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    <lastmod>2025-10-20</lastmod>
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    <lastmod>2025-10-20</lastmod>
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    <priority>0.9</priority>
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  <url>
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    <lastmod>2025-10-20</lastmod>
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  <url>
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    <lastmod>2025-10-20</lastmod>
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    <priority>0.9</priority>
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  <url>
    <loc>https://densityformula.com/guides/density-vs-mass-vs-volume/</loc>
    <lastmod>2025-10-20</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.9</priority>
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  <!-- Secondary Guide Pages -->
  <url>
    <loc>https://densityformula.com/guides/density-applications/</loc>
    <lastmod>2025-10-20</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.8</priority>
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  <url>
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    <lastmod>2025-10-20</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.8</priority>
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  <!-- Calculator Pages -->
  <url>
    <loc>https://densityformula.com/calculators/material-density/</loc>
    <lastmod>2025-10-20</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.8</priority>
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  <!-- FAQ Page -->
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