Granite is a felsic or acidic rock. A vesicle is a cavity formed by expanding gas during the cooling of an extrusive igneous rock. A good example of vesicles are those found in pumice. If a vesicle is filled in by a secondary mineral it is described as an amygdale.
InformAfrica â Kisii County is a district in the Nyanza Province of southwestern Kenya, and is mostly inhabited by the Gusii tribe or Kisii people. Kisii is the capital town of Kisii county. As of 2010, Kisii county has 7 constituencies which are: Bobasi, Bonchari, Bomachoge, Kitutu Chache, Nyaribari Chache, Nyaribari Masaba, and South Mugirango.
Kenya offers quality wildlife-viewing throughout the year, but the ultimate times are in the Dry season from June to October. This corresponds with the wildebeest migration in the Masai Mara. The exact timing depends upon rainfall, but its typically in August when the wildebeest migration reaches the northern Serengeti and they begin to cross into the Masai Mara. In October they make their move back into the Serengeti.