Out of over 3,000 different minerals, only about 50 are commonly fashioned into gemstones. Some of the more commonly used minerals include diamonds, sapphires, rubies, emeralds, and turquoise. Most gems, including diamonds, are fashioned by a process known as faceting, which involves cutting the surface of the mineral into a number of flat faces. The size, number, and angles of the facets on a gemstone are mathematically calculated to maximize light dispersion.
Music keyboards are the focus of the MusicKeyboards.us website, which explains what a music keyboard is and defines the various types of traditional and digital music keyboards. It explores the differences between keyboard instruments, including the number of keys available on each type of keyboard. Links to keyboard dealers and manufacturers are included on the site. Visitors can learn about musical keyboards such as pianos, organs, and synthesizers.
Animal care and service workers are employed in a number of animal-related positions, including animal caretaker, animal trainer, kennel attendant, groomer, pet sitter, groom, and zookeeper. They are employed by boarding kennels, pet stores, animal shelters, rescue leagues, veterinary clinics, stables, laboratories, aquariums, natural aquatic habitats, and zoological parks.
Meat processing involves converting animal carcasses into manageable pieces known as boxed-meat or case-ready meat for use by wholesalers and retailers. There are a number of occupations that are involved in meat processing. These occupations include slaughterers and meat packers, poultry cutters and trimmers, fish cutters and trimmers, and butchers and meat cutters.