<?xml version="1.0" encoding="UTF-8"?>
<article xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:mml="http://www.w3.org/1998/Math/MathML" dtd-version="1.4" article-type="research-article">
  <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-15299</article-id>
      <article-id pub-id-type="uri">https://pmi.spmi.ru/pmi/article/view/15299</article-id>
      <article-categories>
        <subj-group subj-group-type="section-heading" xml:lang="ru">
          <subject>Без раздела</subject>
        </subj-group>
        <subj-group subj-group-type="section-heading" xml:lang="en">
          <subject>Without section</subject>
        </subj-group>
      </article-categories>
      <title-group>
        <article-title xml:lang="en">Natural etching figures on topaz</article-title>
        <trans-title-group xml:lang="ru">
          <trans-title>Естественные фигуры вытравления на топазе</trans-title>
        </trans-title-group>
      </title-group>
      <contrib-group>
        <contrib contrib-type="author">
          <name name-style="eastern">
            <surname>Fedorov</surname>
            <given-names>Ye. S.</given-names>
          </name>
          <name-alternatives>
            <name name-style="eastern" xml:lang="ru">
              <surname>Федоров</surname>
              <given-names>Е. С.</given-names>
            </name>
            <name name-style="western" xml:lang="en">
              <surname>Fedorov</surname>
              <given-names>Ye. S.</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="1908-09-01">
        <day>01</day>
        <month>09</month>
        <year>1908</year>
      </pub-date>
      <pub-date date-type="collection">
        <year>1908</year>
      </pub-date>
      <volume>1</volume>
      <issue>3</issue>
      <fpage>186</fpage>
      <lpage>191</lpage>
      <history>
        <date date-type="received" iso-8601-date="1908-03-01">
          <day>01</day>
          <month>03</month>
          <year>1908</year>
        </date>
        <date date-type="accepted" iso-8601-date="1908-05-16">
          <day>16</day>
          <month>05</month>
          <year>1908</year>
        </date>
        <date date-type="rev-recd" iso-8601-date="1908-09-01">
          <day>01</day>
          <month>09</month>
          <year>1908</year>
        </date>
      </history>
      <permissions>
        <copyright-statement xml:lang="ru">© 1908 Е. С. Федоров</copyright-statement>
        <copyright-statement xml:lang="en">© 1908 Ye. S. Fedorov</copyright-statement>
        <copyright-year>1908</copyright-year>
        <copyright-holder xml:lang="ru">Е. С. Федоров</copyright-holder>
        <copyright-holder xml:lang="en">Ye. S. Fedorov</copyright-holder>
        <license license-type="open-access" xlink:href="http://creativecommons.org/licenses/by/4.0" xml:lang="ru">
          <license-p>Эта статья доступна по лицензии Creative Commons Attribution 4.0 International (CC BY 4.0)</license-p>
        </license>
        <license license-type="open-access" xlink:href="http://creativecommons.org/licenses/by/4.0" xml:lang="en">
          <license-p>This article is licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0)</license-p>
        </license>
      </permissions>
      <self-uri xlink:type="simple" xlink:href="https://pmi.spmi.ru/pmi/article/view/15299">https://pmi.spmi.ru/pmi/article/view/15299</self-uri>
      <abstract xml:lang="ru">
        <p>При производящемся ныне А. Э. Купффером коренном пересмотре и приведении в порядок минералов музея Горного Института представился случай довольно подробно ознакомиться и с упомянутыми в заглавии фигурами, развитыми иногда с большою отчетливостью на довольно большом числе экземпляров из различных месторождений этого интересного минерала, столь обильно представленного в музее.</p>
      </abstract>
      <abstract xml:lang="en">
        <p>During the fundamental revision and reorganization of the minerals in the Museum of the Mining Institute, currently being carried out by A.E. Kupffer, the opportunity arose to get acquainted in some detail with the figures mentioned in the title, which are sometimes developed with great clarity on a fairly large number of specimens from various deposits of this interesting mineral, which is so abundantly represented in the museum's collection.</p>
      </abstract>
    </article-meta>
  </front>
  <body/>
  <back>
    <ref-list/>
  </back>
</article>
