Mwala wachilengedwe umatanthawuza miyala ya sedimentary kapena metamorphic carbonate monga nsangalabwi, dolomite, miyala yamchere, sandstone, shale ndi slate. Mwala wamakono wachilengedwe umakumbidwa kuchokera ku thanthwe lachilengedwe, ndiyeno pambuyo pokonza zinthu zingapo, Monga kunena za zinthu zomwe zimagwiritsidwa ntchito pokongoletsa nyumba, nyumba zambiri zokongoletsa mwala wachilengedwe makamaka granite ndi nsangalabwi mitundu iwiri.
Granite ndi mwala woyaka moto, wotchedwanso acid crystalline plutonic rock. Ndiwo mwala womwe umagawidwa kwambiri, wopangidwa ndi feldspar, quartz ndi mica, rock hard dense. Granite imapangidwa makamaka ndi silicon dioxide, pafupifupi 65% -75% ya otchedwa igneous thanthwe ndi magma mobisa kapena kuphulika kwa chiphalaphala cha lava crystallization of thanthwe.
Marble ndi thanthwe la metamorphic lomwe limapangidwa ndi kutentha kwambiri komanso kuthamanga kwapakati pa Central Plain. Mphamvu ya mkati mwa kutumphuka kwa dziko lapansi imayambitsa kusintha kwamtundu wa miyala yoyambirira, mwachitsanzo, kapangidwe kake, kapangidwe kake ndi kapangidwe ka mchere wa miyala yoyambirira imasinthidwa. Miyala Yatsopano yopangidwa ndi metamorphism imatchedwa metamorphic rocks.