Unnamed (trigonal Fe2Si)
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Formula:
Fe2Si
Crystal System:
Trigonal
First Recorded Locality:
This page provides mineralogical data about Unnamed (trigonal Fe2Si).
Unique Identifiers
Mindat ID:
491123
Long-form identifier:
mindat:1:1:491123:0
Chemistry of Unnamed (trigonal Fe2Si)
Mindat Formula:
Fe2Si
Elements listed:
Crystallography of Unnamed (trigonal Fe2Si)
Crystal System:
Trigonal
Class (H-M):
3m (3 2/m) - Hexagonal Scalenohedral
Space Group:
P3m1
Setting:
P3m1
Cell Parameters:
a = 3.9782(2) Å, c = 5.0691(3) Å
Ratio:
a:c = 1 : 1.274
Unit Cell V:
69.48 ų (Calculated from Unit Cell)
Z:
2
First Recorded Occurrence of Unnamed (trigonal Fe2Si)
Geological Setting of First Recorded Material:
Here, we report the results on a study of a glass fragment from a sediment sequence at the Blackville site in South Carolina, USA. The glass was found in a 15-cm interval between 175 to 190 cm with maximum concentrations at ~183 cm below the
surface. The glass was accompanied by peak concentrations of platinum and iridium
surface. The glass was accompanied by peak concentrations of platinum and iridium
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 (trigonal Fe2Si)
mindat.org URL:
https://www.mindat.org/min-491123.html
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References for Unnamed (trigonal Fe2Si)
Reference List:
Bindi, Luca; Kennett, James P.; LeCompte, Malcolm A.; Kletetschka, Gunther; Moore, Christopher R.; West, Allen (2025) Trigonal Fe2Si from the Blackville site, South Carolina, USA: occurrence, composition and determination of the crystal structure. Mineralogical Magazine, 1-20 doi:10.1180/mgm.2025.10130
Localities for Unnamed (trigonal Fe2Si)
symbol to view information about a locality.
The 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).
All localities listed without proper references should be considered as questionable.
USA (FRL) | |
| Bindi et al. (2025) |
