Kassiterit (Yun. Kassiteros \u2014 qalay), qalaytosh \u2014oksidlar sin- figa mansub mineral. Kimyoviy for- mulasi SnO2. Tarkibida Fe2O3 (13% gacha), Ta2o3, Nb2O3 (9% gacha) va h.k. qo’shimchalari bor. Qalayning mikdori 78,6%. Tetragonal singoniyali. Dipi- ramidal, ustunsimon, ninasimon kri- stallar va donador agregatlar holida uchraydi. Rangi qo’ng’irdan qoragacha, ba’zan sariq, qizg’ish. Olmossimon yaltiroq. Qattiqligi 6-7. Zichligi 6-7 g\/sm3. Ko’pincha qo’ng’ir, ba’zan jigar- rang, olmosdek yaltiraydi. Gidroter- mal, greyzen, pegmatit va sochma konla- ri ma’lum. K. konlari, odatda, nordon intruziv tog’jinslari (granit) b-n bog’liq. Hosil bo’lishi magmatikdan gi- pergengacha. K.ning eng istiqbolli sa- noatbop to’plamlari gidrotermal kvars- kassiterit va sulfid kassiteritli ertomirlarda uchraydi. K. O’zbekistonda 20-a.ning 30-y.larida topilgan, hoz. bir necha turi ma’lum. K. konlari Oltintog’, Turkiston, Qoratepa, Zirabuloq — Ziyovud- din, Sultonuvays tog’i, Hisor tog’larida bor. Xorijda K. konlari RF (Primore), Ukraina, Malayziya, Tailand, Indoneziya, Xitoy, Boliviya, Nigeriya va b. joylarda aniqlangan. K. \u2014 qalayning asosiy ru- dasi. Ayni vaqtda kontsentratdan Nb, ta kabi noyob metallar ham ajratib olina- Di. Oltintog’K. rentgenogrammasi dunyo- da qabul qilingan aniqlagich (Mixeev, 1957)da etalon sifatida qabul qilingan.<\/p>\n","protected":false},"excerpt":{"rendered":"
Kassiterit (Yun. Kassiteros \u2014 qalay), qalaytosh \u2014oksidlar sin- figa mansub mineral. Kimyoviy for- mulasi SnO2. Tarkibida Fe2O3 (13% gacha), Ta2o3, Nb2O3 (9% gacha) va h.k. qo’shimchalari bor. Qalayning mikdori 78,6%. … Read More<\/a><\/p>\n","protected":false},"author":1,"featured_media":99837,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[201],"tags":[],"class_list":["post-128297","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-k-harfi","entry"],"translation":{"provider":"WPGlobus","version":"3.0.2","language":"ru","enabled_languages":["uz","kr","ru"],"languages":{"uz":{"title":true,"content":true,"excerpt":false},"kr":{"title":false,"content":false,"excerpt":false},"ru":{"title":false,"content":false,"excerpt":false}}},"_links":{"self":[{"href":"https:\/\/milliycha.uz\/ru\/wp-json\/wp\/v2\/posts\/128297","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/milliycha.uz\/ru\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/milliycha.uz\/ru\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/milliycha.uz\/ru\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/milliycha.uz\/ru\/wp-json\/wp\/v2\/comments?post=128297"}],"version-history":[{"count":1,"href":"https:\/\/milliycha.uz\/ru\/wp-json\/wp\/v2\/posts\/128297\/revisions"}],"predecessor-version":[{"id":128305,"href":"https:\/\/milliycha.uz\/ru\/wp-json\/wp\/v2\/posts\/128297\/revisions\/128305"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/milliycha.uz\/ru\/wp-json\/wp\/v2\/media\/99837"}],"wp:attachment":[{"href":"https:\/\/milliycha.uz\/ru\/wp-json\/wp\/v2\/media?parent=128297"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/milliycha.uz\/ru\/wp-json\/wp\/v2\/categories?post=128297"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/milliycha.uz\/ru\/wp-json\/wp\/v2\/tags?post=128297"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}