1. Lithology ya transland irenze, imiterere ni yoroshye, biroroshye cyane kuri ubunara na nzira, ubucucike ni bworoheje, kandi biroroshye gutwara. Nubwoko bwo kubaka ibuye hamwe nuburyo bunini bwo gukoresha.
2. AkanyaIfite gahunda nziza, kwinjiza amajwi no kwinjiza ubushyuhe, kandi irashobora gukoreshwa mugutunganya cyane.
3. Akanyaifite imiterere nziza, guhuza n'imihindagurikire yo gutunganya cyane, no gukomera hasi. Birakwiriye ibikoresho bibabaza nibikoresho bifatika.
4. Akanyani umukire mu ibara, idasanzwe muburyo, kandi ifite imiterere idasanzwe, ifite imikorere myiza yo gushushanya.