Pounamu karāheHe ipu tākai inu waipiro tuku iho i Haina, ā, he momo rauemi tākai hoki te karāhe me te hītori roa. I roto i te take o te maha o ngā momo rauemi tākai e waipuke ana ki te mākete, kei te noho tonu te ipu karāhe i tētahi tūranga nui i roto i te tākai inu. Ā, he maha atu ngā rauemi tākai kāore e taea te whakakapi e ngā āhuatanga tākai e kore e taea te wehe. Inaianei me mārama koe ki te hanga pounamu karāhe.
1.Tukanga Hangarau
Tepounamu karāhe waipiroKo te tukanga whakaputa ko: 1) Ka tukatukahia te rauemi mata hei kuru i ngā rauemi mata poraka (onepu kiripaka, houra tunutunu, kōhatu kōhatu, feldspar, me ētahi atu) hei whakamaroke i ngā rauemi mata mākū, ka tangohia ngā rauemi mata kei roto te rino hei whakarite i te kounga o te karāhe. 2) Te whakarite i te matū. 3) Te whakatūnga. Ka whakamahanahia te matū karāhe ki te pāmahana teitei (1550~1600 nekehanga) i roto i te oumu tāke, i te oumu rānei, kia rite te āhua, kia kore he mirumiru, kia tutuki ai ngā whakaritenga hanga o te karāhe wai. 4) Te hanga. Tāpirihia te karāhe wai ki roto i te pokepoke hei hanga i te āhua e hiahiatia ana o ngā hua karāhe, pērā i ngā pereti, ngā taputapu, me ētahi atu. 5) Te whakamahana. Mā te whakamahana me te tinei me ētahi atu tukanga, ka whakakorea, ka puta rānei te wehenga wāhanga ahotea, te tioata rānei i roto i te karāhe, ka huri i te āhua hanganga o te karāhe.
2. Rere Mahi
Ko te taahiraa tuatahi ko te hoahoa, te whakatau me te hanga i te pokepokea ai. Ko te rauemi mata o te karāhe ko te onepu kuata hei rauemi mata matua, ā, ko ētahi atu rauemi āwhina ka rewa ki roto i te wai i te pāmahana teitei, kātahi ka werohia ki roto i te pokepokea ai, ka whakamatao i te tapahi me te whakamahana, ā, ka hangaia te pounamu karāhe. Ko ngā pounamu karāhe he tohu pakari i te nuinga o te wā, ko ngā tohu he mea hanga mai i te ahua pokepokea ai te pounamu karāhe, e ai ki te tikanga whakaputa ka taea te wehewehe ki te pupuhi ā-ringa, te pupuhi miihini me te whakaputanga. E ai ki te hanganga o ngā pounamu karāhe ka taea te wehewehe ki ngā momo e whai ake nei: ko tētahi he karāhe konutai, ko ētahi he karāhe mata, ko ētahi he karāhe borosilicate.
Ko ngā rauemi mata matua o ngā pounamu karāhe he konganuku tūturu, he kōhatu kuata, he houra tunutunu, he kōhatu papa kōhatu, me ērā atu.Ngā pounamu karāheHe tino mārama, ā, he ātete ki te waikura. E kore te pānga ki te nuinga o ngā matū e whakarerekē i ngā āhuatanga o te rauemi. He māmā noa te tukanga hanga, he kore utu, he rerekē te āhua, he nui te pakeke, he ma te ātete wera, he ngāwari ki te horoi, ā, ka taea te whakamahi anō. Engari he ngoikoretanga anō hoki ō ngā pounamu karāhe, pērā i te taumaha nui, te utu nui mō te rokiroki kawe, te ātete pānga me ērā atu mea.
Wā tuku: Whiringa-ā-rangi 19-2024