Vivianite - Specimen natural shell sheet These bands are chalcopyrite inclusions

These bands are chalcopyrite inclusions that formed during an earlier stage of mineralization within the hydrothermal system

and occasionally in white

Sakha Republic (Yakutia)

is known for its vibrant shades of green

Approximate Weight of 1 piece: 224g

Vivianite - Specimen natural shell sheet These bands are chalcopyrite inclusionsMined from: Minas Gerais, Brazil Description: 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