This set is made up of a mixed selection of 7 healing stones (sizes, colours and shapes may vary.
 
Cleansing:  Always check first that a crystal is safe to be put in water. 
 
I would also advise that new crystals (and those that have been used for any length of time) are cleansed in clean water to recharge them.  There are of course many methods of cleaning crystals, including putting them in the moonlight, burying them in the earth, using incense.
 
Disclaimer::Please note all the information contained above is for information purposes only. It is not recommended as a means of diagnosing or treating any illness, all matters concerning physical and mental health should be supervised by a health practitioner knowledgeable in treating that particular condition.