Ko te Cobaltite he kohuke matatini matū, whai tikanga ki te ahumahi, nō te rōpū sulfarsenide, e mōhiotia ana mō tōna whiti whakarewa motuhake me te nui o te kōbalt kei roto. Ka whakarōpūhia ōkawa hei pūkongahuka kōbalt arsenic, he tino kōreko o te kōbalt, he whakarewa whakawhiti kua noho hei poutokomanawa o te pūngao kākāriki hou me te whakarewa mahi-nui. I te taha ā-ao, ka whakapūtake te kobaltite i ngā uaua waiwera pāmahana-tiketike, i ngā putunga whakarerekē whakapā rānei, he maha ngā wā ka puta hei tioata tapatoru, pyritohedral rānei, e raru ai hei pyrite, arsenopyrite rānei, ahakoa ko tōna kara māwhero-mākūkū, hina-ngāherehere rānei—he hua o te whakahāora mata—ka noho hei tohu mātai mō ngā tohunga kohuke. E mōhiotia ana te kobaltite mō tōna pūkenga ki te whakapūtake puta noa i ngā taiao ao maha, mai i ngā putunga kōreko pāmahana-tiketike ki ngā pūnaha waiwera pāmahana-iti. E tino honoa ana ki te huihuinga “e rima ngā whakarewa”, i reira e noho tahi ana me te nickel, te hiriwa, te bismuth, me ngā kohuke maha e mau ana i te arsenic. Hei āpiti, he maha ngā wā ka kitea hei wāhanga o ngā rua polymetallic mesothermal, e kitea ana i te taha o ngā pūkongahuka noa pēnei i te pyrite me te arsenopyrite. I ēnei horopaki, ka puta wawe te kobaltite i te raupapa paragenetic, he maha ngā wā ka hangaia te matua, ngā whakaurunga rānei i roto i ngā pūkongahuka whakarewa-papa o muri pēnei i te pyrrhotite, te sphalerite, me te chalcopyrite.
Ko te hītori o te cobaltite e hono ngāwari ana ki te whanaketanga o te mātauranga matū hou me ngā tikanga keri kōhatu o te Raki o Ūropi. Ko tōna ingoa i ahu mai i te kupu Tiamana kobold, e tohu ana i te wairua o raro whenua, he kupu i whakamahia e ngā kaikeri o te wā o te wharekarakia, i whakapono nei ki ēnei wairua i whakakapi i te kōhatu hiriwa utu nui ki te cobaltite whakararuraru, ki tonu i te arsenic, i tukuna ai ngā paowa paitini i te whakarewa. Kāore i tae noa ki te tau 1735 i whakaputahia e te tohunga matū o Huitene a Georg Brandt te cobalt mai i ēnei kōhatu, ka whakamātau he huānga motuhake.
I tēnei rā, ko te uara whaimana o te cobaltite e takoto ana i runga i ōna āhuatanga tinana whakamīharo me tōna wāhi ki ngā hereketanga tuku i te ao. He pakeke 5.5 i runga i te tauine Mohs, ā, he taumaha motuhake teitei e 6.33 tata, he kōhuke matotoru, mauroa hoki e mau ana i te nui o te arsenic me te whanariki. I roto i te horopaki ahumahi o nāianei, ko te tangohanga o te cobalt mai i te cobaltite he tukanga whakarewa mātauranga e tino hiahiatia ana mō te hanga i ngā katoda pākahiko lithium-ion, ngā superalloys ātete-kakahu e whakamahia ana i ngā turbine jet, me ngā aukume pūmau. I te mea kei te tere haere te hurihanga o te ao ki ngā waka hiko me ngā otinga rokiroki tauwhiro, kua huri te mātauranga kōhuke me te tika o te tiki cobaltite mai i ngā whāinga iti mātauranga ki ngā kaupapa matua mō te whakahaere rawa o te ao.
