  However, the diamond itself is a metamorphic  mineral, as it forms under heat and pressure from solid-state  processes. It forms independently of the igneous rock in which it  is found, qualifying it as a type of xenocryst. + 30 others found this useful.
The zest of a lime is the outer green layer of peel, which contains fragrant and flavorful oils.Lime zest adds intense flavor to cocktails, desserts and a number of other recipes.ollect the zest and place it in a small bowl. Once the whole lime has been zested, or you have as much zest as you need, set aside the lime for later use. Use a knife to scrape the zest off the cutting board and into a small bowl, or directly into the dish you are cooking as instructed by the recipe.
Zesting an orange. Zest is a food ingredient that is prepared by scraping or cutting from the outer, colorful skin of unwaxed citrus fruits such as lemon, orange, citron, and lime. Zest is used to add flavor (zest) to foods.In terms of fruit anatomy, zest is obtained from the flavedo (exocarp) which is also referred to as zest. The flavedo and white pith (albedo) of a citrus fruit together makes up its peel.he white portion of the peel under the zest (pith, albedo or mesocarp) may be unpleasantly bitter and is generally avoided by limiting the peeling depth. Some citrus fruits have so little white mesocarp that their peel can be used whole. Dried mandarin peel used whole as a seasoning (chenpi in Chinese).