Phenomenon Gems

5 The Northern Light In A Gemstone

May 16, 2011By 1 Comment
5 The Northern Light In A Gemstone

An Aurora Borealis or the Northern Light is a natural light display in the sky, particularly in the polar regions and usually occuring at night, caused by the collision of charged particles directed by the Earth’s magnetic field. The optical phenomena of gemstones with this ‘Northern Light’ has a shimmering blue aurora called  Adularescence and is most […]

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4 Chameleon, I Am

February 18, 2011By 0 Comments
4 Chameleon, I Am

Another type of Phenomenal Gems is the Color-Change Gemstone. These are gemstones that display different colors according to changes in lighting condition, much as a Chameleon monitor lizard, which changes the color of its scale to camouflage itself against other predators to enable it to blend in to the environment. Now the chameleon does not […]

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3 The All Seeing Eye

December 22, 2010By 0 Comments
3 The All Seeing Eye

Chatoyancy, is an optical reflectance effect seen in certain gemstones. Coined from the French word “œil de chat,” meaning “cat’s eye,” chatoyancy arises either from the fibrous structure of a material or from fibrous inclusions or cavities within the stone. A lot of people have mistaken that cat’s eye is a type of gemstone with a […]

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2 A Star Is Born

August 12, 2010By 215 Comments
2 A Star Is Born

Asterism is the effect of a six-ray or four-ray star on top of a dome of a cabochon gemstones. In effect, asterism is the same as chatoyancy (Read here for Phenomenon Gems), except that there are 3 sets of fine parallel fibers lying along the same lateral axes and intersecting at 60 degrees to each […]

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1 Phenomena Gems – An Introduction

July 27, 2010By 32 Comments
1 Phenomena Gems – An Introduction

Phenomena gems are gems that display unusual optical effects.  These optical effects can be brought about by a concentrated beam of light and different types of lighting conditions when light interact with the inclusions and the particular inner structure of the gems.  Phenomena gems are often cut as cabochons and tablets to bring out the […]

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