Pezzottaite Maka Maka Pōki
Nā mea:
ʻO ka pezzottaite maka o ka pōpoki, kūʻai ʻia ma ke ʻano he beryl ʻulaʻula a ʻulaʻula paha.
E kūʻai i nā pōhaku makamae ma kā mākou hale kūʻai pōhaku
maka popoki ʻulaʻula
He ʻano mineral hou kēia. Ua ʻike mua ʻia au e ka International Mineralogical Society i Kepakemapa 2003. ʻO Pezzottaite ka cesium like me ka beryllium. Cesium silicate, a me beryllium, lithium a me ka alumini. Me ke kimeka Cs(Be2Li)Al2Si6O18.
Ua kapa ʻia ʻo ia ma hope o ka mea kālaihonua Italia a me ka mineralogist Federico Pezzotta. Ua manaʻo mua ʻia ʻo Pezzottaite he beryl ʻulaʻula. A i ʻole he ʻano beryllium hou: cesium beryllium. Eia naʻe, ʻaʻole like me ka beryllium maoli, loaʻa i ka pezzottaite ka lithium a me ka crystallizes. Aia i loko o ka ʻōnaehana kristal trigonal, ʻaʻole he hexagonal.
ʻO ka hoʻolālā kala e pili ana i nā aka o ka ʻulaʻula ʻulaʻula, ka ʻulaʻula alani a me ka ʻulaʻula. Hoʻohana ʻia ia mai nā quarries merolithic i nā waihona pegmatite granite o ka ʻāina ʻo Fianarantsoa ma ka hema o Madagascar. He liʻiliʻi nā kristal pezzottaite, ʻaʻole i ʻoi aku ka nui ma mua o 7 cm/2.8 iniha, ma ko lākou nui ākea, a he ʻano papa a like paha.
A ʻo kekahi, ʻo ka hapa nui o lākou e pili pū ana me nā paipu ulu a me nā hulu wai. Ma kahi o 10 pākēneka o nā mea ʻala i lilo i ʻōlelo waha ma hope o ka poli. ʻO ka hapa nui o nā pōhaku ʻokiʻoki pezzottaite ʻoi aku ka liʻiliʻi ma mua o hoʻokahi carat (200 mg) a ʻaʻole i ʻoi aku ma mua o ʻelua carats/400 mg.
ʻIke ʻia o ka maka o ka pōpoki pezzottaite
Koe no ka paakiki 8 ma ka unahi Mohs. Nā waiwai kino a me ka optical o ka pezottaite, i.e. 'umekaumaha kiko'ī 3.10, kuhikuhipuʻuone refractive 1.601-1.620. ʻOi aku ka kiʻekiʻe o ka birefringence o 0.008 a i 0.011 (ʻaʻohe palena ʻole) ma mua o ka beryllium maʻamau. ʻO ka pezzottiat he palupalu, me kahi pūpū haʻihaʻi i kahi ʻano like ʻole, me nā ʻili keʻokeʻo.
E like me ka beryl, loaʻa iā ia kahi ʻāpana kūpono ʻole a māmā paha ma ke kumu. He haʻahaʻa ka Pleochroism, ʻulaʻula-ʻalani a i ʻole mauve a ʻulaʻula-violet. ʻO ka spectrum absorption o ka pezzottaite, ke nānā ʻia me kahi spectroscope nānā pololei hiki ke lawe ʻia, uhi i ka pahu me ka lōʻihi o ka nalu o 485-500 nm. Hōʻike kekahi mau laʻana i nā laina nāwaliwali hou ma 465 a me 477 nm a me kahi kaula nāwaliwali ma 550–580 nm.
ʻO ka hapa nui, inā ʻaʻole ʻo nā mea a pau, ua pau nā waihona o Madagascar. Ua loaʻa ka Pezzottaite ma ka liʻiliʻi loa ma kahi pūnaewele ʻē aʻe, ʻo Afghanistan: ua manaʻo mua ʻia kēia mea waiwai i ka cesium morganite/beryllium ʻalani.
E like me ka morganite a me ka bixbite, manaʻoʻiʻo ʻia ka pezzottaite i kona kala i nā kikowaena kala i hoʻoulu ʻia e ka radiation, me ka manganese trivalent. E lilo ana ka Pezzottaite i ka waihoʻoluʻu ke hoʻomehana ʻia i 450°C no ʻelua hola. Akā hiki ke hoʻihoʻi ʻia ke kala me ka hoʻohana ʻana i nā kukuna gamma.
ʻO Raspberry-beryllium ka hopena cat-eye
Ma ka gemology, ke kamaʻilio, ke kamaʻilio a i ʻole ka hopena maka o ka pōpoki, he hopena noʻonoʻo optical kēia i ʻike ʻia ma kekahi mau pōhaku. Loaʻa mai ka ʻōlelo Farani "oeil de chat", ʻo ia hoʻi "ka maka o ka pōpoki", hiki ke kamaʻilio ma muli o ke ʻano fibrous o ka mea, e like me ka tourmaline unahi pōpoki, a i ʻole ma muli o nā fibrous inclusions a i ʻole nā lua i loko o ka pōhaku, e like me ka chrysoberyl.
ʻO nā waihona e hoʻomaka ai ke kamaʻilio ʻana ʻo nā nila. ʻAʻohe paipu a i ʻole nā kaula i hoʻāʻo ʻia. Noho pololei nā nila i ka hopena o ka maka o ka pōpoki. Hoʻokahi wale nō o nā koʻi orthorhombic ʻekolu o ke aniani chrysoberyl ma muli o ke kau ʻana i kēlā ʻaoʻao.
Ua like ke ano me ka olinolino o ka wili silika. ʻO ke kāʻei ʻālohilohi o ke kukui i ʻike ʻia e kū mau i ke kuhikuhi o nā fibers. I mea e hōʻike maikaʻi ai ka pōhaku i kēia hopena, pono ia ma ke ʻano o ka cabochon.
He poepoe me ke kumu palahalaha, aole i okiia, me na pulupulu a i ole na hale fibrous e like me ke kumu o ka pohaku i pau. Hōʻike nā hōʻailona hoʻopau maikaʻi i kahi ʻoi ʻoi. He laina kukui e hele ana ma ka pohaku i kona kaapuni ana.
Hōʻike nā pōhaku Chatoyant haʻahaʻa i ka hopena striated maʻamau o nā ʻano quartz maka o ka pōpoki. Hōʻike maikaʻi ʻole nā pohaku alo i ka hopena.
ʻO ka pezzottaite maka o ka popoki mai Madagascar
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