What does tanzanite look like
Yves Lemay | Jul 09, 20
Few gems have attained the popularity of tanzanite in such a short period. The gem was only discovered in the 1960s, and soon the demand raised the prices to a very respectable level. The government of Tanzania promoted this gem with an expertise that would make DeBeers proud. Tanzanite is a beautiful gem, but with moderate hardness and perfect cleavage, it is less than ideal for wearing in jewelry.
Yves Lemay | Jul 06, 20
What is spinel gemstone
Spinel is the great impostor of gemstone history: many famous rubies in crown jewels around the world are actually spinels. The most famous is the Black Prince's ruby, a magnificent 170-carat red spinel that now adorns the Imperial State Crown of England in the British Crown Jewels after a long history: Henry V even wore it on his battle helmet!
Yves Lemay | Jul 03, 20
Peridot belongs to the forsterite-fayalite mineral series, which is part of the olivine group. It is one of the few "idiochromatic" gems, meaning its color comes from the basic chemical composition of the mineral itself, not from minor impurities, and therefore will only be found in shades of green.
Yves Lemay | Jul 01, 20
Opals stand in a class by themselves. More than any other gem, each opal is distinctly an individual. No other stone has as rich and varied folklore. They are both one of the luckiest and unluckiest gems a person can own.
Yves Lemay | Jun 30, 20
Morganite for engagement rings
Morganite is a beryl, colored by traces of manganese. Although violet and peach are possible colors, the most common and preferred color is pink. Heat and light will remove the yellow component from peach beryl, so it is often heated to get "pinker" stones.
Yves Lemay | Jun 26, 20
Moonstone or "Adularia," an orthoclase feldspar, was initially named for an early mining site at Mt. Adular in Switzerland. From this tradition, we derive the term "adularescence," which is the optical phenomenon of iridescence, which creates a billowy, floating blue to white light in this gem.
Yves Lemay | Jun 24, 20
Where malachite is found
Malachite is rarely enhanced, although lower quality, less compact pieces may be stabilized with plastic resins or given a surface polish with wax. Although synthetic malachite has been manufactured for research purposes, it has not been found in the gem marketplace.