Question

Difference between magnetic and pegmatite deposit

Answer 1

MAGMATIC DEPOSITS ARE ACCUMULATIONS OF MAGMATIC MINERALS.  THEY ARE CHARACTERISED BY THEIR CLOSE RELATIONSHIPS WITH INTERMEDIATE OR DEEP SEATED INTRUSIVE IGNEOUS ROCKS.  THEY CONSTITUTE EITHER THE WHOLE IGNEOUS MASS OR A PART OF IT OR MAY FORM OFFSET BODIES.  THEY ARE MAGMATIC PRODUCTS THAT CRYSTALLISE FROM MAGMA.

A pegmatite is an igneous rock, formed underground, with interlocking crystals usually larger than 2.5 cm in size (1 in). Most pegmatites are composed of quartz, feldspar and mica, having a similar silicic composition as granite.