Ko te Kerewheraiti he momo āhuatanga motuhake o te Arapiti, he mema o te rōpū parakiiokirāihe. Kāore i rite ki ngā tioata porotaka o te Arapiti, ko te Kerewheraiti e whakaaturia ana e tōna āhua tipu papatahi, āwhāwhā rānei. He hanga kikokore, he papaneke, he tioata raiona rānei, ka whakarōpū tahi kia puta ai ngā kāhui pūrerehua, whitiāhua rānei. Ahakoa e kitea whānuitia ana i te āhua mā pera me te peara, karekau he tae rānei, i ētahi wā ka puta mai he tae kahurangi kōmāmā, he kākāriki kōmāmā rānei. Nā tōna hanga āhuru mīharo me tōna repa kanapa, e tino whai huatia ana e ngā kaikohi kōhatu, ā, he maha ngā wā ka noho hei papa ātaahua mō ngā kōhatu utu nui pērā i te tūramarini me te awamārina.
Ko te hanganga o te cleavelandite ka puta i roto i ngā pegmatite tāhua i ngā wāhanga whakamutunga, e whai wai ana o te whakamātao o te magma. Ka whakapakaritia e te tikanga mā te tukanga waiariki e pāhekoheko ai ngā wai nā-tāpiri ki ngā kohuke kua hanga i mua. I te nuinga o ngā wā, ka puta te cleavelandite mā te tukanga whakakapinga, e whakakapi ai i ngā feldspar pāhare kōnuku o mua. Nā te mea ka tupu i roto i ēnei pūkeu whakamutunga e whakakikī ai ngā huānga onge, he maha ngā wā e hono ana ki ngā kohuke e whai lithium ana me ngā kohatu utuā onge. Ko te noho mai o ēnei tioata pūrāwai he tohu ā-papa he pai te whakahāwhe o te pegmatite, ā, e whai rawa pea i ngā momo kohuke onge.
Ko te hītori o te cleavelandite e hono tata ana ki te whanaketanga o te pūtaiao kōhatu hei pūtaiao ōkawa i Amerika ki te Raki. I tapaina te momo i te tau 1823 e Henry J. Brooke hei whakanui i a Parker Cleaveland, he ahorangi i te Kāreti o Bowdoin e kiia nei ko te matua o te pūtaiao kōhatu o Amerika. Nā Cleaveland i tuhi te pukapuka ako whānui tuatahi o Amerika mō te kaupapa i te tau 1816, i āwhina ki te whakataurite i te rangahau o ngā kōhatu i te Hononga o Amerika. Puta noa i te hītori o te kēri, he tohu nui te cleavelandite mā ngā kairapu; nā te mea ka hanga i te taiao kotahi me ngā kiripiri uara nui, ko te kitenga i tētahi uaua cleavelandite i te nuinga o te wā ka tohu kei te tata tētahi pūkoro nui o ngā kōhatu utu nui.
Te Hanganga Tioata o Cleavelandite
Ko te hanganga karaihe o te cleavelandite he whakaaturanga motuhake o te pūnaha karaihe triclinic, koinei te pūnaha karaihe iti rawa te taurite i roto i ngā pūnaha karaihe e whitu. He momo rerekē o te albite, he ōrite te tātai matū o te cleavelandite, arā, ko te NaAlSi₃O₈, ā, ko tōna anga taketake he mea hanga i runga i te kupenga ahu-toru o ngā tetrahedra silicate me aluminate. I roto i tēnei hanganga, ko ia ngota hāora e tiritiri ana i waenga i ngā tetrahedra e rua, ka waiho he whakaritenga tectosilicate pakari. Ko ngā katote konutai e noho ana i roto i ngā wāhi nui waenga o tēnei anga, hei whakariterite i te utunga hiko mō te whakakapinga o te konumohe mō te silicon i ngā tūnga tetrahedral. Ko te mea e wehewehe ana i te cleavelandite mai i te albite tikanga, ko tōna āhua paparua tino rahi, he hua tika tēnei nā te tipu manakore i runga i ngā tuaka karaihe motuhake. Ahakoa ko ngā tioata albite tikanga e tipu ana ki ngā āhua rite-whārahi, ki ngā āhua poraka rānei, ka tipu te cleavelandite hei papa angiangi, hei kapa roroa rānei. Ka puta tēnei nā te mea ko te tere o te tipu tioata e tere whakanuia ana i te taha o te tuaka-b me te tuaka-c, inā hoki ki te tuaka-a. Ko tēnei whanaketanga manakore ka puta te āhua kapa-rite e tautohu ana i te momo rerekē. Ko ēnei kapa e kitea whānuitia ana i roto i ngā whakahiato haere-ā-riki uaua e rite ana ki ngā puapua o te putiputi.
