Acknowledgments

We would like to thank the following people for the use of their images, data and many more. Without them this project would not be what it is now.

• Alain van Acker and Barbra Voltaire for their selfless dedication to the free availability of gemological information.
• Edward Bristol at Wild Fish Gems for his generous gemstone photo donations.
• Richard Kocurek
• Rick Martin at Art Cut Gems for the generous use of his gemstone photos.
• Gene Flanigan at Precision Gem for graciously offering us the use of his gemstone photos.
• Steve Lembeck of Lembeck Gems for freely allowing the use his gemstone photos.
• Kevin Schwebel, Handmade Enterprises for generously allowing us the use of his gemstone photos.
• Jolyon Ralph from Mindat for letting us cross reference our data.
• Brad Payne from The Gem Trader for the kind offer of the use of his gemstone photographs.
• Peter Grumitt from Apsara and Top Gem UK for the use of his amazing inclusion pictures.
• Richard Wise for the use of his Jeff Scovil photos from both R.W. Wise Goldsmiths and his book, Secrets of the Gem Trade.
• Parels-AEL for the use of their photographs and information on pearls.
• Chaman Golecha of the Gem Testing Laboratory, Jaipur, India for the wonderful additions and images.