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<p>The new mineral kenoargentotetrahedrite-(Zn), [Ag<span class="inline-formula">₆</span>]<span class="inline-formula">⁴⁺</span>(Cu<span class="inline-formula">₄</span>Zn<span class="inline-formula">₂)</span>Sb<span class="inline-formula">₄</span>S<span class="inline-formula">₁₂□</span>, was discovered at the Yindongpo Au deposit, Henan Province, China. It occurs as black metallic anhedral grains or equant crystals up to 40 <span class="inline-formula">µ</span>m in size. It is opaque in transmitted light and shows a greenish-grey colour in reflected light. Electron microprobe analysis for the studied material gave the empirical formula (on the basis of total cations being equal to 16 atoms per formula unit, apfu): <span class="inline-formula">^<i>M</i>(2)</span>(Ag<span class="inline-formula">_3.75</span>Cu<span class="inline-formula">_2.25</span>)<span class="inline-formula">_Σ6</span><span class="inline-formula">^<i>M</i>(1)</span>[Cu<span class="inline-formula">_3.90</span>(Zn<span class="inline-formula">_1.18</span>Fe<span class="inline-formula">_0.69</span>Cd<span class="inline-formula">_0.26</span>)<span class="inline-formula">_Σ2.13</span>]<span class="inline-formula">_Σ6.03</span><span class="inline-formula">^<i>X</i>(3)</span>(Sb<span class="inline-formula">_3.69</span>As<span class="inline-formula">_0.27</span>)<span class="inline-formula">_Σ3.96</span><span class="inline-formula">^<i>S</i>(1)</span>S<span class="inline-formula">_11.94</span> <span class="inline-formula">^<i>S</i>(2)□</span>. Kenoargentotetrahedrite-(Zn) is cubic, <span class="inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" id="M38" display="inline" overflow="scroll" dspmath="mathml"><mrow><mi>I</mi><mover accent="true"><mn mathvariant="normal">4</mn><mo mathvariant="normal">‾</mo></mover></mrow></math><span><svg:svg xmlns:svg="http://www.w3.org/2000/svg" width="12pt" height="13pt" class="svg-formula" dspmath="mathimg" md5hash="6502d9c67abdb99f84e5dd6b0fba91ba"><svg:image xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="ejm-36-397-2024-ie00001.svg" width="12pt" height="13pt" src="ejm-36-397-2024-ie00001.png"/></svg:svg></span></span>3<span class="inline-formula"><i>m</i></span> (no. 217), with <span class="inline-formula"><i>a</i></span> <span class="inline-formula">=</span> 10.4624(4) Å, <span class="inline-formula"><i>V</i>=</span> 1145.23(13) Å<span class="inline-formula">³</span>, and <span class="inline-formula"><i>Z</i>=</span> 2. The crystal structure has been refined to a final value of <span class="inline-formula"><i>R</i>₁=</span> 0.0247 on the basis of 274 independent reflections (<span class="inline-formula"><i>F</i>_o</span> <span class="inline-formula"><i>&gt;</i></span> 4<span class="inline-formula"><i>σ</i></span> (<span class="inline-formula"><i>F</i>_o)</span>) by using single-crystal X-ray diffraction data. The seven strongest X-ray powder diffraction lines (<span class="inline-formula"><i>d</i></span> in Å (<span class="inline-formula"><i>I</i></span>) (<i>hkl</i>)) are the following: 3.010 (100) (222), 1.844 (30) (044), 2.606 (22) (004), 1.572 (15) (226), 2.046 (9) (134), 7.35 (6) (011), and 1.909 (5) (125). Kenoargentotetrahedrite-(Zn) is isostructural with other keno-member tetrahedrites with the [Ag<span class="inline-formula">₆</span>]<span class="inline-formula">⁴⁺</span> cluster. The structure refinement result confirms the coupling between the site occupancy factor of subvalent hexasilver clusters at the <span class="inline-formula"><i>M</i></span>(2) site and that of the vacancy at the <span class="inline-formula"><i>S</i></span>(2) site. This relationship further substantiates the charge balance substitution mechanism of S-deficiency tetrahedrites: 6<span class="inline-formula">^<i>M</i>(2)</span>Ag<span class="inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" id="M57" display="inline" overflow="scroll" dspmath="mathml"><mrow><msup><mi/><mo>+</mo></msup><msup><mo>+</mo><mrow><mi>S</mi><mo>(</mo><mn mathvariant="normal">2</mn><mo>)</mo></mrow></msup></mrow></math><span><svg:svg xmlns:svg="http://www.w3.org/2000/svg" width="31pt" height="13pt" class="svg-formula" dspmath="mathimg" md5hash="f3324c8f9c3099690d2084a9c46027d5"><svg:image xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="ejm-36-397-2024-ie00002.svg" width="31pt" height="13pt" src="ejm-36-397-2024-ie00002.png"/></svg:svg></span></span>S<span class="inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" id="M58" display="inline" overflow="scroll" dspmath="mathml"><mrow><msup><mi/><mrow><mn mathvariant="normal">2</mn><mo>-</mo></mrow></msup><mo>=</mo></mrow></math><span><svg:svg xmlns:svg="http://www.w3.org/2000/svg" width="23pt" height="13pt" class="svg-formula" dspmath="mathimg" md5hash="ad689afe68745c2866708e116605bc31"><svg:image xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="ejm-36-397-2024-ie00003.svg" width="23pt" height="13pt" src="ejm-36-397-2024-ie00003.png"/></svg:svg></span></span> <span class="inline-formula">^<i>M</i>(2)</span>[Ag<span class="inline-formula">₆</span>]<span class="inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" id="M61" display="inline" overflow="scroll" dspmath="mathml"><mrow><msup><mi/><mrow><mn mathvariant="normal">4</mn><mo>+</mo></mrow></msup><msup><mo>+</mo><mrow><mi>S</mi><mo>(</mo><mn mathvariant="normal">2</mn><mo>)</mo></mrow></msup><mi mathvariant="normal">□</mi></mrow></math><span><svg:svg xmlns:svg="http://www.w3.org/2000/svg" width="44pt" height="13pt" class="svg-formula" dspmath="mathimg" md5hash="8eab0bcec3947b72add4ff5385516392"><svg:image xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="ejm-36-397-2024-ie00004.svg" width="44pt" height="13pt" src="ejm-36-397-2024-ie00004.png"/></svg:svg></span></span>.</p>