Ko te Anorthoclase he mema konutai-nuinga o te raupapa whakarenga totoka alkali feldspar, ka whakarōpūtia hei anga kirikiri (tectosilicate) me te tātai whānui (Na,K)AlSi₃O₈. Ka noho ia ki te awhe hanganga waenga i waenga i te albite (NaAlSi₃O₈) me te orthoclase (KAlSi₃O₈), ko te tikanga kei roto i te 60–90 mol% wāhanga albite me te 10–40 mol% wāhanga orthoclase. I runga i te hanganga tioata, ko te anorthoclase nō te pūnaha triclinic; heoi, nā tōna hanganga i ngā pāmahana teitei, e whakaatu ana i te hangarite pseudo-monoclinic i roto i ngā tauira ringa me te tātaritanga whatu. Ko te kohuke e mōhiotia ana e tōna kanapa karaihe, e rua ngā wehenga pai, me te pakeke Mohs o 6 ki te 6.5. He maha tonu te kore tae, te mā, te tae mārō rānei (hei tauira, hina kōmā, kōwhai, kākāriki rānei), ahakoa ko ngā tauira onge e whakaatu ana i ngā āhuatanga whatu whakamīharo pēnei i te schiller, te opalescence ngoikore rānei, e tino whai take ana ki ngā kaikohi.
Ka puta te anorthoclase i raro i ngā āhuatanga pāmahana-tiketike i roto i ngā taiao puia pākākā, e tioata ana mai i ngā magma nui-konutai, nui-pāhare, kore-whākī kirikā ki te whākī-whākī te kirikā. E hono āhua ana ki ngā toka puia pērā i te trachyte, te phonolite, me ngā huinga pākākā e pā ana, tae atu ki te rhomb porphyry. Ko te pūmau o te anorthoclase i te mata o te whenua, tata rānei, e tino whakawhirinaki ana ki te whakamātao tere (quenching) o te magma kaihau. I raro i ngā āhuatanga whakamātao pōturi, ka kore e pūmau te otinga mārō tiketike, ā, ka puta te exsolution, e whakaputa ana i ngā tipuranga o te albite me te pāhare kōhatu, e puta ai ngā pūtauranga perthitic, cryptoperthitic rānei. Ko tēnei tukanga e whakaatu ana i te whakataurite-ā-waiariki anō o ngā wāhanga feldspar i ngā pāmahana iti. He iti noa iho ngā tioata tino whanake, engari kua kitea i ētahi wāhi rongonui, tae atu ki Maunga Erebus i Antarctica, i reira ka puta pea hei phenocrysts i roto i te mahi puia, me ngā rohe puia pākākā o Maunga Kilimanjaro (Tanzania) me te Moutere o Pantelleria (Itāria).
I whakaahuatia te kohuke i te tau 1885 e te tohunga petrography Tiamana a Karl Heinrich Ferdinand Rosenbusch, he pioniea i roto i te petrography moroiti. Ko tōna ingoa i ahu mai i ngā kupu Kariki an- (“kāore”), orthos (“tika”), me klasis (“whakawehe”), e tohu ana i te pātapa o ōna koki whakawehe, he rerekē i te whakawehe tika-koki tata o te orthoclase monoclinic. Putanga noa i te whanaketanga o te petrology ahi i te rautau rua tekau, kua mōhiotia te anorthoclase hei tohu petrogenetic nui. Ko ōna āhuatanga whakahiato me te hanganga he tairongo ki te mahana, te pēhanga, me te tere whakamatao, nā reira he kohuke pūmanawa mō te whakamārama i te kunenga magmatic. Inā tōna aroaro i ngā kohatu puia, ka taea te whakarato māramatanga ki ngā tikanga whakawhanake tio, ki te hautūtanga pikitanga magma, me te hītori waiariki o ngā pūnaha magmatic kawakore.
Ngā whakamahinga o Anorthoclase
Ahakoa kāore e whakamahia whānuitia te anorthoclase i runga i te tauine ahumahi ki te whakataurite ki ngā pākeho maha atu, he mea nui tonu tōna hiranga motuhake i roto i ngā rangahau pūtaiao me ngā tono kohatu whakapaipai motuhake. I roto i te petrology toka korohū, ko te anorthoclase tētahi tohu kohuke nui hei whakatau i ngā āhuatanga magmatic, inarā i roto i ngā pūnaha puia kawakawa. Ka taea te whakamahi tōna hanganga me tōna āhua hanganga hei whakawhāiti i ngā pāmahana whakatio, ngā hītori whakamatao, me ngā ara whanaketanga magma, hei taputapu uara i roto i te geothermometry me ngā akoranga taurite wāhanga. I tua atu, ko te noho mai, te kore rānei o ngā pūkowha whakarewanga i roto i te anorthoclase e whakaatu ana i ngā reiti whakamatao i muri i te pahūtanga me ngā tukanga whakaōrite anō i raro i te mata.
I roto i te mahi tirotiro kohatu me te kohi kohuke, e kiia ana te anorthoclase he kohuke onge, he mea motuhake ma te kai-kohi, kaua ki te kohatu whakapaipai rongonui. Ko nga tioata maramara, he pai te hanga, ka taea te whakapai hei mea kohi, ahakoa na te ngawari me te wehenga tino pai e whakaiti ai to ratou kaha ki roto i nga whakapaipai. Ko nga momo onge e whakaatu ana i nga awenga whatu penei i te schiller, i te adularescence ngawari ranei, e hokohoko ana i raro i nga ingoa tauhokohoko penei i te “anorthoclase moonstone,” ahakoa ka whakamahia tenei kupu i roto i nga horopaki ngaio kia kore ai e rangirua ki te orthoclase pono, ki te adularia moonstone ranei. I tua atu, na te puta mai i roto i nga taiao whenua motuhake, e rapuhia ana nga tauira kounga teitei e nga whare taonga me nga kai-kohi matatau hei tauira mo te whakarewatanga o te kohuke alkali pārūnga wera.