Category Archives: Individual Gemstones

Posts specific to an individual gemstone.

World’s Largest Cut Emerald to be Sold

Next week a rare gems dealer from Calgary, Alberta is set to sell what is being called the world’s largest cut emerald.  Is it truly an emerald or is it a beryl (like emerald) that was colourless and has been dyed green?

57,500 carat Cut Emerald?

Worlds Largest Cut Emerald?

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Lily pad Like Inclusions in Peridot

Peridot is a light green gemstone with inclusions that are commonly called lily pad like inclusions.  Why do they form?  Can they be found in other gemstones?

Inclusion in Peridot

Peridot Inclusion by J McKercher

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Opal and Play-Of-Colour — Why Are There So Many Colours?

Opal displays all the colours of the rainbow.  It is the structure of opal that gives us all the colours of the visible spectrum.  Why is this play-of-colour seen in some opals and not others?

Opal under the Microscope

Opal Play-of-Colour Photo J McKercher

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Nephrite – The Inexpensive Tough Cousin of Jadeite Jade

Nephrite and Jadeite are both called jade, but they are completely different mineralogically.  Most North Americans are picturing  jadeite when they say the word “Jade”.  Yet nephrite can be found in both the United States and Canada and is more common than jadeite.

Nephrite Elephant Carving by Carl Faberge

Flickr Photo by B Tse

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Malachite – a Banded Botryoidal Ornamental Gem

Malachite is a banded gemstone with alternating dark and light shades of green.  Malachite’s name is derived from the Greek adjective malakos, meaning soft, delicate, charming and sweet.  Each specimen is unique!

Botryoidal Malachite

Malachite Photo by J McKercher

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