There is no longer a metal spine in the pieces as pictured in the the last two images! 
 
In the first image, the colors are as follows:
1st pair: Beet, Violet, Lavender
2nd pair: Calypso, Tangerine, Lemon
3rd pair: Teal, Periwinkle, River
4th pair: Beet, Periwinkle, Violet
5th pair: Pomegranate, Calypso, Dusty Rose
6th pair: Cherry, Dusty Rose, Terra-Cotta
7th pair: Mustard, Dusty Rose, Calypso
 
2nd Image:
Cherry, Dusty Rose, Terra-Cotta
 
3rd Image:
Mustard, Dusty Rose, Terra-Cotta
 
4th Image:
All White Stone
 
5th/6th Image:
Violet, Lavender, Opal