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      <image:caption>KS7057 Illite Crystal Model</image:caption>
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    <changefreq>daily</changefreq>
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      <image:loc>https://cdn.shopify.com/s/files/1/0610/2735/2802/products/p-117571-1490647376-Illmenite_201_20_Copy.jpg?v=1636091797</image:loc>
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      <image:caption>KS7058 Illmenite Crystal Model</image:caption>
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    <changefreq>daily</changefreq>
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      <image:loc>https://cdn.shopify.com/s/files/1/0610/2735/2802/products/p-117574-1490647386-Kaolinite_201_20_Copy.jpg?v=1636091807</image:loc>
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      <image:caption>KS7065 Kaolinite Crystal Model</image:caption>
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  <url>
    <loc>https://klingereducational.com/products/ks7083-montmorillonite-crystal-model</loc>
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    <changefreq>daily</changefreq>
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      <image:loc>https://cdn.shopify.com/s/files/1/0610/2735/2802/products/mont1.jpg?v=1646933689</image:loc>
      <image:title>KS7083 Montmorillonite Molecular Model</image:title>
      <image:caption></image:caption>
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  <url>
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    <lastmod>2026-07-21T15:57:34-04:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:loc>https://cdn.shopify.com/s/files/1/0610/2735/2802/products/p-117580-1490647406-sanadine_201_20_Copy.jpg?v=1636091797</image:loc>
      <image:title>KS7091 Sanidine Molecular Model</image:title>
      <image:caption>KS7091 Sanidine Crystal Model</image:caption>
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    <changefreq>daily</changefreq>
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      <image:title>KS7108 Alpha- Quartz (Two Cells) Molecular Model</image:title>
      <image:caption>KS7108 Alpha- Quartz (Two Cells) Crystal Model</image:caption>
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  <url>
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    <changefreq>daily</changefreq>
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      <image:loc>https://cdn.shopify.com/s/files/1/0610/2735/2802/products/p-117586-1490647425-stibnite_201_20_Copy.jpg?v=1636091810</image:loc>
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      <image:caption>KS7125 Stibnite Crystal Model</image:caption>
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  <url>
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    <changefreq>daily</changefreq>
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      <image:loc>https://cdn.shopify.com/s/files/1/0610/2735/2802/products/p-117589-1490647436-CARBONCOLLECTION.jpg?v=1636091804</image:loc>
      <image:title>KS7995 Carbon Collection Crystal Model</image:title>
      <image:caption>KS7995 Carbon Collection Crystal Model</image:caption>
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  <url>
    <loc>https://klingereducational.com/products/ks7999-ball-and-spoke-set</loc>
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    <changefreq>daily</changefreq>
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      <image:loc>https://cdn.shopify.com/s/files/1/0610/2735/2802/products/p-117592-1490647446-Ball_20and_20spoke_201_20_Copy.jpg?v=1636091800</image:loc>
      <image:title>KS7999 Ball and Spoke Set</image:title>
      <image:caption>KS7999 Ball and Spoke Set</image:caption>
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  <url>
    <loc>https://klingereducational.com/products/ks8004-anatase-crystal-model</loc>
    <lastmod>2026-07-21T15:57:34-04:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:loc>https://cdn.shopify.com/s/files/1/0610/2735/2802/products/p-117595-1490647458-anatase_20A.jpg?v=1636091803</image:loc>
      <image:title>KS8004 Anatase Molecular Model</image:title>
      <image:caption>KS8004 Anatase Crystal Model</image:caption>
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  <url>
    <loc>https://klingereducational.com/products/ks8006-aragonite-crystal-model</loc>
