Table 1
Samples in our set with their relative chemical formula, form, origin, and reference index.
| Name | Chemical formula | Form | #Mod |
|---|---|---|---|
| Enstatite (a) | MgSiO3 | Amorphous | 1 |
| Enstatite (b) | MgSiO3 | Crystalline | 2 |
| Forsterite (c) | Mg2SiO4 | Crystalline | 3 |
| Hypersthene (d) | Mg1.502Fe0.498Si2O6 | Crystalline | – |
| Olivine (a) | MgFeSiO4 | Amorphous | 4 |
| Olivine (e) | Mg1.56Fe0.4Si0.91O4 | Crystalline | 5 |
| En60Fs40 (a) | Mg0.6Fe0.4SiO3 | Amorphous | 6 |
| En60Fs40 (a) | Mg0.6Fe0.4SiO3 | Crystalline | 7 |
| En75Fs25 (a) | Mg0.75Fe0.25SiO3 | Amorphous | 8 |
| En90Fs10 (a) | Mg0.9Fe0.1SiO3 | Amorphous | 9 |
| En90Fs10 (a) | Mg0.9Fe0.1SiO3 | Crystalline | 10 |
| Spinel (f) | MgAl2O4 | Crystalline | – |
| Quartz (g) | SiO2 | Crystalline | 11 |
| Quartz (g) | SiO2 | Amorphous | 12 |
| Quartz (g) | SiO2 | Amorphous | 13 |
| Fayalite (g) | Fe2SiO4 | Crystalline | 14 |
| Magnesia (h) | MgO | Crystalline | 15 |
Notes.In the top part of the table we list the compounds for which the Mg K-edge was analysed in the present work. (a) Synthesised in laboratories at AIU Jena and Osaka University. (b)Origin: Kiloza, Tanzania. (c)Commercial product (Alfa Aesar). (d)Origin: Paul Island, Labrador. (e)Origin: Sri Lanka. (f)Commercial product (Aldrich). (g)We refer to Zeegers et al. (2019); the quartz have two different stages of amorphisation. (h) Also known as magnesium oxide, data taken from Fukushi et al. (2017).
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