Loseyite Mineral Data
General Loseyite Information
Chemical Formula:
(Mn,Zn)7(CO3)2(OH)10
Composition:
Molecular Weight = 692.95 gm
Manganese 41.62 % Mn 53.74 % MnO
Zinc 16.51 % Zn 20.55 % ZnO
Hydrogen 1.45 % H 13.00 % H2 O
Carbon 3.47 % C 12.70 % CO2
Oxygen 36.94 % O
______ ______
100.00 % 100.00 % = TOTAL OXIDE
Empirical Formula:
7(Mn2+ 0.75 )7(Zn0.25 )(CO3 )2 (OH)10
Environment:
Secondary mineral in zinc and manganese deposits.
IMA Status:
Valid Species (Pre-IMA) 1929
Locality:
Franklin, Sussex Co., New Jersey, USA. Link to MinDat.org Location Data.
Name Origin:
Named for Samuel R. Losey (1830-1904), mineral collector of Franklin, New Jersey, USA.
Name Pronunciation:
Loseyite
Synonym:
ICSD 15553
PDF 17-206
Loseyite Crystallography
Axial Ratios:
a:b:c =2.9455:1:2.7132
Cell Dimensions:
a = 16.23, b = 5.51, c = 14.95, Z = 4; beta = 95.4° V = 1,331.00 Den(Calc)= 3.46
Crystal System:
Monoclinic - Prismatic H-M Symbol (2/m) Space Group: A2/a
X Ray Diffraction:
By Intensity(I/Io ): 2.63(1), 3.68(1), 3.8(0.9),
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Physical Properties of Loseyite
Cleavage:
None
Color:
Bluish white, Brownish, Brownish white.
Density:
3.27
Diaphaneity:
Transparent to translucent
Hardness:
3 - Calcite
Luminescence:
Non-fluorescent.
Luster:
Vitreous (Glassy)
Magnetism:
Nonmagnetic
Streak:
white
Optical Properties of Loseyite
Gladstone-Dale:
CI meas = 0.045 (Good) - where the CI = (1-KPDmeas /KC ) CI calc = 0.098 (Poor) - where the CI = (1-KPDcalc /KC )
KPDcalc = 0.1889,KPDmeas = 0.1999,KC = 0.2094 Ncalc = 1.68 - 1.72
Optical Data:
Biaxial (+), a=1.637, b=1.648, g=1.676, bire=0.0390, 2V(Calc)=66, 2V(Meas)=64. Dispersion relatively weak.
Calculated Properties of Loseyite
Electron Density:
Bulk Density (Electron Density)=3.15 gm/cc note: Specific Gravity of Loseyite =3.27 gm/cc.
Fermion Index:
Fermion Index = 0.0073315083 Boson Index = 0.9926684917
Photoelectric:
PELoseyite = 18.95 barns/electronU=PELoseyite x r Electron Density= 59.68 barns/cc.
Radioactivity:
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Loseyite is Not Radioactive
Loseyite Classification
Dana Class:
16a.05.03.01 (16a) Carbonates - Hydroxyl or Halogen
(16a.05) with miscellaneous formulae
(16a.05.03) Dana Group
16a.05.03.01 Loseyite (Mn,Zn)7(CO3)2(OH)10 A2/a 2/m
16a.05.03.02 Sclarite (Zn,Mg,Mn)4Zn3(CO3)2(OH)10 A2/a 2/m
Strunz Class:
05.BA.30 05 - CARBONATES (NITRATES)
05.B - Carbonates with additional anions, without H2O
05.BA -With Cu, Co, Ni, Zn, Mg, Mn
05.BA.30 Loseyite (Mn,Zn)7(CO3)2(OH)10 A2/a 2/m
05.BA.30 Sclarite (Zn,Mg,Mn)4Zn3(CO3)2(OH)10 A2/a 2/m
Other Loseyite Information
References:
NAME( Ford32) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)
See Also:
Links to other databases for Loseyite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - Ecole des Mines de Paris
5 - Franklin Minerals(Dunn)
6 - Franklin Minerals(Palache)
7 - GeoScienceWorld
8 - Google Images
9 - Google Scholar
10 - Handbook of Mineralogy (MinSocAm)
11 - Handbook of Mineralogy (UofA)
12 - MinDAT
13 - Mineralienatlas (Deutsch)
14 - Online Mineral Museum
15 - QUT Mineral Atlas
16 - Ruff.Info
17 - WWW-MINCRYST
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Loseyite
(Mn,Zn)7(CO3)2(OH)10
Dana No: 16a.05.03.01 Strunz No: 05.BA.30
Locality:
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