    <lastmod>2026-07-21T15:57:34-04:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:loc>https://cdn.shopify.com/s/files/1/0610/2735/2802/products/p-117599-1490647466-Aragonite_201_20_Copy.jpg?v=1636091812</image:loc>
      <image:title>KS8006 Aragonite Molecular Model</image:title>
      <image:caption>KS8006 Aragonite Crystal Model</image:caption>
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  <url>
    <loc>https://klingereducational.com/products/ks8011-calcite-1-2-unit-cell-crystal-model</loc>
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    <changefreq>daily</changefreq>
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      <image:loc>https://cdn.shopify.com/s/files/1/0610/2735/2802/files/20230922_105704.jpg?v=1695836498</image:loc>
      <image:title>KS8011 Calcite (1/2 unit cell) Molecular Model</image:title>
      <image:caption></image:caption>
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  <url>
    <loc>https://klingereducational.com/products/ks8016-carbon-dioxide-crystal-model</loc>
    <lastmod>2026-07-21T15:57:34-04:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:loc>https://cdn.shopify.com/s/files/1/0610/2735/2802/products/p-117606-1490647485-carbon_201_20_Copy.jpg?v=1636091802</image:loc>
      <image:title>KS8016 Carbon Dioxide Molecular Model</image:title>
      <image:caption>KS8016 Carbon Dioxide Crystal Model</image:caption>
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  <url>
    <loc>https://klingereducational.com/products/ks8021-cesium-chloride-crystal-model</loc>
    <lastmod>2026-07-21T15:57:34-04:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:loc>https://cdn.shopify.com/s/files/1/0610/2735/2802/products/p-117610-1490647496-cesium_201_20_Copy.jpg?v=1636091806</image:loc>
      <image:title>KS8021 Cesium Chloride Molecular Model</image:title>
      <image:caption>KS8021 Cesium Chloride Crystal Model</image:caption>
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  <url>
    <loc>https://klingereducational.com/products/ks8025-copper-crystal-model</loc>
    <lastmod>2026-07-21T15:57:34-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0610/2735/2802/products/p-117614-1490647506-copper_201_201.jpg?v=1636091815</image:loc>
      <image:title>KS8025 Copper Molecular Model</image:title>
      <image:caption>KS8025 Copper Crystal Model</image:caption>
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  <url>
    <loc>https://klingereducational.com/products/ks8028-diamond-crystal-model</loc>
    <lastmod>2026-07-21T15:57:34-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0610/2735/2802/files/20230921_140546.jpg?v=1695836029</image:loc>
      <image:title>KS8028 Diamond Molecular Model</image:title>
      <image:caption></image:caption>
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  <url>
    <loc>https://klingereducational.com/products/ks8030-fluorite-crystal-model</loc>
    <lastmod>2026-07-21T15:57:34-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0610/2735/2802/products/p-117623-1490647536-Fluorite_201_20_Copy.jpg?v=1636091806</image:loc>
      <image:title>KS8030 Fluorite Molecular Model</image:title>
      <image:caption>KS8030 Fluorite Crystal Model</image:caption>
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  <url>
    <loc>https://klingereducational.com/products/ks8055-pyrite-crystal-model</loc>
    <lastmod>2026-07-21T15:57:34-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0610/2735/2802/products/p-117647-1490647606-pyrite_201_20_Copy.jpg?v=1636091811</image:loc>
      <image:title>KS8055 Pyrite Molecuclar Model</image:title>
      <image:caption>KS8055 Pyrite Crystal Model</image:caption>
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  <url>
    <loc>https://klingereducational.com/products/ks8064-sodium-chloride-crystal-model</loc>
    <lastmod>2026-07-21T15:57:34-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0610/2735/2802/products/p-117655-1490647626-SODIUMCHLORIDE.jpg?v=1636091818</image:loc>
      <image:title>KS8064 Sodium Chloride Molecular Model</image:title>
      <image:caption>KS8064 Sodium Chloride Crystal Model</image:caption>
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  </url>
  <url>
    <loc>https://klingereducational.com/products/ks8066-spinel-crystal-model</loc>
    <lastmod>2026-07-21T15:57:34-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0610/2735/2802/products/p-117658-1490647636-spinel_201_20_Copy.jpg?v=1636091812</image:loc>
      <image:title>KS8066 Spinel Molecular Model</image:title>
      <image:caption>KS8066 Spinel Crystal Model</image:caption>
