Clay mineral

Clay (42)
Clay mineral (3)

Synopsis: Civil engineering: Civil engineering generale: Building materials: Clay: Clay mineral:

According to Curiosity's onboard chemistry lab the sample is between 20 and 30 per cent smectite a clay mineral that forms in the presence of water.

The instruments showed that between 20 and 30 per cent of the dust is called a clay mineral smectite

and unearthed clay minerals after drilling Martian rock again suggesting an aquatic environment in the planet past.

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