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.
By David Rowan. An outbreak of highland malaria in Kenya has killed more than 300 people and infected over 158,000 others since June. The epidemic has affected the Rift Valley and Nyanza provinces in the west of the country, about 300 kilometres north of the capital Nairobi.y David Rowan. An outbreak of highland malaria in Kenya has killed more than 300 people and infected over 158,000 others since June. The epidemic has affected the Rift Valley and Nyanza provinces in the west of the country, about 300 kilometres north of the capital Nairobi.