"troctolite" meaning in English

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  "etymology_text": "From German Troktolit.",
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      "form": "troctolites",
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  "lang_code": "en",
  "pos": "noun",
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      "derived": [
        {
          "word": "troctolitic"
        }
      ],
      "examples": [
        {
          "ref": "2009 January 16, Ian Garrick-Bethell et al., “Early Lunar Magnetism”, in Science, volume 323, number 5912, →DOI:",
          "text": "Here, we report a magnetic study of an unshocked ancient rock with a well-constrained thermal history, troctolite 76535.",
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        }
      ],
      "glosses": [
        "A rare type of ultramafic intrusive rock, consisting primarily of olivine and calcic plagioclase"
      ],
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        [
          "geology",
          "geology"
        ],
        [
          "ultramafic",
          "ultramafic"
        ],
        [
          "olivine",
          "olivine"
        ],
        [
          "calcic",
          "calcic"
        ],
        [
          "plagioclase",
          "plagioclase"
        ]
      ],
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        "(geology) A rare type of ultramafic intrusive rock, consisting primarily of olivine and calcic plagioclase"
      ],
      "tags": [
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      "topics": [
        "geography",
        "geology",
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  "word": "troctolite"
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  "lang_code": "en",
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        }
      ],
      "glosses": [
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      ],
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