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<article article-type="research-article" dtd-version="1.3" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">gscience</journal-id><journal-title-group><journal-title xml:lang="en">Mining Science and Technology (Russia)</journal-title><trans-title-group xml:lang="ru"><trans-title>Горные науки и технологии</trans-title></trans-title-group></journal-title-group><issn pub-type="epub">2500-0632</issn><publisher><publisher-name>The National University of Science and Technology MISiIS (NUST MISIS)</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.17073/2500-0632-2023-01-75</article-id><article-id custom-type="elpub" pub-id-type="custom">gscience-513</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>MINING ROCK PROPERTIES. ROCK MECHANICS AND GEOPHYSICS</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>СВОЙСТВА ГОРНЫХ ПОРОД. ГЕОМЕХАНИКА И ГЕОФИЗИКА</subject></subj-group></article-categories><title-group><article-title>Dolomite type nephrite processing wastes and their application</article-title><trans-title-group xml:lang="ru"><trans-title>Отходы переработки аподоломитового нефрита и направление их использования</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-2266-0942</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Кислов</surname><given-names>Е. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Kislov</surname><given-names>E. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Евгений Владимирович Кислов – кандидат геолого-минералогических наук, доцент, ведущий научный сотрудник</p><p>г. Улан-Удэ</p></bio><bio xml:lang="en"><p>Evgeniy V. Kislov – Cand. Sci. (Geol. and Min.), Associate Professor, Leading Researcher</p><p>Ulan-Ude</p></bio><email xlink:type="simple">evg-kislov@ya.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-1423-410X</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Худякова</surname><given-names>Л. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Khudyakova</surname><given-names>L. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Людмила Ивановна Худякова – доктор технических наук, старший научный сотрудник</p><p>г. Улан-Удэ</p></bio><bio xml:lang="en"><p>Liudmila I. Khudyakova – Dr. Sci. (Eng.), Leading Researcher</p><p>Ulan-Ude</p></bio><email xlink:type="simple">lkhud@binm.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-8082-6536</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Николаев</surname><given-names>А. Г.</given-names></name><name name-style="western" xml:lang="en"><surname>Nikolaev</surname><given-names>A. G.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Анатолий Германович Николаев – кандидат геолого-минералогических наук, доцент, Институт геологии и нефтегазовых технологий</p><p>ResearcherID F-7024-2017</p><p>г. Казань</p></bio><bio xml:lang="en"><p>Anatoly G. Nikolaev – Cand. Sci. (Geol. and Min.), Associate Professor</p><p>ResearcherID F-7024-2017</p><p>Kazan</p></bio><xref ref-type="aff" rid="aff-3"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru">Геологический институт им. Н.Л. Добрецова Сибирского отделения Российской академии наук (ГИН СО РАН)<country>Россия</country></aff><aff xml:lang="en">Dobretsov Geological Institute of Siberian Branch of the Russian Academy of Sciences (GIN SB RAS)<country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru">Байкальский институт природопользования Сибирского отделения Российской академии наук (БИП СО РАН)<country>Россия</country></aff><aff xml:lang="en">Baikal Institute of Nature Management of Siberian Branch of the Russian Academy of Sciences (BIP SB RAS)<country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru">Казанский (Приволжский) федеральный университет (КФУ)<country>Россия</country></aff><aff xml:lang="en">Kazan (Privolzhsky) Federal University (KFU)<country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2023</year></pub-date><pub-date pub-type="epub"><day>24</day><month>07</month><year>2023</year></pub-date><volume>8</volume><issue>3</issue><fpage>195</fpage><lpage>206</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Kislov E.V., Khudyakova L.I., Nikolaev A.G., 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">Кислов Е.В., Худякова Л.И., Николаев А.Г.</copyright-holder><copyright-holder xml:lang="en">Kislov E.V., Khudyakova L.I., Nikolaev A.G.</copyright-holder><license license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>This work is licensed under a Creative Commons Attribution 4.0 License.