calcium bentonite

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Leonardo da Vinci (1452-1519), Italian Renaissance painter from Florence. Engraving by Cosomo Colombini (d. 1812) after a Leonardo self portrait. Ca. 1500.

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Lead image for "A Timeline of the World in 8 Maps"

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Hemp (Cannabis sativa).

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Camel at Khor Rori, Oman; mammal.

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Young boys working in a thread spinning mill in Macon, Georgia, 1909. Boys are so small they have to climb onto the spinning frame to reach and fix broken threads and put back empty bobbins. Child labor. Industrial revolution

The Rise of the Machines: Pros and Cons of the Industrial Revolution

calcium bentonite

mineral

Learn about this topic in these articles:

bentonite

In bentonite
Calcium bentonites are nonswelling and break down to a finely granular aggregate that is widely used as an absorbent clay sometimes called fuller’s earth.
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