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Classic Silica Discfor curiosityClassic Silica aerogel is just that – the same ethereal blue material NASA has used on the Mars rovers and the Stardust mission! Extremely hard-to-find transparent monolithic form. Great for gifts, science projects, and display. Density is ~0.095 g/cm3, meaning these aerogels are an incredible 96% air by volume! Hydrophilic surface chemistry.
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