Blue Vivianite pigment to handmade watercolor paint
Channel: Dirty Blue Tube
Date: 2023-02-10

This dark, deep blue Vivianite pigment is a wonderful version that gives a denim like, slightly sparkling and granulation watercolor paint. 

Also known as blue ochre, Vivianite is an inorganic mineral pigment, chemically it's hydrated iron phosphate and it can give a deep, indigo like mass tone. In its washes it's visible that the blue leans to the warmer side. This is also visible in the graph that the spectrometer gives me in the video. 

Vivianite is named after the French mineralogist, Pierre-Yves Vivian, who first described the mineral in 1817. Although it is not a major economic mineral, Vivianite has been used as a source of iron and phosphate in some areas.

Between the muller and the plate, this pigment needed some heavy mulling for it to be fine enough for a genuine mineral watercolor paint. Not that this is still far courser than any synthetic pigment. But that's what gives it its unique feel and handeling qualities as a mineral pigment. 

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