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 called Roquette, is a leafy green vegetable, like lettuce and spinach. Native to the Mediterranean and Asia, Roquette is a member of the mustard family.Like other leaf crops, growing Arugula in cool weather is best. The Name Game: Arugula, or Roquette, is known by several other names, including Rocket, Garden Rocket, Rucola, Rugola, and Rocket Salad.Roquette is a leafy vegetable with a peppery, spicy taste. It is most commonly used for salad greens, or cooked like spinach.It is also used it in soups, pastas and pestos.he Name Game: Arugula, or Roquette, is known by several other names, including Rocket, Garden Rocket, Rucola, Rugola, and Rocket Salad. Roquette is a leafy vegetable with a peppery, spicy taste.