Magnificently Large Prehnite Mineral on Matrix
Fantastic prehnite on matrix from South Africa, a large and hefty piece weighing in at just over two kilos.
Prehnite was first discovered in the Cape of Good Hope by Dutchman Hendrik von Prehn after whom the mineral was later named. Governor of the Cape of Good Hope and an avid mineral collector, Prehn is believed to have been the first person to have imported prehnite to Europe. The mineral was named after him in 1788 three years after he died and is believed to be the first mineral to have been named after a person.
Prehnite is relatively hard and grades 6 to 6½ on Mohs scale of mineral hardness. Rough specimens of this size are quite rare and the crystals in this piece are just fantastic. To zoom in even closer and see more detail take a look at the photograph on our Flickr page.
Weight (grams) : 2004
Size (cms) : 20.1 x 9.8 x 8.5