This specimen of dendritic agate is so exceptional, in that is looks like a painting of a weathered tree on a tiny island.  This type of stone is also called Yemeni tree agate.  The stone was originally in an antique pin, but I had it made into the shiny new pendant you see now!  The weight is 5.6 grams and diameter is 23mm.  All of the sterling silver components are brand new; the stone does have some very minor surface wear, only visible through magnification.