This is a rare type of quartz known as Green Prase Quartz, where the green mineral is known as Hedenbergite. This is a very large Hedenbergite Green Quartz cluster specimen of good quality due to the richness in green color.
Weight: 1.9 kg
Dimensions: 6.1 inches X 4.9 inches
Location: Inner Mongolia, China

Hedenbergite Green Quartz :

Hedenbergite is a calcium iron silicate mineral found in metamorphic rocks that are high in iron, skarns and alkalic granites. Hedenbergite is an iron rich member of the Pyroxene group which includes Diopside and Augite. Hedenbergite has a hardness of between 5.5 to 6.5 and the color range from green, dark green to black. Hedenbergite is sometimes found within Quartz, forming Hedenbergite Green Quartz. Such Quartz crystals, usually formed in clusters, can be found in Mongolia, and is considered rare, especially bigger clusters. Another name for such type of Quartz is Mongolian Quartz,

Hedenbergite, being a green stone, is associated with heart chakra. Thus, Hedenbergite is known to be an emotional healer, which helps to heal negative feelings such as sadness, anxiety, worries and depression. Hedenbergite also assist in attracting new friendships and relationships.