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 % H₂O

Carbon 3.47 % C 12.70 % CO₂

Oxygen 36.94 % O

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Empirical Formula:

7(Mn²⁺_0.75)7(Zn_0.25)(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

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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 - PrismaticH-M Symbol (2/m) Space Group: A2/a

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

By Intensity(I/I_o): 2.63(1), 3.68(1), 3.8(0.9),

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Forms: ( 1 3 6) ( 1 3 0) ( 1 0 1) ( 0 0 1)

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Crystal Structure:

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Hill R J , Acta Crystallographica, Section B , 37 (1981) p.1323-1328, The structure of loseyite, Locality: Franklin, New Jersey, Note: AnisoU s from ICSD

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:

PE_Loseyite= 18.95 barns/electron
U=PE_Loseyite x rElectron 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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Print or Cut-and-Paste your Loseyite Specimen Label here :

Loseyite

(Mn,Zn)7(CO3)2(OH)10
Dana No: 16a.05.03.01 Strunz No: 05.BA.30
Locality:

Notes: