[{"from": "human", "value": "Provide a brief overview of this molecule. [Zr]"}, {"from": "gpt", "value": "The molecule appears as a grayish-white hard lustrous metal. Specific gravity 6.4. Melting point about 3362 \u00b0F (1850 \u00b0C). Insoluble in water. Low toxicity."}]