus 12.88 % P 29.51 % P2O5
Hydrogen 3.77 % H 33.71 % H2O
Oxygen 59.88 % O
______ ______
100.00 % 100.63 % = TOTAL OXIDE
Empirical Formula:
Mn2+0.7Fe2+0.3Mg0.04Al2.1(PO4)2(OH)2�8(H2O)
Environment:
Secondary mineral in complex zoned granite pegmatites.
IMA Status:
Approved IMA 1991
Locality:
Foote Quarry, Kings Mountain, Cleveland County, North Carolina, USA. Link to MinDat.org Location Data.
Name Origin:
Named as the manganese analog of gordonite.
Name Pronunciation:
Mangangordonite + Pronunciation 
Synonym:
ICSD 63248
IMA1989-023
PDF 45-1409
Mangangordonite Image
Images:
Mangangordonite Crystallography
Axial Ratios:
a:b:c =0.5072:1:0.6793
Cell Dimensions:
a = 5.257, b = 10.363, c = 7.04, Z = 1; alpha = 105.44°, beta = 113.07°, gamma = 78.69° V = 333.52 Den(Calc)= 2.39
Crystal System:
Triclinic - PinacoidalH-M Symbol ( 1) Space Group: P1
X Ray Diffraction:
By Intensity(I/Io): 4.77(1), 6.39(0.8), 3.18(0.7),
Crystal Structure:
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| | Leavens P B , Rheingold A L , Neues Jahrbuch fur Mineralogie, Monatshefte , 1988 (1988) p.265-270, Crystal structures of gordonite, MgAl2(PO4)2(OH)2(H2O)6*2H2O, and its Mn analog | | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
Physical Properties of Mangangordonite
Cleavage:
{010} Perfect
Color:
Colorless, White, Light yellow.
Density:
2.36
Diaphaneity:
Transparent
Habit:
Tabular - Form dimensions are thin in one direction.
Hardness:
3 - Calcite
Luster:
Vitreous (Glassy)
Streak:
white
Optical Properties of Mangangordonite
Gladstone-Dale:
CI meas= 0.024 (Excellent) - where the CI = (1-KPDmeas/KC)
CI calc= 0.024 (Excellent) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2384,KPDmeas= 0.2384,KC= 0.2442
Ncalc = 1.58
Optical Data:
Biaxial (+), a=1.556, b=1.561, g=1.571, bire=0.0150, 2V(Calc)=72, 2V(Meas)=70-71.
Calculated Properties of Mangangordonite
Electron Density:
Bulk Density (Electron Density)=2.41 gm/cc
note: Specific Gravity of Mangangordonite =2.36 gm/cc.
Fermion Index:
Fermion Index = 0.0012337987
Boson Index = 0.9987662013
Photoelectric:
PEMangangordonite = 3.99 barns/electron
U=PEMangangordonite x rElectron Density= 9.59 barns/cc.
Radioactivity:
GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Mangangordonite is Not Radioactive
Mangangordonite Classification
Dana Class:
42.11.14.05 (42)Hydrated Phosphates, etc., Containing Hydroxyl or Halogen
(42.11)where (AB)4 (XO4)3 Zq � x(H2O)
(42.11.14)Vauxite Group
42.11.14.01 Vauxite FeAl2(PO4)2(OH)2•6(H2O) P1 1
42.11.14.02 Paravauxite FeAl2(PO4)2(OH)2•8(H2O) P1 1
42.11.14.03 Sigloite FeAl2(PO4)2(OH)3•5(H2O) P1 1
42.11.14.04 Gordonite MgAl2(PO4)2(OH)2•8(H2O) P1 1
42.11.14.05 Mangangordonite (Mn,Fe,Mg)Al2(PO4)2(OH)2•8(H2O) P1 1
42.11.14.06 Kastningite! (Mn,Fe,Mg)Al2(PO4)2(OH)2•8(H2O) P1 1
42.11.14.07 Maghrebite! MgAl2(AsO4)2(OH)2•8H2O P1 1
Strunz Class:
08.DC.30 08 - PHOSPHATES, ARSENATES, VANADATES
08.D - Phosphates, etc
08.DC -With only medium-sized cations, (OH, etc.):RO4 = 1:1 and < 2:1
08.DC.30 Gordonite MgAl2(PO4)2(OH)2•8(H2O) P1 1
08.DC.30 Ferrolaueite! FeFe2(PO4)2(OH)2•8(H2O) Tri
08.DC.30 Mangangordonite (Mn,Fe,Mg)Al2(PO4)2(OH)2•8(H2O) P1 1
08.DC.30 Laueite MnFe2(PO4)2(OH)2•8(H2O) P1 1
08.DC.30 Sigloite FeAl2(PO4)2(OH)3•5(H2O) P1 1
08.DC.30 Pseudolaueite MnFe2(PO4)2(OH)2•7-8(H2O) P 21/a 2/m
08.DC.30 Paravauxite FeAl2(PO4)2(OH)2•8(H2O) P1 1
08.DC.30 Stewartite MnFe2(PO4)2(OH)2•8(H2O) P1 1
08.DC.30 Ushkovite MgFe2(PO4)2(OH)2•8(H2O) P1 1
08.DC.30 Kastningite! (Mn,Fe,Mg)Al2(PO4)2(OH)2•8(H2O) P1 1
08.DC.30 Maghrebite! MgAl2(AsO4)2(OH)2•8H2O P1 1
Other Mangangordonite Information
References:
NAME( AntBidBlaNic4) PHYS. PROP.(Am.Min.,Vol.76,p2022,1991) OPTIC PROP.(Am.Min.,Vol.76,p2022,1991)
See Also:
Links to other databases for Mangangordonite :
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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Print or Cut-and-Paste your Mangangordonite Specimen Label here :
Mangangordonite
(Mn++,Fe++,Mg)Al2(PO4)2(OH)2•8(H2O)
Dana No: 42.11.14.05 Strunz No: 08.DC.30
Locality:
Notes: