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Tag Archives: mineral

Making rocks into magnets

By Sid Perkins / September 28, 2012

Lodestone is the most magnetic and common type of natural magnet.Credit: Wikimedia/Ryan Somma

Lab experiments show one way that certain types of stones can morph into magnets

Posted in Chemistry, Earth | Tagged Charles Aubourg, claystone, crystals, Douglas Elmore, electrons, geology, getinvolved, lava, lodestone, magnet, magnetic field, magnetism, magnetite, mineral, nucleus, sedimentary rocks, topstories, University of Oklahoma, University of Pau and the Adour Countries

Stony bacteria

By Roberta Kwok / May 14, 2012

A newly discovered bacterium has pearl-like lumps inside. Credit: CNRS, K. Benzerara & S. Borensztajn

Lake-dwelling bacterium has hard lumps inside it

Posted in Microbes, Fungi & Algae | Tagged bacteria/protists/fungi, bacterium, cyanobacterium, getinvolved, Marine bacteria, mineral, oceanography, proportion