It was further determined that if one calculates the Roman foot from the quadrantal, the cube equal to 80 librae of water, and the libra is calculated from the sample weights, one obtains a foot that goes from the length of the pes Aebutianus to a maximum of about 131.8. Paris lines (297.3428 mm.).
Crystallization is also a chemical solidâliquid separation technique, in which mass transfer of a solute from the liquid solution to a pure solid crystalline phase occurs. In chemical engineering crystallization occurs in a crystallizer.
Twinning (crystallography). A process in which two or more crystals, or parts of crystals, assume orientations such that one may be brought to coincidence with the other by reflection across a plane or by rotation about an axis.winning of calcite by the pressure of a blade (Baumhauerâs method). If the structural homogeneity of a single crystal is disrupted by a great number of twin formations, the crystal is called a polysynthetic twin (Figure 3).