Subject: How was the paint made that was used in the temples and tumbs in Egypt?

I AM TRYING TO PUT TOGETHER A UNIT  
A 6TH GRADE  SOCIAL STUDIES CLASS 
ON EGYPT. WHILE IN EGYPT WE WERE  
TOLD THAT THE PAINTING ON THE 
WALLS OF  THE TOMBS AND TEMPLES 
WERE A  RESULT OF PAINT MADE FROM 
ROCKS. AT THE TIME  I WASN'T 
CONTEMPLATING TEACHING SO DIDN'T 
THINK TO ASK HOW THIS WAS  DONE. I 
DON'T THINK ANYONE CAN  TRUELY
APPRECIATE THE VIVID COLORS STILL 
PRESENT TODAY IN THESE TEMPLES. TO 
TRY AND SHOW THE STUDENTS I HAVE 
BEEN  TRYING TO FIGURE OUT HOW TO 
MIX  SOME PAINT THAT MAY HAVE BEEN 
USED BY EGYPTIANS BUT I HAVEN'T HAD 
ANY  LUCK IN ONE FINDING  OUT WHAT 
ROCKS, MINERAL, OR GEMS COULD 
HAVE BEEN USED AND  SECONDLY HOW 
THESE WOULD HAVE  BEEN APPLIED. 
THANK YOU 
Cherilyn G. Crittenden 

Re: How was the paint made that was used in the temples and tumbs in Egypt?