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  </url>
  <url>
    <loc>https://klingereducational.com/products/ks8074-wurtzite-crystal-model</loc>
    <lastmod>2026-07-21T15:57:34-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0610/2735/2802/products/p-117661-1490647647-wurtz_201_20_Copy.jpg?v=1636091809</image:loc>
      <image:title>KS8074 Wurtzite Molecular Model</image:title>
      <image:caption>KS8074 Wurtzite Crystal Model</image:caption>
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  <url>
    <loc>https://klingereducational.com/products/ks8075-zircon-crystal-model</loc>
    <lastmod>2026-07-21T15:57:34-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0610/2735/2802/products/p-117664-1490647656-zircon_20_Copy.jpg?v=1636091815</image:loc>
      <image:title>KS8075 Zircon Molecular Model</image:title>
      <image:caption>KS8075 Zircon Crystal Model</image:caption>
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  <url>
    <loc>https://klingereducational.com/products/ks8077-garnet-crystal-model</loc>
    <lastmod>2026-07-21T15:57:34-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0610/2735/2802/products/p-117666-1490647666-garnet_201_20_Copy.jpg?v=1636091821</image:loc>
      <image:title>KS8077 Garnet Molecular Model</image:title>
      <image:caption>KS8077 Garnet Crystal Model</image:caption>
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  <url>
    <loc>https://klingereducational.com/products/ks8081-beryl-crystal-model</loc>
    <lastmod>2026-07-21T15:57:34-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0610/2735/2802/products/p-117669-1490647676-beryl_201_20_Copy.jpg?v=1636091815</image:loc>
      <image:title>KS8081 Beryl Molecular Model</image:title>
      <image:caption>KS8081 Beryl Crystal Model</image:caption>
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  <url>
    <loc>https://klingereducational.com/products/ks8093-ice-crystal-model-diamond-type-with-movable-h-atom</loc>
    <lastmod>2026-07-21T15:57:34-04:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:loc>https://cdn.shopify.com/s/files/1/0610/2735/2802/products/p-117672-1490647686-ice_201_20_Copy.jpg?v=1636091812</image:loc>
      <image:title>KS8093 Ice Molecular Model (Diamond Type, with movable H atom)</image:title>
      <image:caption>KS8093 Ice Crystal Model (Diamond Type, with movable H atom)</image:caption>
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  <url>
    <loc>https://klingereducational.com/products/ks8102-face-centered-cubic-2x2x2</loc>
    <lastmod>2026-07-21T15:57:34-04:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:loc>https://cdn.shopify.com/s/files/1/0610/2735/2802/files/20230922_103459_1.jpg?v=1695835390</image:loc>
      <image:title>KS8102 Face-Centered Cubic 2x2x2</image:title>
      <image:caption></image:caption>
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  <url>
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      <image:loc>https://cdn.shopify.com/s/files/1/0610/2735/2802/files/20230926_130803.jpg?v=1695835494</image:loc>
      <image:title>KS8103 Body-Centered Cubic 2x2x2</image:title>
      <image:caption></image:caption>
    </image:image>
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  <url>
    <loc>https://klingereducational.com/products/ks8104-hexagonal-close-packed-2x2x2-crystal-lattice</loc>
    <lastmod>2026-07-21T15:57:34-04:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:loc>https://cdn.shopify.com/s/files/1/0610/2735/2802/files/20230926_110937.jpg?v=1695835645</image:loc>
      <image:title>KS8104 Hexagonal Close-Packed 2x2x2 Crystal Lattice</image:title>
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  <url>
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      <image:loc>https://cdn.shopify.com/s/files/1/0610/2735/2802/files/20230926_130347.jpg?v=1695835805</image:loc>
      <image:title>KS8106 Miller Indicies Molecular Model</image:title>
      <image:caption></image:caption>
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  <url>
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    <lastmod>2026-07-21T15:57:34-04:00</lastmod>
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      <image:loc>https://cdn.shopify.com/s/files/1/0610/2735/2802/files/screw1.jpg?v=1696516185</image:loc>
      <image:title>KS8108 Edge Dislocation Molecular Model</image:title>
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  <url>