Ngā Tae Motuhake me te Whakapōhara Mata
Ahakoa he kōhuke whakarewa te kōpotaiti, he maha tonu ngā tae tuarua e kitea ana hei tohu mō te tautuhi kōhuke me te rapu hua. Ahakoa he hiriwa-mā, he kōwai-rino rānei te tae matua, he māmā tonu tēnei kōhuke ki te whākawaora mata. Nā tēnei tukanga, ka puta he tae māwhero ki te whero-papura, e mōhiotia ana ko te “pua kōpata” ko te erythrite rānei. Ko ēnei tae tuarua, mai i te māwhero pūkoro ki te kiri whero-papura hōhonu, he tohu mātātuhi nui mō ngā kaimātai whenua me ngā kaikohi, nā te mea e tohu tika ana i te kōpata me te arsenic kua whākawaora i roto i te tauira.
Cobaltite i roto i ngā Whakapaipai: Ngā Āhuatanga Ātaahua me ngā Whakaaro Haumaru
Ahakoa tōna kanapa whakarewa whakamīharo me ōna tina mākuru-ki-riki i ētahi wā, kāore e whakamahia nuitia te kobaltite hei kohatu whakapaipai tuku iho nā ngā here motuhake ā-tinana, ā-matū. Mai i te tirohanga whakapaipai kohatu, ahakoa te pakeke o Mohs e 5.5 e pakeke ake ai i te maha o ngā kohuke whakarewa, he ngohengohe ake i ngā kohuke noa pēnei i te quartz me te sapphire, e whakaraupapa ana ki te rakuraku me te ngaro o te kanapa i roto i te wā. I tua atu, he pōkākā te kobaltite i te taiao, kāore i te māramatanga me te “mura” e rapua nuitia ana i ngā kohatu whakapaipai, e whakawhāiti ai tōna whakamahinga ki ngā cabochon motuhake, ki ngā tauira whakapaipai rānei mō ngā kaikohi e mihi ana ki tōna hangarite pūtoru ahurei. I tua atu i te ātaahua, ko te haumaru te āwangawanga matua nā te mea he kohuke sulfarsenide te kobaltite, he nui te arsenic kei roto. Ahakoa e tūturu ana i te āhua orohiro, totoka, ā, kāore he mōrearea tonu mā te pā kiri noa, kāore e tūtohuhia mō ngā whakapaipai e piri tonu ana, e pā tika ana ki te kiri, nā te mea ka tauhohe pea te werawera me te hinu ki te mata i ngā wā roa. Ko te mōrearea nui rawa ka puta i te wa e tapahi ana, e orohiro ana rānei, i te tukunga o te puehu pai, e taea ai te kuhunga ohorere o ngā matūriki arsenic me te cobalt paitini. Mō ēnei take, ahakoa he tino haumaru te whai i tētahi tauira whakaatu, e whakahēhia ana e ngā tohunga hauora me ngā tohunga kohuke te whakamau i te kobaltite hei whakapaipai mata, kāore rānei i hiri.
I te wā hou, kua huri te cobaltite mai i te mea pāpātanga o mua hei rauemi rautaki tino nui. Hei kōreko matua mō te tangohanga kobalt, ko tōna whakamahinga tino nui kei te rāngai pūngao mā, inarā kei te hanga o ngā pūngao pākahiko lithium-ion. Ko ēnei pākahiko e whakakaha ana i ngā mea katoa mai i ngā waea atamai ki ngā waka hiko (EVs), kei reira te kobalt e tino hiahiatia ana hei whakarei ake i te kiato pūngao, te pūmau wera, me te ora huringa katoa. I tua atu i te mekameka tuku pākahiko, ko te kobalt i ahu mai i te cobaltite he mea nui rawa atu ki ngā ahumahi rererangi me te whakamaru. Ka whakamahia hei hanga i ngā superalloys tino mahi e kaha ana ki te pupuri i te pūmau hanganga i raro i ngā pāmahana tino nui e neke atu ana i te 1,000°C, nā reira he mea nui mō ngā mata kōpeketanga o ngā miihini jet me ngā kōpeketanga hau. I tua atu, ka whakamahia ōna āhuatanga autō ki te hanga i ngā aukume pūmau me ngā taputapu tapahi kaha, i te mea ka whakamahia tonu ōna pārōnaki matū hei waikano kikorangi oraora i roto i ngā uku me ngā karaihe tino pai.