Oligoclase ka puta mā ngā tukanga whakakoioatanga matatini o ngā rewa silicate i roto i te kirinuku o Papatūānuku, ko te nuinga he mema o te raupapa whakarewa-mārō o te plagioclase feldspar. Ko tōna hanganga e whakahaeretia ana e te whakamātao o ngā magma takawaenga ki te pākūkū, pēnei i ērā e whakaputa ana i te diorite, te syenite, me te granite, i reira te wāteatanga o ngā katote konutai (Na+) me te konupūmā (Ca2+) i ngā pāmahana motuhake e whakatau ana i te hanganga whakamutunga o te kōhuke e 10% ki te 30% anorthite (CaAl2Si2O8). I te whakamātao o te magma, ka neke te taurite matū i waenga i te rewa wai me ngā tioata e hanga ana; e ai ki te Raupapa Tauhohenga a Bowen, ka tioata te plagioclase konupūmā i ngā pāmahana teitei ake, ka whai i muri ngā momo konutai ake pēnei i te oligoclase i te wa e whakarangatirahia ana te taiao ki te silica me te konutai. I ngā taiao whakapākehātanga, ka tupu te oligoclase mā te whakakoioatanga anō o ngā kōhuke o mua i raro i ngā tikanga pēhanga me te pāmahana taumata-whakarite, e tohua ana i te ahu whakapākehātanga amphibolite. Ko tēnei whakamātao pōturi, te tipu whakapākehātanga rānei, ka āhei pea te whanake i ngā rārangi whakawehenga peristerite, i reira ka wehewehe te hanganga o roto ki ngā rohe iti konutai me te konupūmā e puta ai te kanapa kōwhai-pakākā motuhake i kitea i ētahi tauira.
I roto i te hītori, ko te tautuhi me te whakaingoa o te oligoclase he mahi nui ki te whakamana i te pūtaiao kohuke hou i te rautau 19. I te tau 1826, ka kitea tuatahitia te kohuke nei e te tohunga kohuke Tiamana a August Breithaupt, i ahu mai tōna ingoa i ngā kupu Kariki oligos (iti) me klasis (whati) hei whakanui i te paku rerekē o tōna koki whati i te koki 90-tohu e kitea ana i te orthoclase. I mua i tēnei whakarōpūtanga ōkawa, he maha ngā momo oligoclase, otirā te sunstone, i whakaaro nui hei rauemi whakapaipai e ngā ahurea tawhito, tae atu ki ngā Viking nāna pea i whakamahi ētahi feldspar rite hei whakatere waka, me ngā iwi taketake o Amerika ki te Raki nāna i whakamahi te sunstone ki ngā whakapaipai. I te mutunga o te rautau 1800 me te tīmatanga o te rautau 1900, ko te rangahau i ngā āhuatanga whatu o te oligoclase me tōna tūranga i roto i te raupapa plagioclase i noho hei poutikanga mō te whakawhanaketanga o te karu pētaka toka me ngā hoahoa takitoru e whakamahia ana e ngā kaimātai whenua i ēnei rā. Ko tēnei ahu whakamua hītori mai i te mea whakapaipai ki te taputapu inenga pāmahana toka tika, e whakaatu ana i te whanaketanga whānui o te pūtaiao whenua mai i te hītori mātauranga whakaahua ki te akoranga whakatau, tātari.
Ngā momo me te tae o Oligoclase
Oligoclase Tūtahi
I te nuinga o te wā e kitea ai i roto i ngā toka granitic, dioritic rānei, ka puta mai he kirikiri āhua mārama ki te pōuritanga. Ko te kāhui tae he mā, he kore tae, he kiwikiwi, he kōwhai-mātomato kārikihina, me te whero-kiko.
Kōhatu Rā (Feldspar Aventurine)
Ko tēnei te momo e tino rapuhia ana, e whakaatu ana i te tae kikorangi kōwhai, whero, koura-parauri rānei o te tinana. Kei roto he mātauranga moroiti, rite pereti o te hematite (Fe2O3), goethite, te parahi māori rānei e whakaata ana i te marama hei whakaputa i te āhuatanga “aventurescence” me te “schiller” e tīramarama ana.
Peristerite
Kua whakaingoatia ki te kupu Kariki mō te kūkū (nā te pūhihi o ngā huruhuru o te kaki o te kūkū), he mā, he mā koma rānei te nuinga o tēnei momo. E whakaatu ana i te iriāta kikorangi, iriāta tini kara rānei, e puta mai ana nā te whakawhiti mārama i roto i ngā paparangi whakahekeheke iti rawa e kore e kitea e te karu.
Oligoclase māramarama taonga-kounga
Tioata onge, mārama-ki-te-wai, kāore he whakaurunga nui. He mea whakaanga ēnei mō ngā kaikohi, ā, ka tino kore tae, he tae kōwhai pāpaku rānei.
Ko Oligoclase he māngai mō te raupapa plagioclase feldspar, e whakaata ana i ngā āhuatanga matū me ngā āhuatanga wera e puta ai ngā kohuke i roto i te kirinuku o te whenua. Ko tōna putanga ki ngā taiao toka ahi me ngā taiao toka panoni, me tōna hanganga i waenga i ngā pito tino nui o te konutai me te konupūmā, ka waiho hei tohu nui i roto i ngā rangahau ā-papa. I tua atu i tōna uara pūtaiao, he whānui ngā āhuatanga kitea o te oligoclase, mai i ngā kirikiri mārama noa e kitea ana ki ngā momo e whakaatu ana i te taurapa, i te kōwhaiwhai rānei. I roto i te katoa, ka noho tonu he kohuke whai pānga ā-papa me te āhua o te hiahia ki ngā kowhatu whakapaipai.