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1.3" Pink Thulite (Manganian-Zoisite) Formation - Mjønes, Norway
This is a 1.3" wide pink thulite specimen collected from a roadcut/tunnel construction in Mjønes, Norway.
About Thulite
Thulite is a pink manganese-bearing variety of zoisite named after the ancient Greek and Roman mythical name for Scandinavia (Thule). Its type locality is in Vestfold og Telemark county in southern Norway, though it has also been found in the United States, Australia, and New Zealand. It frequently occurs with calcite as veins and fracture fillings in numerous kinds of rock.
Thulite is a pink manganese-bearing variety of zoisite named after the ancient Greek and Roman mythical name for Scandinavia (Thule). Its type locality is in Vestfold og Telemark county in southern Norway, though it has also been found in the United States, Australia, and New Zealand. It frequently occurs with calcite as veins and fracture fillings in numerous kinds of rock.
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.
