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MgSi3

Traditional Materials TRA

MP-ID: mp-1185967 · Space group: P6_3/mmc (#194)

Basic Information

Formula
MgSi3
MP-ID
mp-1185967
Elements
2
Sites
8
Density
2.7551
g/cm³
Volume
130.86
ų
Cell a
5.6593
Å
Cell b
5.6593
Å
Cell c
4.7180
Å
α Angle
90.00
°
β Angle
90.00
°
γ Angle
120.00
°
Space Group
P6_3/mmc
Point Group
6/mmm
Crystal System
Hexagonal
Bravais Lattice
Hexagonal P
Stability
No
Packing Fraction
0.7400

X-ray Diffraction

Diffraction Pattern
X-axis: 2θ (°); Y-axis: relative intensity; CuKa ; λ=1.5406 Å
Diffraction Peaks (Top 20)
2θd (Å)Ihkl
18.10 4.9011 9.4 (1,0,-1,0)
36.67 2.4506 35.9 (2,0,-2,0)
38.15 2.3590 44.8 (0,0,0,2)
41.53 2.1747 100.0 (2,0,-2,1)
41.53 2.1747 50.0 (2,-2,0,1)
49.19 1.8525 1.6 (3,-1,-2,0)
53.11 1.7243 1.2 (3,-1,-2,1)
53.95 1.6995 22.4 (2,0,-2,2)
59.92 1.5438 4.5 (3,0,-3,1)
63.90 1.4569 1.4 (3,-1,-2,2)
66.03 1.4148 7.4 (2,2,-4,0)
66.03 1.4148 14.8 (4,-2,-2,0)
71.25 1.3236 29.3 (2,0,-2,3)
77.98 1.2253 2.3 (4,0,-4,0)
77.98 1.2253 1.1 (4,-4,0,0)
78.90 1.2133 26.9 (4,-2,-2,2)
81.09 1.1859 11.8 (4,0,-4,1)
81.09 1.1859 5.9 (4,-4,0,1)
81.63 1.1795 4.7 (0,0,0,4)
85.75 1.1330 1.1 (3,0,-3,3)
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Energy Properties

Formation Energy/atom
0.36654
eV/atom
Energy/atom
-4.11006
eV/atom
Energy above Hull
0.4073
eV/atom
Uncorrected Energy
-4.1633
eV/atom
Volume/atom
16.36
ų
c/a Ratio
0.8337

Electronic Properties

Metallic
Metal
Band Gap
0
eV
Direct Gap
No
CBM
N/A
eV

Magnetic Properties

Magnetic
No
Total Mag. Moment
0.0010
μB
Mag. Ordering
NM
Mag. Sites
0
Magnetization/Volume
0.000010
μB/ų

Elastic Properties

Elastic data not available

Feature Analysis

Composition Overview

Element Composition (atomic fraction)
Composition Info
Major / Matrix Element
Si · 0.750
Element Family
N/A
Solute Fraction
0.250
Interstitial Fraction
0.750

Traditional Material Features

ROM Blended-Feature Radar
Rating & Classification
Tier
A
Score
0.521
Family
Binary Alloy
Matrix Element
Si · 0.750

Related Tasks

Related computation task IDs (1)

Citation & References

Materials Project Page
https://materialsproject.org/materials/mp-1185967
Reference Citation

The crystal structure and related material properties of MgSi3 were obtained from the Materials Project database (MP-ID: mp-1185967, database version v2026.04.13).

Literature Citation

Horton, M.K., Huck, P., Yang, R.X. et al. Accelerated data-driven materials science with the Materials Project. Nat. Mater. 24, 1522–1532 (2025). https://doi.org/10.1038/s41563-025-02272-0

BibTeX
@article{Horton2025,
  author  = {Horton, Matthew K. and Huck, Patrick and Yang, Ruo Xi and Munro, Jason M. and Dwaraknath, Shyam and Ganose, Alex M. and Kingsbury, Ryan S. and Wen, Mingjian and Shen, Jimmy X. and Mathis, Tyler S. and Kaplan, Aaron D. and Berket, Karlo and Riebesell, Janosh and George, Janine and Rosen, Andrew S. and Spotte-Smith, Evan W. C. and McDermott, Matthew J. and Cohen, Orion A. and Dunn, Alex and Kuner, Matthew C. and Rignanese, Gian-Marco and Petretto, Guido and Waroquiers, David and Griffin, Sinead M. and Neaton, Jeffrey B. and Chrzan, Daryl C. and Asta, Mark and Hautier, Geoffroy and Cholia, Shreyas and Ceder, Gerbrand and Ong, Shyue Ping and Jain, Anubhav and Persson, Kristin A.},
  title   = {Accelerated data-driven materials science with the Materials Project},
  journal = {Nature Materials},
  year    = {2025},
  volume  = {24},
  number  = {10},
  pages   = {1522--1532},
  month   = {oct},
  doi     = {10.1038/s41563-025-02272-0},
  issn    = {1476-4660},
  url     = {https://doi.org/10.1038/s41563-025-02272-0},
  abstract = {The Materials Project was launched formally in 2011 to drive materials discovery forwards through high-throughput computation and open data. More than a decade later, the Materials Project has become an indispensable tool used by more than 600,000 materials researchers around the world. This Perspective describes how the Materials Project, as a data platform and a software ecosystem, has helped to shape research in data-driven materials science. We cover how sustainable software and computational methods have accelerated materials design while becoming more open source and collaborative in nature. Next, we present cases where the Materials Project was used to understand and discover functional materials. We then describe our efforts to meet the needs of an expanding user base, through technical infrastructure updates ranging from data architecture and cloud resources to interactive web applications. Finally, we discuss opportunities to better aid the research community, with the vision that more accessible and easy-to-understand materials data will result in democratized materials knowledge and an increasingly collaborative community.}
}

3D Crystal Structure Rendering

Loading 3D structure…

Style: Ball & Stick
Raw CIF Data
# generated using pymatgen
data_MgSi3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.65931340
_cell_length_b   5.65931340
_cell_length_c   4.71795800
_cell_angle_alpha   90.00000000
_cell_angle_beta   90.00000000
_cell_angle_gamma   119.99999299
_symmetry_Int_Tables_number   1
_chemical_formula_structural   MgSi3
_chemical_formula_sum   'Mg2 Si6'
_cell_volume   130.86159898
_cell_formula_units_Z   2
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
loop_
 _atom_site_type_symbol
 _atom_site_label
 _atom_site_symmetry_multiplicity
 _atom_site_fract_x
 _atom_site_fract_y
 _atom_site_fract_z
 _atom_site_occupancy
  Mg  Mg0  1  0.66666700  0.33333300  0.25000000  1.0
  Mg  Mg1  1  0.33333300  0.66666700  0.75000000  1.0
  Si  Si2  1  0.15309200  0.30618300  0.25000000  1.0
  Si  Si3  1  0.15309200  0.84690800  0.25000000  1.0
  Si  Si4  1  0.69381700  0.84690800  0.25000000  1.0
  Si  Si5  1  0.30618300  0.15309200  0.75000000  1.0
  Si  Si6  1  0.84690800  0.15309200  0.75000000  1.0
  Si  Si7  1  0.84690800  0.69381700  0.75000000  1.0
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