Ko te whakaritenga o roto o te cleavelandite e whakatauhia ana hoki e ana ture takirua, e kitea whānuitia ana i roto i te whānau parakīrae plagioclase. Ko te mea e tino kitea ana ko te ture takirua albite, e whakaatahia ai te hanganga kiripiri ki te mata (010). I roto i te cleavelandite, he maha tonu te takirua polysynthetic, ā, ka puta i runga i te tauine moroiti, ka whai wāhi ki te koromōkō pera me te āhua pīataata e kitea ana i te mata o ngā mata. Nā te mea ka tipu ēnei kiripiri i ngā taiao pegmatitite ā-mutunga, i reira e whāiti ana te wāhi, ka urutau te hanganga ki ōna taiao, ka puta ko ngā mata kōpīpī, kopiko rānei e tino rapuhia ana e ngā kaikohi kōhatu. Ko ngā āhuatanga tinana o te hanganga cleavelandite ko te pakeke o te Mohs 6 ki te 6.5, me te wehenga tino pai ki ngā aronga e rua, inarā i ngā mata {001} me {010}. Ko tēnei wehenga he hua tika nō te kaha o te hononga i roto i te anga tectosilicate. I roto i te cleavelandite, ka mārama ake tēnei wehenga i te mea he kikokore ngā mata, nā te mea māmā noa te wehewehe, te whakapākete rānei o te kōhatu ki ōna mata papatahi. Nā tēnei ngāungāu o te hanganga, me te nui o te mata i roto i ngā tautau ā-pirawira, e tika ana hei matua whakahaere mo ētahi atu kōhatu ki te ū atu i ngā wāhanga hydrothermal whakamutunga o te huringa ora o te pegmatite’s.
He whakapapa, he kohuke takitoru a te cleavelandite nō te akomanga whai-iraira rua kua whakaritea. He mārama ki te āhua mārama, he kanapa rerekē mai i te kanapa karaihe (ki te karaihe) ki te kanapa peara, inarā ki ngā mata kowhatu. Ahakoa he kore tae, he mā rānei te albite parakore, ka puta te cleavelandite i ngā āhua kikorangi-mā, kākāriki kōmā, he hina māmā rānei nā te paru paku, te marara mārama rānei i roto i tōna hanganga paparanga. Ko tōna taupū whakaataata ka taka ki waenga i te 1.525 ki te 1.536. Ko tētahi o ōna āhuatanga whatu tino mōhiotia ko tōna mahanga tōpū tini, ka kitea i ētahi wā hei pātapa mārō, whakarea ki ngā mata tioata. I raro i te rama tūāuri, ka whakaatu ētahi tauira i te kāpura horotea, ka puta hei āhua kōmā o te mā, te māwhero rānei.
Ngā whakamahinga o Cleavelandite
Ko ngā whakamahinga o te cleavelandite ka tīmata i te rangahau pūtaiao ki ngā whakamahinga ātaahua me te wairua, i ārahi e tōna āhua tio me tōna tūranga hei kaihautū kōhatu mō ngā kohatu utu nui.I roto i te ao o te rangahau pūtaiao me te mātai kōhatu, ka mahi a cleavelandite hei taputapu tātaritanga nui mō ngā kaimātai whenua. Ko tōna noho i roto i ngā pegmatite pōhatu hei tohu pono mō te wehewehenga whenua mātātoa. Nā te mea ka puta i ngā wāhanga hydrothermal whakamutunga, ka whakamahia e ngā kairangahau ki te mahere i te whanaketanga o ngā pūhe kī tonu i te kōhatu, me te tautuhi i ngā panoni matū e puta ana i te whakamataotanga o ngā rūma magma.
Mō te ahumahi kohatu me te kohuke, ko te whakamahinga tino nui o te cleavelandite he tīwata uara nui mā ngā kaikohi. Ka whakarato i tētahi papa āhuahanga tino ātaahua mō ngā tioata tae ake pēnei i te tourmaline, te beryl, me te spodumene. Ko ēnei huinga ātaahua e tino rapuhia ana mō ngā whakaaturanga whare taonga me ngā kohinga tūmataiti nā te mea ko ngā rau mā e whakatairite ana o te cleavelandite e whakamārama nui ana i ngā tae oraora o ngā kōhatu taimana e hono ana.
I tua atu i tōna uara ātaahua, ka whakamahia te cleavelandite i roto i ngā mahi wairua. Ka whakamahia e ngā tohunga hei taputapu mō te panoni whaiaro me te arotahi, e whakapono ana ko tōna hanga mata hei āwhina i te whakatere i ngā panoni uaua o te ora me ngā whakawhitinga kare ā-roto. Ka whakamahia tonutia i roto i ngā whakatakotoranga whakaaro hei poipoi i te whakawhitiwhiti kōrero mārama, hei whakarato hoki i te tikanga tohu o te pūmautanga i ngā wā o te panoni umanga, whaiaro rānei.