Figure 9
A hypothetical dimer derived from a clinotobermorite that had BT that were adjacent to one another. Space group C12/c1 (No. 15, unique axis b, cell choice 1); a = 11.35, b = 7.3, c = 21.5 Å, β = 98.4°; full details are in the CIF
datablock T2_ac. (a) Viewed along the a axis (edge lengths are b and csin β = 21.27 Å), and (b) viewed along the b axis (edge lengths a and c). The relationship of the interlayer Ca with the silicate tetrahedra is illustrated in (c) and (d). |