Actually in Madogo sub/county of Tana River County. Another place is Isinya in KajiadoMined in Garissa
Dealt with them before those alkabab killings in Garissa made the business untenable. Became too expensiveThose brownish rocks are called gypsum ( Calcium Suphate). Mined in Garissa and sold to cement factories in Kenya and Uganda. Ukizitaka ule champ wa dago hawezi kosa.