The term Jade refers to two different stones; Jadeite and Nephrite.  Both Jadeite and Nephrite appear similar to look at, but they have differing chemical compositions.  Nephrite can be translucent to opaque and is commonly seen in colours of green, white, brown and black.  Jadeite also comes in various colours, with the translucent 'Imperial Green' being the highly prized type.  Both Jadeite and Nephrite have had important cultural significance to various peoples in human history.  

'Jade' is considered foremost to be a lucky stone and a talisman for good fortune.  

This particular stone is White Nephrite.  This beautiful bright white and partly cream coloured stone can be used in deep meditative practice to bring about calm and serenity in your spiritual, emotional and physical realms, especially if you are facing a situation you cannot change.

This particular alien carving is described as being Mayan in style; a style replicated from alien like drawings, carved ornaments and sculptures discovered in ancient Mayan ruins.  This other-worldly aspect of this carving style is appropriate for persons seeking connection beyond the realms of modern scientific understanding.