This included quartz cabochon is a great example of epitaxy. The golden rutile crystals grow upon the surfaces of the hexagonal hematite crystals, creating star patterns in gold and silver within this clear quartz stone. The stone measures 50 x 30mm, and is a teardrop shape. It is from Brazil. The polish is excellent on the domed top, and slightly domed back. The dome is approximately 16 mm high.