Liebermannite
KAlSi3O8
third-order Birch-Murnaghan · Original · 2025
V₀
238.4
ų
Unit cell
K₀
187.290
GPa
Isothermal
K′
4.340
dimensionless
Volume (V₀)
| Value | Unit | Basis | Z |
|---|---|---|---|
| 238.4 | ų | Unit cell | — |
Reported value and unit are preserved as extracted. Z (formula units per cell) is not stored yet, so molar ↔ ų/f.u. conversion is not applied automatically.
Composition
| Oxide | Molar |
|---|---|
| K2O | 0.5 |
| Al2O3 | 0.5 |
| SiO2 | 3 |
Formula: KAlSi3O8
Conditions & method
- Tref
- 600 K
- Pref
- —
- Structure
- hollandite / hollandite-II
- Method
- first-principles DFT / ab initiofirst-principles calculations (DFT, LDA, quasiharmonic approximation)
- Sample
- This study (0–27 GPa), 600 K
Source
- Paper
- Seismic signature of the upper continental crust: Implications from the thermoe…
- Authors
- Dong Wang; Longyu Duan; Xin Deng; Wenzhong Wang; Zhongqing Wu
- DOI
- 10.2138/am-2024-9562
- Year
- 2025
- Journal
- American Mineralogist
- Origin
- Original (measured or fitted in the source paper)
Evidence from the paper
Table 1: Liebermannite, This study, 600 K, V0 = 238.40 ų, K_T = 187.29 GPa, (∂K_T/∂P)_T = 4.34.