Conversely, the couple receives a âmarriage bonusâ if its partners pay less income tax as a married couple than they would have as two single individuals. This calculator lets you see whether couples in particular situations receive tax penalties or bonuses from marriage.
Nephrite can be found in a creamy white form (known in China as mutton fat jade) as well as in a variety of green colours, whereas jadeite shows more colour variations, including blue, lavender-mauve, pink, and emerald-green colours. Of the two, jadeite is rarer, documented in fewer than 12 places worldwide.
Feldspars are used to make ceramics and ceramic glazes. The feldspar called moonstone is used as gemstone; it is a birthstone for June. It can be considered a crystalline minerals made up of aluminum silicates with sodium, potassium, or calcium, usually glassy; it is used as flux in glass and ceramic manufacture, also used in abrasives, fillers in paint and plastics and in insulation.