I raro i ngā āhuatanga noa, kāore te matotoru o te karāhe e tino rerekē i roto i te wā, engari i raro i ētahi āhuatanga motuhake, ka rerekē pea. Koinei te tātaritanga mai i ngā āhuatanga rerekē:
I raro i ngā āhuatanga noa, he pumau te matotoru
He toka mura te karāneti, he mea tito mai i ngā kohuke pēnei i te feldspar, te quartz me te mika, ā, he roa, he uaua hoki te tukanga hanganga. I muri i tōna hanganga, he pumau tonu te hanganga o roto o te kohuke me te hanganga matū. He hanganga matotoru te karāneti, he rite tonu, he pai hoki ngā matūriki. Ko tōna kaha ki te urungi he 0.3% - 0.7% te nuinga, ā, ko tōna tere mimiti wai kei waenganui i te 0.15% me te 0.46%. Mēnā kāore e pāngia e ngā pānga ā-tinana me ngā pānga matū kaha mai i waho, e kore e ngāwari te whakarerekē i te whakatakotoranga o ngā kohuke i roto, ā, ka noho tonu te papatipu mō ia rōrahi, me te pumau tonu o te mātotoru. Hei tauira, kua roa ngā wāhanga karāneti i whakamahia i roto i ētahi whare tawhito e mau ana mō ngā rau, tae atu ki ngā mano tau. I roto i te āhua pai o te tiaki, kāore anō kia kitea he panoni o tōna mātotoru.
Ka taea e ngā āhuatanga motuhake te arahi ki ngā panonitanga o te mātotorutanga
Pānga ā-tinana: Mena ka pāngia te karāneti e ngā kaha nui o waho pērā i te pēhitanga me te pānga mō te wā roa, ka pāngia pea e ngā huringa iti i roto i tōna hanganga o roto. Hei tauira, i ngā wāhi e maha ana ngā rū whenua, ka pāngia te karāneti e te ahotea kaha e puta mai ana i te nekehanga o te kiripaka. Ka pēhia pea ngā āputa i waenganui i ngā matūriki kohuke o roto, ā, ka katia pea ngā pūwero iti o mua, ka hua ake he pikinga o te papatipu o te rauemi mō ia rōrahi me te pikinga o te mātotoru. Heoi, he iti noa iho ēnei huringa, ā, me tino kaha, me haere tonu hoki ngā kaha o waho.
Tauhohenga matū: Ina roa te wā e pāngia ai te karāneti ki tētahi taiao matū motuhake, ka rerekē pea tōna matotoru. Hei tauira, ki te roa te wā e pāngia ai te karāneti ki ngā matū waikawa, ka pāngia pea ētahi o ōna wāhanga kohuke e ēnei matū. Ka waikura pea ngā kohuke pēnei i te feldspar me te mika, ka rewa hoki i roto i ngā taiao waikawa, ka ngaro ai ētahi matū. Ka hua ake tēnei he nui ake ngā āputa i roto i te karāneti, ka heke te papatipu katoa, ā, ka heke te matotoru. Hei tāpiri, ina roa te wā e pāngia ai te karāneti ki tētahi taiao haukū me te nui o te hauhā waro, ka pāngia pea e ngā tauhohenga waro, ka pā anō hoki ki tōna hanganga me tōna hanganga o roto, ā, ka pā anō hoki ki tōna matotoru.
Te Huarere: I raro i ngā pānga huarere ā-taiao mō te wā roa pērā i te hau, te pānga o te rā me te ua, ka āta tihorea te mata o te karāneti, ka pirau. Ahakoa ka pā te huarere ki te paparanga mata o te karāneti, i te haere o te wā, ka hohonu haere te huarere, ka ngaro te rauemi katoa o te karāneti. I raro i te āhuatanga ka noho tonu te rōrahi, ka iti rānei te rerekētanga, ka heke te papatipu, ka heke hoki te mātotoru. Heoi, he tino puhoi te tukanga huarere, ā, ka roa pea ngā rau, ngā mano tau rānei kia tino rerekē te mātotoru.
I te nuinga o te wā, i raro i ngā āhuatanga taiao me ngā āhuatanga whakamahinga noa, ka taea te kī he pumau, kāore hoki e rerekē te matotoru o te karāhe. Heoi, i raro i te awe o ngā taiao ā-tinana, ā-matū me ā-taiao motuhake, ka rerekē pea tōna matotoru i roto i tētahi wā.
Wā tuku: Mei-19-2025