Classification of Nickelschneebergite |
| IMA status: | Approved 1999 |
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| Strunz 8th edition ID: | 7/C.31-04
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| Nickel-Strunz 10th (pending) edition ID: | 8.CG.15
8 : PHOSPHATES, ARSENATES, VANADATES C : Phosphates without additional anions, with H2O G : With large and medium-sized cations, RO4:H2O = 1:1 |
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| mindat.org URL: | http://www.mindat.org/min-11379.html Please feel free to link to this page. |
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Type Occurrence of Nickelschneebergite |
| Type Locality: | Roter Berg District, Schneeberg District, Erzgebirge, Saxony, Germany |
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| General Appearance of Type Material: | aggregates of tabular to lath-like, or acicular micro-crystals to 0.5 mm in length |
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| Place of Conservation of Type Material: | Museum of Mineralogy and Geology, Dresden, Germany |
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| Year of Discovery: | 2002 |
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| Geological Setting of type material: | in quartz casts of decomposed cobalt and nickel arsenides |
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| Associated Minerals at type locality: | |
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Physical Properties of Nickelschneebergite |
| Lustre: | Adamantine |
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| Diaphaneity (Transparency): | Transparent |
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| Colour: | light brown to greenish brown |
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| Streak: | white to pale brown |
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| Hardness (Mohs): | 4 - 4½ |
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| Hardness Data: | Measured |
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| Tenacity: | Brittle |
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| Cleavage: | None Observed |
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| Fracture: | Conchoidal |
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| Density (calculated): | 5.23 g/cm3 |
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Crystallography of Nickelschneebergite |
| Crystal System: | Monoclinic |
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| Class (H-M): | 2/m - Prismatic |
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| Space Group: | B2/m {B1 1 2/m} {C2/m} {C1 2/m 1} |
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| Cell Parameters: | a = 8.995Å, b = 6.207Å, c = 7.462Å β = 115° |
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| Ratio: | a:b:c = 1.449 : 1 : 1.202 |
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| Unit Cell Volume: | V 377.58 ų (Calculated from Unit Cell) |
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| Z: | 2 |
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| Morphology: | Tabular on {-201}, also showing {001}, {101}, {-101}, {-102} and {-111} |
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| X-Ray Powder Diffraction: | | d-spacing | | Intensity | | 4.586 | | (40) | | 3.196 | | (100) | | 2.980 | | (72) | | 2.821 | | (44) | | 2.507 | | (47) | | 1.702 | | (57) |
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Optical Data of Nickelschneebergite |
| Type: | Biaxial (+) |
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| RI values: | nα = 1.920 nβ = 1.950 nγ = 1.970 |
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| 2V: | Calculated: 77° |
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| Maximum Birefringence: | δ = 0.050
 Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration. |
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| Surface Relief: | Very High |
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| Pleochroism: | Weak |
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| Comments: | Weak to distinct, depending on Fe content. With X = Z = pale yellow, Y = brown. |
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Chemical Properties of Nickelschneebergite |
| Formula: | | (Bi | | ,Ca)(Ni,Co,Fe | | ) | | (AsO | | ) | | · 2(OH,H | | O) |
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| Essential elements: | As, Bi, H, Ni, O |
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| All elements listed in formula: | As, Bi, Ca, Co, Fe, H, Ni, O |
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| Analytical Data: | Electron microprobe analysis for Type Locality material.
CaO 2.68
NiO 14.75
CoO 7.98
ZnO 0.09
PbO 0.35
Fe^2O^3 2.19
Bi^2O^3 28.54
P^2O^5 0.08
As^2O^5 38.26
H^2O 4.72 (calc)
Total: 99.64 wt. % |
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| Empirical Formula: | | (Bi | | Ca | | Pb | | ) | | (Ni | | Co | | Fe | | ) | | (AsO | | ) | | [(H | | O) | | (OH) | | ] | | |
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Relationship of Nickelschneebergite to other Species |
| Member of: | Tsumcorite Group |
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Other Members of Group:
- + | |
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Related Minerals - Nickel-Strunz Grouping):
- + | |
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Other Names for Nickelschneebergite |
| Synonyms: | |
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| Other Languages: | |
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Other Information |
| Health Warning: | No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care. |
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References for Nickelschneebergite |
Reference List:
- + | Krause, W., Bernhardt, H.-J., Effenberger, H., and Witzke, T. (2002): Schneebergite and nickelschneebergite from Schneeberg, Saxony, Germany: the first Bi-bearing members of the tsumcorite group. European Journal of Mineralogy: 14: 115-126.
American Mineralogist (2003): 88: 253 (abstract).
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Internet Links for Nickelschneebergite |
| Search Engines: |
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| External Links: | Look for Nickelschneebergite on WebmineralLook for Nickelschneebergite on Athena Mineralogy [Link dead]Look for Nickelschneebergite on Mineralien AtlasRaman and XRD data at RRUFF projectAmerican Mineralogist Crystal Structure DatabaseNickelschneebergite details from Handbook of Mineralogy (PDF) |
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Localities for Nickelschneebergite |
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