Beyerite (original) (raw)
A valid IMA mineral species - grandfathered
About BeyeriteHide
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Colour:
White to bright yellow, or greyish-green, grey; light yellow to colourless in transmitted light
Lustre:
Adamantine, Vitreous
Crystal System:
Orthorhombic
Name:
Named after Adolph Beyer (1743-1805), mining engineer of Schneeberg, Saxony, who recognized the occurrence of a bismuth carbonate, bismutite, in nature.
An uncommon secondary Ca-Bi carbonate visually indistinguishable from Bismutite and Kettnerite.
Unique IdentifiersHide
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Long-form identifier:
mindat:1:1:654:1
d3e2f674-4d77-4da0-8059-bde934178bdb
IMA Classification of BeyeriteHide
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Approved, 'Grandfathered' (first described prior to 1959)
IMA Formula:
CaBi2O2(CO3)2
Classification of BeyeriteHide
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5.BE.35
5 : CARBONATES (NITRATES)
B : Carbonates with additional anions, without H2O
E : With Pb, Bi
16a.2.3.1
16a : ANHYDROUS CARBONATES CONTAINING HYDROXYL OR HALOGEN
2 : (AB)3(XO3)2Zq
11.10.2
11 : Carbonates
10 : Carbonates of Bi
Mineral SymbolsHide
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As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
| Symbol | Source | Reference |
|---|---|---|
| Bey | IMA–CNMNC | Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
Physical Properties of BeyeriteHide
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Colour:
White to bright yellow, or greyish-green, grey; light yellow to colourless in transmitted light
Density:
6.56 g/cm3 (Measured) 6.47 g/cm3 (Calculated)
Optical Data of BeyeriteHide
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RI values:
_n_ω = 2.130 _n_ε = 1.970
δ = 0.160
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Pleochroism:
Non-pleochroic
Comments:
Anomalous biaxial character exhibited in some crystals with a very small 2V.
Chemistry of BeyeriteHide
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Mindat Formula:
Ca(BiO)2(CO3)2
Chemical AnalysisHide
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Crystallography of BeyeriteHide
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Crystal System:
Orthorhombic
Class (H-M):
m m m _(_2/_m_2/_m_2/m ) - Dipyramidal
Cell Parameters:
a = 3.7725 Å, b = 3.7742 Å, c = 21.726 Å
α = 90°, β = 90°, γ = 90°
Ratio:
a:b:c = 1 : 1 : 5.756
Morphology:
Rectangular plates flattened {001} forming spherical and radial-fibrous structures. Compact earthy masses.
Crystal StructureHide
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| ID | Species | Reference | Link | Year | Locality | Pressure (GPa) | Temp (K) |
|---|---|---|---|---|---|---|---|
| 0005771 | Beyerite | Grice J D (2002) A solution to the crystal structures of bismutite and beyerite The Canadian Mineralogist 40 693-698 |  |
2002 | 0 | 293 |
CIF Raw Data - click here to close
X-Ray Powder DiffractionHide
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Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 3.632 Å | (60) |
| 3.354 Å | (60) |
| 2.851 Å | (100) |
| 2.721 Å | (90) |
| 1.755 Å | (80) |
| 1.688 Å | (70) |
| 1.530 Å | (80) |
Geological EnvironmentHide
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Type Occurrence of BeyeriteHide
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General Appearance of Type Material:
Pulverulent earthy masses and drusy crystals; massive earthy. The crystals are sparkling rectangular plates up to 0.5 mm. The plates are extremely thin and are commonly grouped into subparallel aggregates or rosettes.
Place of Conservation of Type Material:
Harvard University, Cambridge, Massachusetts, USA, numbers 91593, 111598.
National Museum of Natural History, Washington, D.C., USA, numbers 94017, C2251, R2756.
Associated Minerals at Type Locality:
Other Language Names for BeyeriteHide
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Common AssociatesHide
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Associated Minerals Based on Photo Data:
Related Minerals - Strunz-mindat GroupingHide
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Other InformationHide
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Notes:
Readily soluble in acids with effervescence.
Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.
Internet Links for BeyeriteHide
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References for BeyeriteHide
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Reference List:
Localities for BeyeriteHide
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This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the 
symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.
Locality ListHide
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- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for references and further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. 
- Good crystals or important locality for species. 
- World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (e.g. from pseudomorphs).
All localities listed without proper references should be considered as questionable.