The following is an extract from the Renascent Gem Essence workbook (please note the material is copyright, please do not reproduce it without our direct permission - Thank you)
Using The Charts
To assist you in determining exactly which would be the most appropriate gem/essence to use without having to read through or memorise huge chunks of information. Following this section you will find comprehensive charts on emotional problems and concerns and the gems/essences to assist in alleviating the concern. In some cases there is more than one gem/essence suggested for a concern. Where this occurs I suggest you then go to the appropriate full description for each gem, read through each and then decide which feels most appropriate for your situation. (These can be found in Crystal Awareness, or Esoteric Gemmology) Or you may choose to use a combination as listed above.