Moldavite Stone | Type of Tektite

 

 

green coloured moldavite a glass-like natural substance used as a gemstone

 

Moldavite Stone | Green Coloured Mineraloid


Moldavite is a curious glass-like material that is believed to have formed following a meteorite shower that fell in the Moldau Valley (now the Czech Republic) around 14.8 million years ago.  Sometimes incorrectly spelt as moldovite, this translucent dark green coloured stone is relatively rare and when unpolished has a particularly distinctive texture.

Moldavite comes from the family of "glassy objects" known as tektites.  These include irregular and at times intricately shaped nodules or "blobs" of a glassy substance that often contains tiny bubbles.  Stones have no internal crystal structure hence cannot accurately be referred to as a mineral.  Moldavite and other materials which have no significant crystal structure some of which include shungite, opal and obsidian are instead correctly known as a mineraloids.

The chemistry of tektites is unique and somewhat unexplained but samples taken from host rocks at the impact site where moldavite formed believe it was created following an impact from a meteorite.  The event would have caused enough heat to melt the bedrock which following the impact would have been ejected up into the atmosphere and possibly higher.  As it rapidly cooled and fell back to Earth the liquidised stone formed glass-like bodies known as tektites.  Substances formed during different impact events have different names but moldavite is by far the best known.  The pitting on the surface of the stone is the result of it being submerged beneath water for a long period of time.

Moldavite is prized for its clarity and unique colour and is mostly used as a gemstone.  It's generally agreed that it's either an extraterrestrial meteoric material of unknown origin or the resulting splash from a meteoric impact.  Some believe it may be a by-product of a volcano on the moon whilst other more dramatic theories suggest it may have been produced by the explosion of an Earth-like planet in the asteroid belt.

 

 

loose pieces of green coloured moldavite

 

Photo Courtesy of James St. John - Flickr  

 

 

 

During the Stone Age moldavite was used as a tool and thousands of years later was also valued as a talisman.  Folklore suggests an association with the fabled 'Stone of the Holy Grail' which was said to be an emerald that fell from the sky out of the crown of an angel.  Exposure to material associated with it was believed to quicken one's spiritual evolution.

Today in crystal healing this relatively rare glass-like stone is considered to be extremely powerful for spiritual development and expansion of the consciousness.  It's used for the purpose of communication to stimulate the co-operation and transfer of energies between those of extraterrestrial origins and those who inhabit Earth and is generally considered to be an important stone for this phase of human evolution.

Moldavite grades 5 to 5½ on Mohs scale of mineral hardness.

 

 

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Further Reading

Additional Information from Wikipedia
Gems from Space