Just like the shell of a clam, a pearl is composed of calcium carbonate (mainly aragonite or a mixture of aragonite and calcite). in minute crystalline form, which has been deposited in concentric layers. The ideal pearl is perfectly round and smooth, but many other shapes, known as baroque pearls, can occur.
Rimula is a genus of fungi in the Helotiales order. The relationship of this taxon to other taxa within the order is unknown (incertae sedis), and it has not yet been placed with certainty into any family. ^ Lumbsch TH, Huhndorf SM. (December 2007). Outline of Ascomycota â 2007.
Arugula, also known as rocket and rucola, is a less recognized cruciferous vegetable that provides many of the same benefits as the notoriously nutritious better-known vegetables in the cruciferous family such as broccoli, kale and Brussels sprouts.Arugula leaves are tender and bite-sized with a bit of a tangy flavor.rugula is a less recognized cruciferous vegetable that provides many of the same benefits as broccoli, kale and Brussels sprouts. Arugula also contains 1 gram of protein, 0.3 grams of fat, and 1.5 grams of carbohydrate (including 0.6 grams of fiber and 0.8 grams of sugar).