Ke koho ʻana i nā pōhaku no ka hana ʻana i kahi puʻu alpine, e hoʻomanaʻo ʻia ʻoi aku ka maikaʻi o nā pōhaku kahiko i mālama ʻia i ka wai a i ʻole ka makani paha, ʻoi aku ka waiwai ma mua o nā mea i kāula ʻia i mua. ʻO ka maʻamau, ʻo nā mea nui e kaupaona ana mai ka 12 kilokileka i kahi centen e hoʻohana ʻia no ke kūkulu ʻana i kēia hana. No ka hoʻolālā ʻana i kahi kīhāpai he nui ka nui o nā puka pōhaku, nā minelala a me nā pali.
Manaʻo ʻia ʻo Limestone kekahi o nā mea maʻamau maʻamau. No ka laʻana, hiki iā ʻoe ke koho i nā pōhaku e like me dolomite, limapa a me nā mea ʻē aʻe. Ua loaʻa iā lākou ia kaulana loa e pili ana i ka palahalaha koke o ko lākou mau kihi ʻehā, a ma ka laulā, ʻōmaʻomaʻo koke ʻia nā pōhaku e ka makani.
ʻAʻole liʻiliʻi nā helehelena. He mea nui ia e hoʻomaopopo he hoʻokomo ʻia ka quartz i kā lākou hoʻokūkū. ʻO kēlā mau ʻano manuahi he mau pālahalaha like ʻole o nā kala like ʻole. Hiki iā lākou ke one, cream hina a ʻulaʻula paha. Akā, ʻaʻole e like me ka calcareous, ke hoʻomohala nui nei kēlā mau pōhaku i nā manawa ākea a me kā lākou mau koi e hoʻomau no ka manawa
Manaʻo ʻia ka pōhaku Granite i kahi kūpono no ke kūkulu ʻana a me ka mea hoʻonanea maikaʻi. Akā nō naʻe, loaʻa i nā helu minuses
1) Ua anu a nui loa kēia pōhaku
2) Hoʻomaʻamaʻa maikaʻi ka lepo
3) Hiki iā ia i kahi lōʻihi ke loaʻa i kahi nānā kūlohelohe.
Ke hoʻohana nei i nā pōhaku pele, ʻoi aku ka hōʻoia o ka lōʻihi o kou kālai ʻana, no ka mea ua hoʻonui lākou i ka ikaika. Hiki iā ʻoe ke koho i ka pu volcanic a basalt paha. He mea kaulana loa kēlā mau ʻōhua ma ka hoʻolālā ʻāina ma muli o ka loaʻa ʻana o kahi ʻano nani a nani a nani hoʻi. Hiki iā ʻoe ke hoʻohana iā ia i ke kūkulu ʻana i nā aniani, e hana ana i nā simulasi o nā pali i paʻa ʻole i ka pihi.
