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Vivianite blue First class

Vivianite blue First class

Regular price $23.90 USD
Regular price Sale price $23.90 USD
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Vivianite First class - "blue earth", "blue iron bog ore" natural pigment powder

Vivianite First class differs from other types in its deep and intense blue color. This color is achieved through manual sorting of raw materials (stones), and 3-stage cleaning, which also includes a flotation process.

Chemical description: Iron phosphate . The mineral is amorphous.

Chemical formula: Fe²⁺₃ (PO₄) ₂ 8H₂O

Alkali resistance: 3

Lime Resistance: 3

Acid resistance: 1

Light-resistance: 8


Suitability Acrylic, Oil, Tempera, Watercolor / Gouache

Color: saturated blue 


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