Paganoite Mineral Data

Paganoite Mineral Data

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General Paganoite Information

Chemical Formula:

(Ni,Co)BiAsO5

Composition:

Molecular Weight = 420.26 gm

Cobalt 1.54 % Co 1.96 % CoO

Nickel 12.01 % Ni 15.28 % NiO

Bismuth 49.23 % Bi 54.88 % Bi₂O₃

Arsenic 18.18 % As 27.89 % As₂O₅

Oxygen 19.03 % O

______ ______

100.00 % 100.02 % = TOTAL OXIDE

Empirical Formula:

Ni_0.86Co_0.11Bi_0.99As_1.02O₅

Environment:

Secondary arsenate in a quartz matrix veined by nickeline and bismuth.

IMA Status:

Approved IMA 2001 (Dana # Added)

Locality:

Johanngeorgenstadt, Saxony, Germany. Link to MinDat.org Location Data.

Name Origin:

Named for Renato (1938-) and Adriana (1939-) Pagano, amateur mineralogists from Cinisello, Milan, Italy.

Synonym:

IMA1999-043

Paganoite Image

Images:

Paganoite

Comments: Scanning electron microscope photomicrograph of blocky subhedral to euhedral crystals of paganoite and more fine-grained mottled material that is aerugite. (Eur. J. Mineral, 13:169).
Location: Johanngeorgenstadt, Saxony, Germany, mined in the mid-1800?s, nothing was preserved of its previous history until it was located in 1981 by the American mineral dealer David New in the back of a drawer in an old mineral shop in Germany.. Scale: See Image.
© Eur. J. Mineral

Paganoite Crystallography

Axial Ratios:

a:b:c =0.9829:1:0.7664

Cell Dimensions:

a = 6.7127, b = 6.8293, c = 5.2345, Z = 2; alpha = 107.625°, beta = 95.409°, gamma = 111.158° V = 212.33 Den(Calc)= 6.57

Crystal System:

Triclinic - PinacoidalH-M Symbol ( 1) Space Group: P1

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

By Intensity(I/I_o): 3.233(1)(011), 5.943(1)(010), 3.067(0.6)(021),2.116(0.5)(112,112,031,3.047(0.5)(200), 1.659(0.4), 2.095(0.4),

Crystal Structure:

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Roberts A C , Burns P C , Gault R A , Criddle A J , Feinglos M N , Stirling J A R , European Journal of Mineralogy , 13 (2001) p.167-175, Paganoite, NiBiAsO5, a new mineral from Johanngeorgenstadt,, Saxony, Germany: description and crystal structure, Locality: Johanngeorgenstadt, Saxony, Germany

Physical Properties of Paganoite

Cleavage:

None

Color:

Orange, Golden brown.

Diaphaniety:

Transparent to Translucent

Fracture:

Brittle - Uneven - Very brittle fracture producing uneven fragments.

Habit:

Aggregates - Made of numerous individual crystals or clusters.

Habit:

Euhedral Crystals - Occurs as well-formed crystals showing good external form.

Hardness:

1-2 - Between Talc and Gypsum

Luster:

Adamantine

Streak:

pale orange brown

Optical Properties of Paganoite

Gladstone-Dale:

CI calc= -0.03 (Excellent) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1644,KC= 0.1596

Optical Data:

Biaxial (?), a=2.07, g=2.09, bire=0.0200

RL Bireflectance:

None.

RL Color:

Gray.

RL Pleochroism:

None.

Reflectivity

**Standardized Intensity (100%) Reflection Spectra of Paganoite in Air**
λ	R₁	R₂	∑ R₁(λ)	∑ R₂(λ)
400 nm	13.80	14.00
420 nm	13.35	13.60
440 nm	13.05	13.30
460 nm	12.90	13.20
470 nm	12.85	13.10
480 nm	12.75	13.00
500 nm	12.60	12.85
520 nm	12.50	12.70
540 nm	12.40	12.65
546 nm	12.35	12.60
560 nm	12.25	12.55
580 nm	12.20	12.50
589 nm	12.15	12.50
600 nm	12.10	12.45
620 nm	12.15	12.40
640 nm	12.10	12.40
650 nm	12.00	12.35
660 nm	12.00	12.30
680 nm	11.95	12.30
700 nm	11.95	12.35

**Standardized Intensity (100%) Reflection Spectra of Paganoite in Oil**
λ	R₁	R₂	∑ R₁(λ)	∑ R₂(λ)
400 nm	3.27	3.38
420 nm	3.09	3.24
440 nm	2.94	3.12
460 nm	2.88	3.02
470 nm	2.84	2.99
480 nm	2.80	2.95
500 nm	2.74	2.91
520 nm	2.69	2.88
540 nm	2.64	2.82
546 nm	2.63	2.80
560 nm	2.61	2.79
580 nm	2.58	2.78
589 nm	2.57	2.77
600 nm	2.56	2.76
620 nm	2.57	2.77
640 nm	2.54	2.74
650 nm	2.52	2.73
660 nm	2.50	2.72
680 nm	2.48	2.72
700 nm	2.48	2.73

**Calculated Relative Intensity Colors of Paganoite in Air**
Relative Intensity	0%	80%	100%	160%	240%	320%	400%	480%	560%	640%	720%
R₁
R₂

**Calculated Relative Intensity Colors of Paganoite in Oil**
Relative Intensity	0%	100%	200%	300%	400%	500%	600%	700%	800%	900%	1000%
R₁
R₂

Calculated Properties of Paganoite

Electron Density:

r_electron=5.72 gm/cc
note: r_Paganoite=6.57 gm/cc.

Fermion Index

Fermion Index = 0.00144
Boson Index = 0.99856

Photoelectric:

PE_Paganoite= 929.75 barns/electron
U=PE_Paganoite x r_electron=5,316.26 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Paganoite is Not Radioactive

Paganoite Classification

Dana Class:

38.5.13.1 (38)Anhydrous Phosphates, etc

(38.5)with miscellaneous formulae

(38.5.13)Dana Group

38.5.13.1 Paganoite ! (Ni,Co)BiAsO5 P1 1

Strunz Class:

VII/B.28-80 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.28 - Carminite series

VII/B.28-10 Bertossaite Li2CaAl4(PO4)4(OH)4 Imaa,Iaa2 Ortho

VII/B.28-20 Palermoite (Sr,Ca)(Li,Na)2Al4(PO4)4(OH)4 I mmm 2/m 2/m 2/m

VII/B.28-30 Attakolite (Ca,Sr)Mn(Al,Fe)4[(Si,P)O4]H(PO4)3(OH)4 C 2/m 2/m

VII/B.28-35 Sewardite! CaFe2(AsO4)2(OH)2 C ccm 2/m 2/m 2/m

VII/B.28-40 Carminite PbFe2(AsO4)2(OH)2 C ccm 2/m 2/m 2/m

VII/B.28-60 Leningradite PbCu3(VO4)Cl2 I bam 2/m 2/m 2/m

VII/B.28-70 Namibite CuBi2(VO4)O2 C 2/m,Cm,C 2 Mono

VII/B.28-80 Paganoite (Ni,Co)BiAsO5 P1 1

Other Paganoite Information

References:

NAME( AmMin, v 86, p 939) PHYS. PROP.(AmMin, v 86, p 939) OPTIC PROP.(EurJMin, 13:170)

See Also:

Links to other databases for Paganoite :
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

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

Paganoite

(Ni,Co)BiAsO5
Dana No: 38.5.13.1 Strunz No: VII/B.28-80
Locality:

Notes: