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Paganoite Mineral Data
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General Paganoite Information
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 Chemical Formula: |
(Ni,Co)BiAsO5 |
| Composition: |
Molecular Weight = 420.26 gm |
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Cobalt 1.54 % Co 1.96 % CoO |
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Nickel 12.01 % Ni 15.28 % NiO |
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Bismuth 49.23 % Bi 54.88 % Bi2O3 |
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Arsenic 18.18 % As 27.89 % As2O5 |
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Oxygen 19.03 % O |
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______ ______ |
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100.00 % 100.02 % = TOTAL OXIDE |
| Empirical Formula: |
Ni0.86Co0.11Bi0.99As1.02O5 |
| 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 |
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Paganoite Image |
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Images:
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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 |
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Paganoite Crystallography
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| 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 - Pinacoidal H-M Symbol ( 1) Space Group: P1 |
| X Ray Diffraction: |
By Intensity(I/Io): 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), |
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Physical Properties of Paganoite
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| Cleavage: |
None |
| Color: |
Orange, Golden brown. |
| Diaphaneity: |
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 |
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Optical Properties of Paganoite
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| Gladstone-Dale: |
CI calc= -0.007 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1607,KC= 0.1596
Ncalc = 2.07 |
| 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 |
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∑ R1(λ) |
∑ R2(λ) |
| 400 nm |
13.80 |
14.00 |
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| 420 nm |
13.35 |
13.60 |
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| 440 nm |
13.05 |
13.30 |
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| 460 nm |
12.90 |
13.20 |
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| 470 nm |
12.85 |
13.10 |
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| 480 nm |
12.75 |
13.00 |
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| 500 nm |
12.60 |
12.85 |
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| 520 nm |
12.50 |
12.70 |
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| 540 nm |
12.40 |
12.65 |
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| 546 nm |
12.35 |
12.60 |
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| 560 nm |
12.25 |
12.55 |
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| 580 nm |
12.20 |
12.50 |
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| 589 nm |
12.15 |
12.50 |
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| 600 nm |
12.10 |
12.45 |
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| 620 nm |
12.15 |
12.40 |
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| 640 nm |
12.10 |
12.40 |
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| 650 nm |
12.00 |
12.35 |
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| 660 nm |
12.00 |
12.30 |
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| 680 nm |
11.95 |
12.30 |
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| 700 nm |
11.95 |
12.35 |
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Standardized Intensity (100%) Reflection Spectra of Paganoite in Oil
| λ |
R1 |
R2 |
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∑ R1(λ) |
∑ R2(λ) |
| 400 nm |
3.27 |
3.38 |
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| 420 nm |
3.09 |
3.24 |
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| 440 nm |
2.94 |
3.12 |
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| 460 nm |
2.88 |
3.02 |
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| 470 nm |
2.84 |
2.99 |
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| 480 nm |
2.80 |
2.95 |
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| 500 nm |
2.74 |
2.91 |
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| 520 nm |
2.69 |
2.88 |
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| 540 nm |
2.64 |
2.82 |
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| 546 nm |
2.63 |
2.80 |
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| 560 nm |
2.61 |
2.79 |
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| 580 nm |
2.58 |
2.78 |
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| 589 nm |
2.57 |
2.77 |
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| 600 nm |
2.56 |
2.76 |
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| 620 nm |
2.57 |
2.77 |
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| 640 nm |
2.54 |
2.74 |
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| 650 nm |
2.52 |
2.73 |
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| 660 nm |
2.50 |
2.72 |
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| 680 nm |
2.48 |
2.72 |
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| 700 nm |
2.48 |
2.73 |
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Calculated Relative Intensity Colors of Paganoite in Air
Relative
Intensity |
0% |
80% |
100% |
160% |
240% |
320% |
400% |
480% |
560% |
640% |
720% |
| R1 |
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| R2 |
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Calculated Relative Intensity Colors of Paganoite in Oil
Relative
Intensity |
0% |
100% |
200% |
300% |
400% |
500% |
600% |
700% |
800% |
900% |
1000% |
| R1 |
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| R2 |
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Calculated Properties of Paganoite
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| Electron Density: |
Bulk Density (Electron Density)=5.85 gm/cc
note: Specific Gravity of Paganoite =6.72 gm/cc.
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| Fermion Index: |
Fermion Index = 0.0014489829
Boson Index = 0.9985510171 |
| Photoelectric: |
PEPaganoite = 929.75 barns/electron
U=PEPaganoite x rElectron Density=5,437.64 barns/cc.
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Paganoite is Not Radioactive |
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Paganoite Classification
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| Dana Class: |
38.05.13.01 (38)Anhydrous Phosphates, etc |
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(38.05)with miscellaneous formulae |
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(38.05.13)Dana Group |
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38.05.13.01 Paganoite! (Ni,Co)BiAsO5 P1 1 |
| Strunz Class: |
08.BH.50 08 - PHOSPHATES, ARSENATES, VANADATES |
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08.B - Phosphates, etc. with Additional Anions, without H2O |
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08.BH -With medium-sized and large cations, (OH,etc.):RO4 = 1:1 |
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08.BH.50 Paganoite! (Ni,Co)BiAsO5 P1 1 |
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Other Paganoite Information
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| 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 - GeoScienceWorld
4 - Google Images
5 - Google Scholar
6 - MinDAT
7 - Mineralienatlas (Deutsch)
8 - Online Mineral Museum
9 - QUT Mineral Atlas
10 - Ruff.Info
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Paganoite
(Ni,Co)BiAsO5
Dana No: 38.05.13.01 Strunz No: 08.BH.50
Locality:
Notes:
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