Prehnite
Prehnite
Prehnite

Prehnite

€290,00

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SKU: A964
Mererani, Merelani Hills, Lelatema Mountains, Simanjiro District, Manyara Region, Tanzania
On this beautiful specimen, several bright yellow prehnite crystals have grown on quartz, nicely contrasted by the typical dark graphite matrix.
15.3 x 6.6 x 6.1 cm
662.8 g

Prehnite is not a rare mineral in itself, but collectible crystals of this silicate with beautiful colors are not common. The best crystals come from Mererani in Tanzania, where outstanding collector specimens of yellow, green, and even blue prehnite are found. These are sometimes associated with other minerals such as tanzanite, creating exceptional parageneses that attract the attention of collectors internationally. In 2025, a large find of blue prehnite was discovered in Mererani, marking the first such find in several years. Interestingly, only the blue prehnite is UV-active.