Mrk Jewellers Sydney, Australia – Blogs Page

Gemology is the science of studying, cutting, and valuing precious stones, but the essence of gemology is in identifying the gemstones. One who works in the field of gemology is called a gemologist, and jewelers and goldsmiths also may be gemologists.

Precious metals are rare, naturally occurring metallic chemical elements of high economic value. Chemically, the precious metals tend to be less reactive than most elements. They are usually ductile and have a high lustre.

In economics, a luxury good (or upmarket good) is a good for which demand increases more than what is proportional as income rises, so that expenditures on the good become a greater proportion of overall spending. Luxury goods are in contrast to necessity goods, where demand increases proportionally less than income.