Prophecy Stone

Prophecy Stone is very well known, due to its name.
It has a good action to assist you to receive messages that may be of a prophetic nature. This is commonly why people wish to use them. 
Once you have made a deep connection to the stone you may receive powerful messages.
They are known to both enhance your memory and aid your thinking. In addition they may help to stimulate your ability to think more clearly.
Prophecy Stone
Use them regularly in meditation to develop this gift, but remember that its not instant and may take some time to develop.
These stones have a quite powerful high vibration with a potent and easily felt energy.
They have a number of beneficial healing attributes and are potent grounding stones.