Nanlingite Mineral Data

Nanlingite Mineral Data +

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General Nanlingite Information

Chemical Formula:

CaMg4(AsO3)2F4

Composition:

Molecular Weight = 459.13 gm

Calcium 8.73 % Ca 12.21 % CaO

Magnesium 21.17 % Mg 35.11 % MgO

Arsenic 32.64 % As 43.09 % As₂O₃

Oxygen 20.91 % O

Fluorine 16.55 % F 16.55 % F

- % F -6.97 % -O=F₂

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Empirical Formula:

CaMg₄(AsO₃)₂F₄

Environment:

In a contact zone between granite and dolomite.

IMA Status:

Approved IMA 1976

Locality:

Nanling area, southern China. Link to MinDat.org Location Data.

Name Origin:

Named after the locality.

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Nanlingite Crystallography

Axial Ratios:

a:c = 1:2.51562

Cell Dimensions:

a = 10.24, c = 25.76, Z = 12; V = 2,339.25 Den(Calc)= 3.91

Crystal System:

TrigonalSpace Group: R 3m, R 3m

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

By Intensity(I/I_o): 2.78(1), 8.35(0.9), 1.73(0.8),

Physical Properties of Nanlingite

Color:

Brown red, Dark brown.

Density:

3.927

Habit:

Tabular - Form dimensions are thin in one direction.

Hardness:

2.5 - Finger Nail

Luster:

Vitreous (Glassy)

Streak:

pale yellow

Optical Properties of Nanlingite

Gladstone-Dale:

CI meas= 0.006 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= 0.002 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2046,KPDmeas= 0.2037,KC= 0.2049

Optical Data:

Uniaxial (-), e=1.78, w=1.82, bire=0.0400.

Calculated Properties of Nanlingite

Electron Density:

r_electron=3.71 gm/cc
note: r_Nanlingite=3.91 gm/cc.

Fermion Index

Fermion Index = 0.02139
Boson Index = 0.97861

Photoelectric:

PE_Nanlingite= 23.91 barns/electron
U=PE_Nanlingite x r_electron= 88.76 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Nanlingite is Not Radioactive

Nanlingite Classification

Dana Class:

46.1.2.1 (46)Basic or Halogen-Containing Antimonites, Arsenites and Phosphites

(46.1)where (A B)m (XO3)p Zq

(46.1.2)Dana Group

46.1.2.1 Nanlingite CaMg4(AsO3)2F4 R 3m, R 3m Trig

Strunz Class:

IV/J.02-10 IV - Oxides

IV/J - Arsenides with [AsO3]3- groups

IV/J.02 - Nanlingite series

IV/J.02-10 Nanlingite CaMg4(AsO3)2F4 R 3m, R 3m Trig

Other Nanlingite Information

References:

NAME( Dana8) PHYS. PROP.(Dana8) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)

See Also:

Links to other databases for Nanlingite :
1 -Am. Min. Crystal Structure Database 2 -Athena 3 - EUROmin Project 4 -Google Images 5 -Google Scholar 6 -Handbook of Mineralogy (UofA) 7 -MinDAT 8 -MinMax(Deutsch) 9 -MinMax(English) 10 -Mineralienatlas (Deutsch) 11 -QUT Mineral Atlas 12 -École des Mines de Paris

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Print or Cut-and-Paste your Nanlingite Specimen Label here :

Nanlingite

CaMg4(AsO3)2F4
Dana No: 46.1.2.1 Strunz No: IV/J.02-10
Locality:

Notes: