Specifications
Description
Locality: Minas Gerais, Brazil
Vivianite is named after John Henry Vivian (1785–1855), a Welsh-Cornish mineralogist from Truro in Cornwall who discovered the species. Classic early specimens came from Wheal Kind at St Agnes and other Cornish mines.
Fresh vivianite is colourless or very pale green. As its iron oxidizes, the crystals darken through blue, greenish blue and indigo, and finally to black, which is why many specimens are deep blue-green to nearly black. It is also very soft, only 1.5 to 2 on the Mohs scale, with a perfect cleavage, and thin crystals can even bend.
Vivianite forms as a secondary mineral in the oxidized zones of metal ore deposits and in complex granite pegmatites. It also grows in lake sediments, bog-iron ores and peat bogs, and can replace organic material in fossil bones. In Brazil, the Handbook of Mineralogy lists it from the Énio pegmatite mine near Galiléia, Minas Gerais.
This one of a kind Vivianite specimen from Brazil features deep blue-black to greenish-black bladed crystals partially embedded in a warm ochre-brown matrix. The glossy crystal faces show strong linear striations, sharp edges, and naturally layered growth, creating a dramatic contrast against the earthy, botryoidal-textured host rock. Small green-blue flashes can be seen in some areas, adding depth and character to this uncommon Brazilian specimen.
Collectors will appreciate this piece for its striking dark Vivianite blades, rugged natural matrix, and sculptural presentation. The combination of lustrous black-green crystal growth with iron-rich brown texture gives the specimen a bold, raw aesthetic while still showcasing the delicate bladed habit Vivianite is known for.
Vivianite is named after the British mineralogist John Henry Vivian, who discovered the species. It is commonly associated with emotional healing, heart-centered awareness, compassion, renewal, patience, and gentle transformation.
Chemical Composition: Fe2+3(PO4)2·8H2O
Quantity: 1pc
With this product, you will get the actual stone in the photograph.