</license-p></license></permissions><self-uri xlink:href="https://mst.misis.ru/jour/article/view/513">https://mst.misis.ru/jour/article/view/513</self-uri><abstract><p>The demand for ornamental stone material has led to an increase in the amount of rock mass being processed. However, the production of lapidary works and jewelry result in a significant amount of waste. This study aims to investigate the material composition and physical and mechanical properties of the solid wastes generated during the processing of dolomite type nephrite in the Vitim region. The accumulation of such waste leads to increased costs of transportation, storage, security, and negative environmental impact. The majority of dolomite type nephrite deposits are located in the Northwest, Northeast, and South of China, in South Korea, Australia, Italy, and Poland, with a large deposit in the Vitim region of Russia. In this study, the waste from the Kavoktinsky deposit, the most productive in Russian, was used. A visual and petrographic examination of nephrite, skarn and amphibolite which are components of the solid waste, was conducted. The macro- and microchemical composition of nephrite of different colors was studied, and X-ray phase analysis was performed. The decorative properties of the waste were determined. A radiation and hygienic certificate was obtained. The waste has a crushability grade of 1200, abrasion grade of I1, and frost resistance of F400. The study has shown that the waste does not contain grains of incompetent rocks, clay, dust, and clay particles. The solid waste form the Vitim nephrite processing is of high quality and meets the requirements of GOST 8267-93, except for an increased content of flagstone (flattened) and large size fragments. It can be used for the production of ordinary, decorative, and mosaic concrete, decorative plates, interior decoration of premises, bathrooms, and saunas, and the manufacture of souvenir products. However, further research is needed to investigate the application of the waste as a raw material for stone casting and a slow-release fertilizer. The utilization of this waste not only solves the problem of waste disposal but also improves economic performance of mineral extraction.</p></abstract><trans-abstract xml:lang="ru"><p>Камнесамоцветное сырье пользуется повышенным спросом, что приводит к возрастающему объему перерабатываемой горной массы. Обогащение исходного сырья, изготовление камнерезных и ювелирных изделий сопровождаются образованием большого количества отходов. Представленное исследование направлено на изучение вещественного состава и физико-механических свойств твердых отходов переработки аподоломитового нефрита Витимского региона. Образование отходов в значительном количестве приводит к затратам на перевозку, хранение и охрану, ухудшает экологическую обстановку. Месторождения аподоломитового нефрита находятся в Витимском регионе России. Наибольшее их количество сосредоточено на Северо-Западе, Северо-Востоке и Юге Китая, в меньшей мере – в Южной Корее, Австралии, Италии и Польше. В работе использованы отходы переработки наиболее продуктивного российского месторождения аподоломитового нефрита – Кавоктинского. Проведено визуальное и петрографическое изучение нефрита, скарна и амфиболита твердых отходов. Изучен макро- и микрохимический состав нефрита различного цвета, выполнен рентгенофазовый анализ. Определены декоративные свойства. Получен радиационно-гигиенический сертификат. Отходы имеют марки по дробимости 1200, по истираемости – И1, по морозостойкости – F400. Проведенные исследования показали, что в их составе не содержатся зерна слабых пород, а также глина, пылевидные и глинистые частицы. Твердые отходы переработки нефрита Витимского региона имеют высокое качество, соответствуют требованиям ГОСТ 8267–93, за исключением повышенного содержания фрагментов лещадных (уплощенных) и повышенного размера. Они могут использоваться в производстве обычного, декоративного и мозаичного бетонов, декоративных плит, внутренней отделки помещений, бань и саун, для изготовления сувенирной продукции. Использование в качестве сырья для каменного литья и пролонгированного удобрения требует дополнительного рассмотрения. Все это позволит не только решить проблему утилизации отходов, но и улучшить экономические показатели добычи минерального сырья.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>нефрит</kwd><kwd>обогащение</kwd><kwd>отходы переработки</kwd><kwd>Витимский регион</kwd><kwd>минеральный состав</kwd><kwd>химический состав</kwd><kwd>декоративные свойства</kwd><kwd>физико-механические свойства</kwd><kwd>утилизация</kwd></kwd-group><kwd-group xml:lang="en"><kwd>nephrite</kwd><kwd>processing</kwd><kwd>processing waste</kwd><kwd>the Vitim region</kwd><kwd>mineral composition</kwd><kwd>chemical composition</kwd><kwd>decorative properties</kwd><kwd>physical and mechanical properties</kwd><kwd>utilization</kwd></kwd-group><funding-group xml:lang="ru"><funding-statement>Замечания рецензента редколлегии позволили значительно улучшить рукопись статьи. Авторы признательны ООО «Ориентал Вэй» за предоставление каменного материала, ЦКП «Геоспектр» ГИН СО РАН, Улан-Удэ, и «Геоаналитик» ИГГ УрО РАН, Екатеринбург, за проведенные анализы. Исследование выполнено за счет гранта Российского научного фонда № 22-27-20003, https://rscf.ru/project/22-27-20003.</funding-statement></funding-group><funding-group xml:lang="en"><funding-statement>The manuscript has been greatly improved thanks to remarks made by the reviewer of the editorial board. The authors would like to express their gratitude to Oriental Way Ltd. for providing stone material, to the Geospectr Center (TsKP) of the Institute of Geology of SB RAS, Ulan-Ude, and to the Geoanalitik of the Institute of Geology and Geochemistry, UB RAS, Yekaterinburg, for the analyses performed. 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