Arsenoflorencite-(Nd) Mineral Data

Arsenoflorencite-(Nd) Mineral Data +

[Newest Minerals] [Rare Minerals] [Past Sale Items] [About Us] [A-Rocks Auctions]
T G Fine Minerals sells Australian Minerals from all the classic and current localities
We are one the most comprehensive sellers of these (Aussie) minerals in the world
Broken Hill specimens are our specialty along with fine worldwide minerals, Australian opals, fossils & gems

General Arsenoflorencite-(Nd) Information

Chemical Formula:

(Nd,La,Ce,Ba)(Al,Fe+++)3(AsO4,PO4)2(OH)6

Composition:

Molecular Weight = 610.95 gm

Barium 2.25 % Ba 2.51 % BaO

Lanthanum 4.55 % La 5.33 % La₂O₃

Cerium 4.59 % Ce 5.37 % Ce₂O₃

Aluminum 9.94 % Al 18.78 % Al₂O₃

Iron 6.86 % Fe 9.80 % Fe₂O₃

Arsenic 20.85 % As 31.98 % As₂O₅

Phosphorus 1.52 % P 3.49 % P₂O₅

Hydrogen 0.99 % H 8.85 % H₂O

Neodymium 11.80 % Nd 13.77 % Nd₂O₃

Oxygen 36.66 % O

______ ______

100.00 % 99.87 % = TOTAL OXIDE

Empirical Formula:

Nd_0.5La_0.2Ce_0.2Ba_0.1Al_2.25Fe³⁺_0.75(AsO₄)_1.7(PO₄)_0.3(OH)₆

IMA Status:

Not Approved IMA

Locality:

Link to MinDat.org Location Data.

Name Origin:

Named as the arsenic analog of florencite and the dominant rare earth element, Neodymium.

Search for Arsenoflorencite-(Nd) Images

Images:

Image not yet available on Webmineral.com

Try searching images.google.com or Mindat Picture Gallary for mineral pictures. Caution: The images retrieved may not be appropriate.

Arsenoflorencite-(Nd) Crystallography

Axial Ratios:

a:c = 1:2.35419

Cell Dimensions:

a = 7.03, c = 16.55, Z = 3; V = 708.34 Den(Calc)= 4.30

Crystal System:

Trigonal - Ditrigonal PyramidalH-M Symbol (3m) Space Group: R 3m

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

By Intensity(I/I_o): 2.95(1), 3.51(0.6), 5.65(0.55),

Physical Properties of Arsenoflorencite-(Nd)

Color:

White.

Density:

4.05 - 4.15, Average = 4.09

Diaphaniety:

Transparent

Hardness:

3.5 - Copper Penny

Luster:

Vitreous (Glassy)

Streak:

white

Optical Properties of Arsenoflorencite-(Nd)

Gladstone-Dale:

CI meas= 0.072 (Fair) - where the CI = (1-KPDmeas/KC)
CI calc= 0.115 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1733,KPDmeas= 0.1817,KC= 0.1957

Optical Data:

Uniaxial (+), w=1.74, e=1.75, bire=0.0100.

Calculated Properties of Arsenoflorencite-(Nd)

Electron Density:

r_electron=3.84 gm/cc
note: r_{Arsenoflorencite-(Nd)}=4.10 gm/cc.

Fermion Index

Fermion Index = 0.02985
Boson Index = 0.97015

Photoelectric:

PE_{Arsenoflorencite-(Nd)}= 136.19 barns/electron
U=PE_{Arsenoflorencite-(Nd)} x r_electron= 522.69 barns/cc.

Radioactivity:

GRapi = 20,906.97 (Gamma Ray American Petroleum Institute Units)

Arsenoflorencite-(Nd) is Radioactive as defined in 49 CFR 173.403. Greater than 70 Bq / gram.

**Estimated Radioactivity from Arsenoflorencite-(Nd)** - weak
Specimen Size Weight/Volume (Sphere) *	Calculated Activity Bequerols (Bq)	Calculated Activity Curies (Ci)	Estimated Activity GR(api)	Estimated Exposure (mRem**)/hr If Held in Hand For One Hour
1000 gm / 7.75 cm	469,024	1.27E-05	20,906.97	6.87
100 gm / 3.60 cm	46,902	1.27E-06	2,090.70	0.69
10 gm / 1.67 cm	4,690	1.27E-07	209.07	0.07
1 gm / 7.75 mm	469	1.27E-08	20.91	0.01
0.1 gm / 3.60 mm	47	1.27E-09	2.09	0.00
0.01 gm / 1.67 mm	5	1.27E-10	0.21	0.00
0.001 gm / 0.78 mm	0	1.27E-11	0.02	0.00

Weight of pure Arsenoflorencite-(Nd) in grams (gm) and Calculated Diameter of a Sphere with a Density of 4.10 gm/cc.*
Goverment Estimate of Average Annual Exposure ( 360 mRem) **
Note: 10 microsieverts/hr = 1 mRem/hr **
Max Permissable Adult Dose 50,000 mRem/yr (hands), 15,000 mRem/yr (eyes)
Lethal Dose LD(50) Exposure 400,000 to 500,000 mRem
Estimated Thorium Activity ( 1.05 % Th) From Sum REE Elements (20.94 % REE)

Arsenoflorencite-(Nd) Classification

Dana Class:

