"mountain soap" meaning in English

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      "expansion": "mountain soap (uncountable)",
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
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          "name": "Minerals",
          "orig": "en:Minerals",
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      "examples": [
        {
          "ref": "1805, Robert Jameson, A Treatise on the External Characters of Minerals, page 76:",
          "text": "It soils either strongly, as chalk and mountain soap; or slightly, as molybdana, lead glauce, and graphite. Besides this, there are three other distinctions connected with this character to be attended to.",
          "type": "quote"
        },
        {
          "ref": "1848, American Journal of Science and Arts, page 72:",
          "text": "[…] seven different minerals possessing the same formula, namely, fahlunite, esmarkite, pyrargillite, bole, iron lithomarge, halloylite from La Vouth and from Thiviers, and mountain soap from Thuringia.",
          "type": "quote"
        },
        {
          "ref": "1859, Gustav Bischof, Elements of Chemical and Physical Geology ..., page 311:",
          "text": "Sometimes, after removing the coating of calcspar from the crystals, they appear to be covered with a mass resembling steinmark or mountain soap. The compact and crystalline hornblende occurs almost everywhere as a constituent of the[…]",
          "type": "quote"
        }
      ],
      "glosses": [
        "A soft earthy mineral, of a brownish colour, which has a greasy or soapy feel and is used as a filler in crayons."
      ],
      "id": "en-mountain_soap-en-noun-SzTWRFQH",
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      "raw_glosses": [
        "(possibly obsolete) A soft earthy mineral, of a brownish colour, which has a greasy or soapy feel and is used as a filler in crayons."
      ],
      "synonyms": [
        {
          "word": "rock soap"
        },
        {
          "word": "saponite"
        }
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      "tags": [
        "obsolete",
        "possibly",
        "uncountable"
      ]
    }
  ],
  "word": "mountain soap"
}

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      "expansion": "mountain soap (uncountable)",
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
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        {
          "ref": "1805, Robert Jameson, A Treatise on the External Characters of Minerals, page 76:",
          "text": "It soils either strongly, as chalk and mountain soap; or slightly, as molybdana, lead glauce, and graphite. Besides this, there are three other distinctions connected with this character to be attended to.",
          "type": "quote"
        },
        {
          "ref": "1848, American Journal of Science and Arts, page 72:",
          "text": "[…] seven different minerals possessing the same formula, namely, fahlunite, esmarkite, pyrargillite, bole, iron lithomarge, halloylite from La Vouth and from Thiviers, and mountain soap from Thuringia.",
          "type": "quote"
        },
        {
          "ref": "1859, Gustav Bischof, Elements of Chemical and Physical Geology ..., page 311:",
          "text": "Sometimes, after removing the coating of calcspar from the crystals, they appear to be covered with a mass resembling steinmark or mountain soap. The compact and crystalline hornblende occurs almost everywhere as a constituent of the[…]",
          "type": "quote"
        }
      ],
      "glosses": [
        "A soft earthy mineral, of a brownish colour, which has a greasy or soapy feel and is used as a filler in crayons."
      ],
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        "(possibly obsolete) A soft earthy mineral, of a brownish colour, which has a greasy or soapy feel and is used as a filler in crayons."
      ],
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  "synonyms": [
    {
      "word": "rock soap"
    },
    {
      "word": "saponite"
    }
  ],
  "word": "mountain soap"
}