"water sapphire" meaning in English

{
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    {
      "args": {
        "1": "en",
        "2": "fr",
        "3": "saphir d'eau"
      },
      "expansion": "French saphir d’eau",
      "name": "uder"
    }
  ],
  "etymology_text": "Equivalent to French saphir d’eau.",
  "forms": [
    {
      "form": "water sapphires",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
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      "args": {},
      "expansion": "water sapphire (plural water sapphires)",
      "name": "en-noun"
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
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          "kind": "other",
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          "kind": "topical",
          "langcode": "en",
          "name": "Minerals",
          "orig": "en:Minerals",
          "parents": [
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            "Mineralogy",
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      ],
      "glosses": [
        "A deep blue variety of iolite, sometimes used as a gem."
      ],
      "id": "en-water_sapphire-en-noun-~Q-mHljM",
      "links": [
        [
          "mineralogy",
          "mineralogy"
        ],
        [
          "iolite",
          "iolite"
        ],
        [
          "gem",
          "gem"
        ]
      ],
      "raw_glosses": [
        "(mineralogy) A deep blue variety of iolite, sometimes used as a gem."
      ],
      "topics": [
        "chemistry",
        "geography",
        "geology",
        "mineralogy",
        "natural-sciences",
        "physical-sciences"
      ]
    }
  ],
  "word": "water sapphire"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "fr",
        "3": "saphir d'eau"
      },
      "expansion": "French saphir d’eau",
      "name": "uder"
    }
  ],
  "etymology_text": "Equivalent to French saphir d’eau.",
  "forms": [
    {
      "form": "water sapphires",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "water sapphire (plural water sapphires)",
      "name": "en-noun"
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
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        "English countable nouns",
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      "glosses": [
        "A deep blue variety of iolite, sometimes used as a gem."
      ],
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          "mineralogy",
          "mineralogy"
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        [
          "iolite",
          "iolite"
        ],
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        ]
      ],
      "raw_glosses": [
        "(mineralogy) A deep blue variety of iolite, sometimes used as a gem."
      ],
      "topics": [
        "chemistry",
        "geography",
        "geology",
        "mineralogy",
        "natural-sciences",
        "physical-sciences"
      ]
    }
  ],
  "word": "water sapphire"
}