Comparison of magnetic properties, specific gravity and unit cell parameters of ilmenites

Abstract

Nineteen samples of ilmenite were studied (Table 1), of which one sample 436a was a krichtonite, i.e., ilmenite almost free of magnesium, from a differentiated trap intrusion on the Alamzhakh River, and the remaining 18 samples were collected with the help of an electromagnet from kimberlite flows from the Zarnitsa and Mir diamondiferous pipes (Yakutia). From crushed ilmenite, individual fractions were sampled at different current strengths in the electromagnet in the range 0.4-1.2 a every 0.1 a. Two such series of samples of 9 fractions each were selected. The first series from I-1 to I-8 and I-19 is represented by ilmenite from the “Mir” tube, the second - from I-9 to I-28 from the “Zarnitsa” tube. Specific gravity was determined for all selected fractions.