Murano Geode Cased Glass Jade Green Dish: A flat wide rim and multi-hued cased glass define the geode style from Murano. This fine example is in three shades of jade green separated by creamy white glass and organic in shape. It is most likely is from the 1960s. The term “geode” is quite literal: the art glass resembles a geode mineral sample sliced to reveal the jewel tones inside. Very heavy considering it is only five inches across.