A cabinet specimen of demantoid garnets on matrix.  Interestingly enough, the matrix is actually composed of garnet, not sedimentary rock, as was originally thought.

As with all of these, the color is best in sunlight.  In incandescent light, the green tends to look somewhat dull.

By now most people know this, but the locality for these specimens is situated in a mangrove swamp which gets flooded by the tide every day. 

The color on this piece is amazing, even in incandescent light (normally this saps the color) this piece retains a bright green color that only improves with sunlight..