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  <front>
    <journal-meta>
      <journal-id journal-id-type="issn">2411-3336</journal-id>
      <journal-id journal-id-type="eissn">2541-9404</journal-id>
      <journal-title-group>
        <journal-title xml:lang="ru">Записки Горного института</journal-title>
        <journal-title xml:lang="en">Journal of Mining Institute</journal-title>
      </journal-title-group>
      <publisher>
        <publisher-name xml:lang="ru">Санкт-Петербургский горный университет императрицы Екатерины ΙΙ</publisher-name>
        <publisher-name xml:lang="en">Empress Catherine II Saint Petersburg Mining University</publisher-name>
      </publisher>
    </journal-meta>
    <article-meta>
      <article-id custom-type="pmi" pub-id-type="custom">pmi-15384</article-id>
      <article-id pub-id-type="uri">https://pmi.spmi.ru/pmi/article/view/15384</article-id>
      <article-categories>
        <subj-group subj-group-type="section-heading" xml:lang="ru">
          <subject>Геология</subject>
        </subj-group>
        <subj-group subj-group-type="section-heading" xml:lang="en">
          <subject>Geology</subject>
        </subj-group>
      </article-categories>
      <title-group>
        <article-title xml:lang="en">Enigmatic facets of some crystals</article-title>
        <trans-title-group xml:lang="ru">
          <trans-title>Энигматические грани некоторых кристаллов</trans-title>
        </trans-title-group>
      </title-group>
      <contrib-group>
        <contrib contrib-type="author">
          <name name-style="eastern">
            <surname>Artemyev</surname>
            <given-names>D. N.</given-names>
          </name>
          <name-alternatives>
            <name name-style="eastern" xml:lang="ru">
              <surname>Артемьев</surname>
              <given-names>Д. Н.</given-names>
            </name>
            <name name-style="western" xml:lang="en">
              <surname>Artemyev</surname>
              <given-names>D. N.</given-names>
            </name>
          </name-alternatives>
          <email>pmi@spmi.ru</email>
          <xref ref-type="aff" rid="aff1"/>
        </contrib>
        <aff-alternatives id="aff1">
          <aff>
            <institution xml:lang="ru"> (Россия)</institution>
          </aff>
          <aff>
            <institution xml:lang="en"> (Russia)</institution>
          </aff>
        </aff-alternatives>
      </contrib-group>
      <pub-date pub-type="epub" iso-8601-date="1909-12-01">
        <day>01</day>
        <month>12</month>
        <year>1909</year>
      </pub-date>
      <pub-date date-type="collection">
        <year>1909</year>
      </pub-date>
      <volume>2</volume>
      <issue>4</issue>
      <fpage>275</fpage>
      <lpage>278</lpage>
      <history>
        <date date-type="received" iso-8601-date="1909-06-21">
          <day>21</day>
          <month>06</month>
          <year>1909</year>
        </date>
        <date date-type="accepted" iso-8601-date="1909-08-14">
          <day>14</day>
          <month>08</month>
          <year>1909</year>
        </date>
        <date date-type="rev-recd" iso-8601-date="1909-12-01">
          <day>01</day>
          <month>12</month>
          <year>1909</year>
        </date>
      </history>
      <permissions>
        <copyright-statement>© D. N. Artemyev</copyright-statement>
        <copyright-year>1909</copyright-year>
        <copyright-holder xml:lang="ru">Д. Н. Артемьев</copyright-holder>
        <copyright-holder xml:lang="en">D. N. Artemyev</copyright-holder>
        <license xlink:href="http://creativecommons.org/licenses/by/4.0">
          <license-p>CC BY 4.0</license-p>
        </license>
      </permissions>
      <self-uri xlink:type="simple" xlink:href="https://pmi.spmi.ru/pmi/article/view/15384">https://pmi.spmi.ru/pmi/article/view/15384</self-uri>
      <abstract xml:lang="ru">
        <p>При медленной кристаллизации кобальти - амин - хлоро - диметил - глюксимина при + 18 — 20° С, на некоторых кристаллах этого соединения появляются особые, загадочные грани. Эти грани отличаются прежде всего по своей величине, так как, обыкновенно, они больше других и образованы настолько совершенно, что при измерении можно поручиться за точность до нескольких секунд. Между тем, по своему положению они, по-видимому, не принадлежат к комплексу кристалла, так как символы их необыкновенно сложны, почти иррациональны.</p>
      </abstract>
      <abstract xml:lang="en">
        <p>With the slow crystallization of cobalti - amine - chloro - dimethyl - glucosimine at + 18-20 ° C, special, mysterious facets appear on some crystals of this compound. These faces differ primarily in their size, since they are usually larger than others and formed so perfectly that when measuring, you can guarantee accuracy of up to a few seconds. However, by their position they do not seem to belong to the crystal complex, as their symbols are extraordinarily complex, almost irrational.</p>
      </abstract>
    </article-meta>
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