Gauin, gauinite ko gauinite - tectosilicate ma'adinai tare da sulfate - bidiyo
Abubuwan:
Gauine, gauinite ko gauinite shine ma'adinan sulfate tectosilicate tare da tsarin tip Na3Ca (Si3Al3) O12 (SO4).
Sayi duwatsu na halitta a cikin kantinmu
Zai iya zama har zuwa 5 wt. K2O, da H2O da Cl. Feldspar ne kuma memba na ƙungiyar sodalite. An fara bayyana dutsen a cikin 1807 bisa samfuran da aka samo a cikin lava Vesuvian a Monte Somma, Italiya, kuma Brunn-Neergard ya sanya masa suna a cikin 1807 bayan masanin kirista na Faransa René Just Gahuy (1743-1822). Wani lokaci ana amfani da shi azaman gem.
bayyanuwa
Yana yin lu'ulu'u a cikin tsarin isometric, yana ƙirƙirar lu'ulu'u na dodecahedral ko pseudooctahedral har zuwa 3 cm a diamita; Har ila yau yana faruwa a matsayin hatsi mai zagaye. Lu'ulu'u a bayyane suke zuwa translucent, tare da vitreous zuwa haske mai. Launi yawanci shuɗi ne mai haske, amma kuma yana iya zama fari, launin toka, rawaya, kore, da ruwan hoda. A cikin ɓangaren bakin ciki, lu'ulu'u ba su da launi ko launin shuɗi, kuma ɗigon yana da launin shuɗi zuwa fari.
Kayayyaki
Dutsen shine isotropic. Ma'adinan isotropic na gaskiya ba su da birefringence, amma dutsen yana da rauni a gaban inclusions a ciki. Ma'anar refractive shine 1.50. Kodayake yana da ƙananan ƙananan, kamar gilashin taga na yau da kullum, shine mafi girman darajar ma'adanai daga ƙungiyar sodalite. Zai iya nuna ja-orange mai launin ruwan lemo don yin haske a ƙarƙashin hasken ultraviolet mai tsayi mai tsayi.
Ƙunƙarar wuya ba ta dace ba, kuma tagwaye suna hulɗa, shiga da polysynthetic. Karyewar ba ta da ka'ida ga nau'in harsashi, ma'adinan yana raguwa kuma yana da taurin 5 1/2 zuwa 6, kusan kamar wuya kamar feldspar. Duk membobin ƙungiyar sodalite suna da ƙarancin ƙarancin ƙima, ƙasa da na quartz; hauyne shine mafi girman duka, amma yana da takamaiman nauyi na 2.44-2.50 kawai.
Idan an sanya dutse a kan gilashin gilashi kuma an bi da shi tare da nitric acid HNO3, to, an ba da izinin maganin a hankali a hankali, an kafa allurar gypsum monoclinic. Wannan ya bambanta hauine daga sodalite, wanda a ƙarƙashin yanayi ɗaya yana samar da lu'ulu'u na chlorite. Ma'adinan ba rediyoaktif bane.
Misali daga Mogok, Burma
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