Dimension Stone Exploration and Development in Boki Area Southeastern Nigeria.|
EGESI, N. & UKAEGBU, V.U.
Rock specimens can be cut to size and used as slabs, blocks and columns,
where the strong and durable stone has been correctly selected it has stand the test of time,
crushed into aggregates or treated by cutting and polishing to make them suitable for display
or for use in jewelling. Attractive small irregular shaped specimens can be given a high polish
by hand or by thumbing them in a tumbling machine. Very hard specimens can need a great
deal of work to give them a perfect polish. Flat surfaces can be given a high polish by hand
using sandpaper. Polishing faceted stones can be quite difficult. All the cutting of all the faces
should be completed before any of them is polished. In Boki, large deposits of quarry rocks
exist which can be crushed, cut, polished, screened to various sizes and marketed for different
uses such as tiles, roads, bridges, buildings, foundations and piles construction. This report
outlines the availability of granite and charnockite igneous rocks and granite gneiss
metamorphic rock in Boki area, processes involved in dimension stone production and
investment opportunities in Boki area.
Rocks, dimension stone, petrographic analysis, quarrying, Boki area Southeastern Nigeria