41.5.11.2 (41)Anhydrous Phosphates, etc. Containing Hydroxyl or Halogen

(41.5)where (A B)2 (XO4) Zq

(41.5.11)Dana Group

41.5.11.1 Arsenoflorencite-(Ce) (Ce,La)Al3(AsO4)2(OH)6 R 3m 3 2/m

41.5.11.2 Arsenoflorencite-(Nd) * (Nd,La,Ce,Ba)(Al,Fe)3(AsO4,PO4)2(OH)6 R 3m 3m

41.5.11.3 Arsenoflorencite-(La)* (La,Sr)Al3(AsO4,SO4,PO4)2(OH)6 R 3m 3m

41.5.11.4 Graulichite-(Ce)! CeFe3(AsO4)2(OH)6 R 3m 3 2/m

Strunz Class:

VII/B.36-135 VII - Phosphates, Arsenates and Vanadates

VII/B - Waterfree phosphates with unfamiliar anions F, Cl, O, OH. cations of medium and big size: Mg, Cu, Zn, and Ca, Na, K, Ba, Pb

VII/B.36 - Crandallite group

VII/B.36-10 Crandallite CaAl3(PO4)2(OH)5·(H2O) R 3m 3 2/m

VII/B.36-20 Arsenocrandallite (Ca,Sr)Al3[(As,P)O4]2(OH)5·(H2O) R 3m 3m

VII/B.36-30 Goyazite SrAl3(PO4)2(OH)5·(H2O) R 3m 3 2/m

VII/B.36-40 Arsenogoyazite (Sr,Ca,Ba)Al3(AsO4,PO4)2(OH,F)5·(H2O) R 3m 3 2/m

VII/B.36-50 Gorceixite BaAl3(PO4)(PO3OH)(OH)6 Cm m

VII/B.36-60 Arsenogorceixite! BaAl3AsO3(OH)(AsO4,PO4)(OH,F)6 R 3m 3 2/m

VII/B.36-70 Plumbogummite PbAl3(PO4)2(OH)5·(H2O) R 3m 3 2/m

VII/B.36-80 Philipsbornite PbAl3(AsO4)2(OH)5·(H2O) R 3m-,R 3m Trig

VII/B.36-90 Waylandite BiAl3(PO4)2(OH)6 R 3m 3 2/m

VII/B.36-100 Eylettersite (Th,Pb)1-xAl3(PO4,SiO4)2(OH)6(?) R 3m 3 2/m

VII/B.36-110 Florencite-(Ce) CeAl3(PO4)2(OH)6 R 3m 3 2/m

VII/B.36-120 Arsenoflorencite-(Ce) (Ce,La)Al3(AsO4)2(OH)6 R 3m 3 2/m

VII/B.36-125 Arsenoflorencite-(La)* (La,Sr)Al3(AsO4,SO4,PO4)2(OH)6 R 3m 3m

VII/B.36-130 Florencite-(La) (La,Ce)Al3(PO4)2(OH)6 R 3m 3 2/m

VII/B.36-135 Arsenoflorencite-(Nd) (Nd,La,Ce,Ba)(Al,Fe)3(AsO4,PO4)2(OH)6 R 3m 3m

VII/B.36-140 Florencite-(Nd) (Nd,Ce)Al3(PO4)2(OH)6 R 3m 3 2/m

VII/B.36-150 Benauite! HSrFe3(PO4)2(OH)6 R 3m 3 2/m

VII/B.36-150* Lusungite? (Sr,Pb)Fe3(PO4)2(OH)5·(H2O) R 3m 3m

VII/B.36-152 Graulichite-(Ce)! CeFe3(AsO4)2(OH)6 R 3m 3 2/m

VII/B.36-155 Springcreekite! BaV3(PO4)2(OH,H2O)6 R 3m 3 2/m

VII/B.36-160 Dussertite BaFe3(AsO4)2(OH)5 R 3m 3m

VII/B.36-170 Zairite Bi(Fe,Al)3(PO4)2(OH)6 R 3m 3 2/m

Other Arsenoflorencite-(Nd) Information

References:

PHYS. PROP.(37th List of New Min.,Min. Mag.,1996) OPTIC PROP.(37th List of New Min.,Min. Mag.,19)

See Also:

Links to other databases for Arsenoflorencite-(Nd) :
1 -Am. Min. Crystal Structure Database 2 -Athena 3 -Google Images 4 -Google Scholar 5 -MinDAT 6 -MinMax(Deutsch) 7 -MinMax(English) 8 -Mineralienatlas (Deutsch) 9 -QUT Mineral Atlas

Search for Arsenoflorencite-(Nd) using:

[ALTAVISTA] [AOL] [About.com] [All-The-Web] [HotBot] [Ixquick] [LookSmart] [MAMMA] [MSN.COM] [Netscape] [Teoma] [Wikipedia] [YAHOO]

Visit our Advertisers for Arsenoflorencite-(Nd) :
AA Mineral Specimens
B and L Minerals
Crystal Vaults
Dan Weinrich Fine Minerals
Dan Weinrich Auctions
e-Rocks Auctions
Excalibur Minerals
Exceptional Minerals
Fabre Minerals
Greenside Minerals
John Betts Fine Minerals
Masons Minerals
Mineral News
Mineral of the Month Club
MineralsWeb Fine Minerals
Rockshop.cz Kalat Fine Minerals
T G Fine Minerals
Wrights Rock Shop

Translate Arsenoflorencite-(Nd) Mineral Data :

Ask about Arsenoflorencite-(Nd) here :
Ask-A-Mineralogist from the Mineralogical Society of America
Mindat.org's Discussion Groups
Original Rockhounds Discussion Group
Rockhounds Discussion Group on Yahoo Groups
Mineral Discussion Forum from Fabre Minerals - also available in Español

Print or Cut-and-Paste your Arsenoflorencite-(Nd) Specimen Label here :

Arsenoflorencite-(Nd)

(Nd,La,Ce,Ba)(Al,Fe+++)3(AsO4,PO4)2(OH)6
Dana No: 41.5.11.2 Strunz No: VII/B.36-135
Locality:

Notes: