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ʻO ke kūkulu ʻana i ka pōhaku ʻulaʻula pōhaku no ka tile pōhaku e uhi ana i ka paia o waho
He pōhaku sedimentary maʻamau ka pōhaku ʻulaʻula i kapa ʻia ma muli o kona kala ʻulaʻula. Hana nui ʻia ia me ka quartz, feldspar a me nā oxides hao, nā minelala e hāʻawi ana i ka pōhaku ʻulaʻula i kona kala a me ke ʻano. Hiki ke loaʻa ka pōhaku ʻulaʻula ma nā wahi like ʻole o ka ʻili o ka honua a loaʻa ma nā wahi he nui a puni ka honua.