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    <changefreq>daily</changefreq>
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      <image:loc>https://cdn.shopify.com/s/files/1/0610/2735/2802/files/edge1a.jpg?v=1696516103</image:loc>
      <image:title>KS8109 Screw Dislocation Molecular Model</image:title>
      <image:caption></image:caption>
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  <url>
    <loc>https://klingereducational.com/products/ks8201-barium-titanate-crystal-model</loc>
    <lastmod>2026-07-21T15:57:34-04:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:loc>https://cdn.shopify.com/s/files/1/0610/2735/2802/products/p-117697-1490647756-barium_201_20_Copy.jpg?v=1636091822</image:loc>
      <image:title>KS8201 Barium Titanate Molecular Model</image:title>
      <image:caption>KS8201 Barium Titanate Crystal Model</image:caption>
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  <url>
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    <lastmod>2026-07-21T15:57:34-04:00</lastmod>
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    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0610/2735/2802/products/p-117700-1490647766-biotite_201_20_Copy.jpg?v=1636091819</image:loc>
      <image:title>KS8313 Biotite Molecular Model</image:title>
      <image:caption>KS8313 Biotite Crystal Model</image:caption>
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  <url>
    <loc>https://klingereducational.com/products/ks8358-zincblende-crystal-model</loc>
    <lastmod>2026-07-21T15:57:34-04:00</lastmod>
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      <image:loc>https://cdn.shopify.com/s/files/1/0610/2735/2802/products/p-117706-1490647786-z_203_20_Copy.jpg?v=1636091820</image:loc>
      <image:title>KS8358 Zincblende Molecular Model</image:title>
      <image:caption>KS8358 Zincblende Crystal Model</image:caption>
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  <url>
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    <lastmod>2026-07-21T15:57:34-04:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:loc>https://cdn.shopify.com/s/files/1/0610/2735/2802/products/p-117710-1490647796-hydroxy_201_20_Copy.jpg?v=1636091829</image:loc>
      <image:title>KS8416 Hydroxyapatite Molecular Model</image:title>
      <image:caption>KS8416 Hydroxyapatite Crystal Model</image:caption>
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    <loc>https://klingereducational.com/products/ks8440-inverse-spinel-crystal-model</loc>
    <lastmod>2026-07-21T15:57:34-04:00</lastmod>
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      <image:loc>https://cdn.shopify.com/s/files/1/0610/2735/2802/products/p-117713-1490647806-inverse_201_20_Copy.jpg?v=1636091825</image:loc>
      <image:title>KS8440 Inverse Spinel Molecular Model</image:title>
      <image:caption>KS8440 Inverse Spinel Crystal Model</image:caption>
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  <url>
    <loc>https://klingereducational.com/products/ks9025-set-of-three-p-orbital-models</loc>
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      <image:loc>https://cdn.shopify.com/s/files/1/0610/2735/2802/files/20230922_113421.jpg?v=1696614132</image:loc>
      <image:title>KS9025 Set of three &apos;P&apos; Orbital Models</image:title>
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  <url>
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      <image:loc>https://cdn.shopify.com/s/files/1/0610/2735/2802/files/20230922_122803_edit.png?v=1696613831</image:loc>
      <image:title>KS9026 Set of five &apos;D&apos; orbital Models</image:title>
      <image:caption></image:caption>
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  <url>
    <loc>https://klingereducational.com/products/molymod-mko-100-30-diamond</loc>
    <lastmod>2026-07-21T15:57:34-04:00</lastmod>
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    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0610/2735/2802/products/p-117727-1490647866-MKO-100-30_Diamond_30_atom.jpg?v=1636091831</image:loc>
      <image:title>Molymod MKO-100-30 Diamond</image:title>
      <image:caption>Molymod MKO-100-30 Diamond</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://klingereducational.com/products/ks7996-set-of-9-basic-crystal-structures</loc>
    <lastmod>2026-07-21T15:57:34-04:00</lastmod>
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      <image:title>C1.1.1.1 Determination of the Relative Atomic Mass of Metals</image:title>
