Unnamed Organometallic Se Phase
A material that is NOT an approved mineral species
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About Unnamed Organometallic Se Phase
Formula:
C, H, Se (?)
Colour:
Lemon-yellow
Lustre:
Adamantine
Crystal System:
Orthorhombic
Formed in vents (in the smoldering Anna coaldump) with a temperature of around 80°C, near kremersite-bearing vents, as bright lemon-yellow, transparent crystals with an adamantine luster. The phase forms prismatic to acicular crystals that are often twinned.
The X-ray powder diffraction data does not fit any phase in the ICDD-PDF database. EDS analyses showed only Se but no other elements with atomic number greater than 7. A single-crystal structure analysis yielded the preliminary data: orthorhombic cell, probably Pmn21, a = 3.811, b = 7.874, c = 14.421 Å. Only part of the crystal structure could be solved due to problems of twinning and relatively low crystal quality; the phase seems to contain Se atoms attached to organic ring molecules. The phase occurs together with sulfate minerals.
The X-ray powder diffraction data does not fit any phase in the ICDD-PDF database. EDS analyses showed only Se but no other elements with atomic number greater than 7. A single-crystal structure analysis yielded the preliminary data: orthorhombic cell, probably Pmn21, a = 3.811, b = 7.874, c = 14.421 Å. Only part of the crystal structure could be solved due to problems of twinning and relatively low crystal quality; the phase seems to contain Se atoms attached to organic ring molecules. The phase occurs together with sulfate minerals.
Unique Identifiers
Mindat ID:
47537
Long-form identifier:
mindat:1:1:47537:0
GUID
(UUID V4):
(UUID V4):
230a9981-b8eb-4482-8e91-d12bb539deff
Physical Properties of Unnamed Organometallic Se Phase
Chemical Properties of Unnamed Organometallic Se Phase
Formula:
C, H, Se (?)
Elements listed:
Crystallography of Unnamed Organometallic Se Phase
Crystal System:
Orthorhombic
Cell Parameters:
a = 3.811 Å, b = 7.874 Å, c = 14.421 Å
Ratio:
a:b:c = 0.484 : 1 : 1.831
Unit Cell V:
432.74 ų (Calculated from Unit Cell)
Common Associates
Kremersite | (NH4,K)2[Fe3+Cl5(H2O)] |
Other Information
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 Unnamed Organometallic Se Phase
mindat.org URL:
https://www.mindat.org/min-47537.html
Please feel free to link to this page.
Please feel free to link to this page.
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References for Unnamed Organometallic Se Phase
Reference List:
Localities for Unnamed Organometallic Se Phase
Locality List
- 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.
All localities listed without proper references should be considered as questionable.
Germany | |
|
Anna mine, Alsdorf, Aachen, Cologne, North Rhine-Westphalia, Germany