WHAT ARE PEARLS?
Pearls are hard, glistening objects that are produced within the soft tissue of a living shelled mollusk or another animal, such as fossil conulariids. They consist of calcium carbonate in minute crystalline forms, just as the shells of mollusks, which have deposited in concentric layers. The calcium carbonate is mainly aragonite, or a mixture of aragonite and calcite. The ideal pearl is perfectly round and smooth, but many other shapes can occur, and pearls with these other shapes are called...
WHAT ARE PEARLS?
Pearls are hard, glistening objects that are produced within the soft tissue of a living shelled mollusk or another animal, such as fossil conulariids. They consist of calcium carbonate in minute crystalline forms, just as the shells of mollusks, which have deposited in concentric layers. The calcium carbonate is mainly aragonite, or a mixture of aragonite and calcite. The ideal pearl is perfectly round and smooth, but many other shapes can occur, and pearls with these other shapes are called...
DIAMONDS FROM PEANUT BUTTER.
Strange isn’t it? Producing diamonds from peanut butter – a yummy substance that is eaten with sandwiches. Well you will be surprised. It all started with an experiment to know the composition of the earth’s mantle and what happens there. Here is how. A scientist at the Bayerisches Geoinstitut, University of Bayreuth, Germany by name Dan Frost was conducting an experiment to find out the constituents of the inner parts of the earth. The earth is divided into layers namely : the core, the inne...
DIAMONDS FROM PEANUT BUTTER.
Strange isn’t it? Producing diamonds from peanut butter – a yummy substance that is eaten with sandwiches. Well you will be surprised. It all started with an experiment to know the composition of the earth’s mantle and what happens there. Here is how. A scientist at the Bayerisches Geoinstitut, University of Bayreuth, Germany by name Dan Frost was conducting an experiment to find out the constituents of the inner parts of the earth. The earth is divided into layers namely : the core, the inne...
