Friday, August 19, 2011

White bentonite - most delicious rock on earth!

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The last post demonstrated how we use big machines to dig deeper for science. Let me introduce one of the fruits that we could reap because of it: white bentonite. It is the lower most bentonite bed in the region. Roughly 2 - 5 cm thick and very, very pure montmorillonite. If it would be thicker and if it would not be coverered by 40 cm of sandy dirt it would be a real treasure. Mine workers are known to eat it when having problems with their stomach, i.e. pyrosis. A table spoon of white bentonite and it will pass after some minutes. The best way to describe its physical appearance is white chocolate. It's nearly in-distuigishable visually. We've been literally eating our way upwards in this pit. White bentonite has no taste but a pleasent consistency in the mouth - just like chocolate. It shows a conchoidal fracture and has a waxy feel.

Cream-white bentonite. Yummy!

P.S. Please bear with me for the superficial postings. Being a PhD and a teaching assistant eats all my time and most of the creativity. Writing high-quality post is unfortunately a time-consuming task. I don't have much time.

1 comment :

Rod said...

I dont know why people look at me funny when I say "try eating some clay". It wont do any harm (in moderation) and you can figure out how much montmorillonite there is... I mean is there any other way?