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This Specimen has been sold.
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2.7" Polished Thulite (Manganian-Zoisite) Stone - Trondheim, Norway
This is a 2.7" wide pink thulite palm stone collected in Trondheim, Norway. This stone has stunning coloration.
About Thulite
Thulite is a vibrant pink, manganese-bearing variety of the mineral zoisite, prized for its striking color and its connection to Scandinavian geology. Named after Thule—the ancient Greek and Roman term for the distant northern lands believed to be Scandinavia—it has long been associated with Norway’s mountainous terrain and deep cultural history. Its type locality lies in the Vestfold og Telemark region of southern Norway, where thulite occurs as vivid rose-to-raspberry masses running through pale host rock.
This material typically forms as veins, seams, and fracture fillings where manganese-rich fluids infiltrate and alter the surrounding rock, often in association with calcite. While Norway remains the classic and most sought-after source, deposits have also been discovered in the United States (notably North Carolina), as well as in Australia and New Zealand. Thulite’s dense mottling, silky luster, and excellent ability to take a polish make it a favorite for lapidary work, cabochons, carvings, and display pieces.
Thulite is a vibrant pink, manganese-bearing variety of the mineral zoisite, prized for its striking color and its connection to Scandinavian geology. Named after Thule—the ancient Greek and Roman term for the distant northern lands believed to be Scandinavia—it has long been associated with Norway’s mountainous terrain and deep cultural history. Its type locality lies in the Vestfold og Telemark region of southern Norway, where thulite occurs as vivid rose-to-raspberry masses running through pale host rock.
This material typically forms as veins, seams, and fracture fillings where manganese-rich fluids infiltrate and alter the surrounding rock, often in association with calcite. While Norway remains the classic and most sought-after source, deposits have also been discovered in the United States (notably North Carolina), as well as in Australia and New Zealand. Thulite’s dense mottling, silky luster, and excellent ability to take a polish make it a favorite for lapidary work, cabochons, carvings, and display pieces.
Zoisite belongs to the epidote group of minerals with the chemical formula Ca2Al3(SiO4)(Si2O7)O(OH) (calcium aluminium hydroxy sorosilicate). It can be found in a variety of colors including green, pink, brown, yellow, grey, white, blue, purple or colorless. The color it bears depends on the ion substitutions within the crystal lattice. For example, thulite is a pink variety of zoisite that gains its pink color from manganese substituting for calcium within the crystal lattice, and tanzanite is a blue-violet variety of zoisite that gains its color from the substitution of vanadium. Zoisite was originally known as saualpite.