      <image:caption>C1.1.1.1 Determination of the Relative Atomic Mass of Metals</image:caption>
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      <image:title>C1.1.1.2 Determination of the Molar Mass of Gases</image:title>
      <image:caption>C1.1.1.2 Determination of the Molar Mass of Gases</image:caption>
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      <image:title>C1.1.2.1 Melting Ice, Boiling Water</image:title>
      <image:caption>C1.1.2.1 Melting Ice, Boiling Water</image:caption>
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      <image:title>C1.1.3.1 Brownian Motion of Smoke Particles</image:title>
      <image:caption>C1.1.3.1 Brownian Motion of Smoke Particles</image:caption>
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      <image:title>C1.1.3.2 Estimation of the Size of Oil Molecules</image:title>
      <image:caption>C1.1.3.2 Estimation of the Size of Oil Molecules</image:caption>
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      <image:title>C1.1.3.5 Determination of Elementary Electric Charge According to Millikan and Proof of Charge Quantisation</image:title>
      <image:caption>C1.1.3.5 Determination of Elementary Electric Charge According to Millikan and Proof of Charge Quantisation</image:caption>
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      <image:title>C1.1.3.6 Franck-Hertz Experiment</image:title>
      <image:caption>C1.1.3.6 Franck-Hertz Experiment</image:caption>
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      <image:title>C1.3.3.1 Thermal Anomaly of Water</image:title>
      <image:caption>C1.3.3.1 Thermal Anomaly of Water</image:caption>
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      <image:title>C1.4.1.1 Determination of the Oxygen Content of Air</image:title>
      <image:caption>C1.4.1.1 Determination of the Oxygen Content of Air</image:caption>
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      <image:title>C1.4.3.1 Hydrogen as a Reducing Agent</image:title>
      <image:caption>C1.4.3.1 Hydrogen as a Reducing Agent</image:caption>
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      <image:title>C1.4.4.1 Pressure-Dependency of the Volume of a Gas at a Constant Temperature (Boyle-Mariotte’s Law)</image:title>
      <image:caption>C1.4.4.1 Pressure-Dependency of the Volume of a Gas at a Constant Temperature (Boyle-Mariotte’s Law)</image:caption>
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      <image:title>C1.4.4.2 Temperature-Dependency of the Volume of a Gas at a Constant Pressure (Gay-Lussac’s Law)</image:title>
      <image:caption>C1.4.4.2 Temperature-Dependency of the Volume of a Gas at a Constant Pressure (Gay-Lussac’s Law)</image:caption>
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      <image:title>C1.4.4.3 Temperature-Dependency of the Pressure of a Gas at a Constant Volume (Amontons’ Law)</image:title>
      <image:caption>C1.4.4.3 Temperature-Dependency of the Pressure of a Gas at a Constant Volume (Amontons’ Law)</image:caption>
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      <image:title>C1.5.1.1 Extraction of Copper from Copper Oxide</image:title>
      <image:caption>C1.5.1.1 Extraction of Copper from Copper Oxide</image:caption>
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      <image:caption>C1.7.2.2 Analysis of Triprotic Phosphoric Acid by Titration</image:caption>
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      <image:caption>C2.1.1.2 Quantitative Determination of Hydrogen</image:caption>
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      <image:title>P2.5.3.2 Determining the Adiabatic Exponent cp/cV of Various Gases using the Gas Elastic Resonance Apparatus</image:title>
      <image:caption>P2.5.3.2 Determining the Adiabatic Exponent cp/cV of Various Gases using the Gas Elastic Resonance Apparatus</image:caption>
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      <image:title>P1.7.3.2 Determining the Wavelength of Standing Sound Waves</image:title>
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      <image:title>P1.8.7.3 Verifying the Bernoulli Equation - Measuring with the Precision Manometer</image:title>
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      <image:caption>P5.6.3.1 Determining the Velocity of Light Using a Periodical Light Signal at a Short Measuring Distance</image:caption>
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