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.
The capital, Nairobi, is a regional commercial hub. The economy of Kenya is the largest by GDP in East and Central Africa. Agriculture is a major employer; the country traditionally exports tea and coffee and has more recently begun to export fresh flowers to Europe. The service industry is also a major economic driver.he capital, Nairobi, is a regional commercial hub. The economy of Kenya is the largest by GDP in East and Central Africa. Agriculture is a major employer; the country traditionally exports tea and coffee and has more recently begun to export fresh flowers to Europe. The service industry is also a major economic driver.