 | Acta Crystallographica Section A Acta Crystallographica Section A FOUNDATIONS AND ADVANCES |
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![[Figure 1]](uv5025fig1mag.jpg)
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Figure 1
(a) The chain of (SiO4)4− tetrahedra in astrophyllite-supergroup minerals, and (b) the graphical representation of this chain (chain graph) in which tetrahedra are represented as vertices and the linkages between tetrahedra are represented as edges. Red arrows show T–T separations which are constrained to be at least 3.713 Å during embedding. Black arrows indicate T–T distances which are constrained to be 3.06±0.15 Å during embedding. |
![[Figure 1]](uv5025fig1.jpg)
| FOUNDATIONS ADVANCES |
ISSN: 2053-2733
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