The information on the crystals & minerals has been researched from numerous sources. If you would like to expand your knowledge further, there are several web sites and books we recommend:
Web Sites
Books
www.mindat.org
HEALING CRYSTALS Michael Gienger Earthdancer Findhorn Press ISBN 978-1-84409-067-9
www.wikipedia.org
LOVE IS IN THE EARTH Melody Earth-Love publishing House ISBN 0-9628190-3-4
www.dkwcrystals.co.uk
THE BOOK OF STONES Robert Simmons & Naisha Ahsian Heaven & Earth Publishing LLC ISBN 0-9621910-3-5
QUARTZ CRYSTALS Isable Silveira Earthdancer Findhorn Press ISBN 978-1-84409-148-5