Making Ultramarine Blue Paint from Lapis Lazuli Rocks

Added:

Crushing Lapis
Grinding Progress
Straining Pigment
Collecting Dust
Making Binder
Kneading Dough
Extraction Attempt
Extracting Blue
Final Pigment
Mixing Paint

Crushing Lapis

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Playing Section
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    Attempts to break down lapis lazuli using a hammer and towel.

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    Struggles with rock hardness and equipment limitations.

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    Plans to use polished rocks and aquarium gravel as easier sources.

Understanding the basic composition of lapis lazuli, specifically distinguishing between the desirable blue mineral lazurite and impurities like pyrite and calcite.
Familiarity with the fundamental components of paint, specifically the distinction between dry pigment (colorant) and binders (such as gum arabic for watercolors or linseed oil for oil paint).
Basic knowledge of physical separation techniques, such as grinding, mulling, and levigation (separating particles by density using water).
Historical context regarding the value and rarity of natural ultramarine blue during the Middle Ages and Renaissance, often surpassing the price of gold.
Exploring the 19th-century scientific breakthrough and chemical synthesis of 'French Ultramarine' by Jean-Baptiste Guimet, which democratized the color blue.
Investigating pigment degradation and conservation science, such as 'ultramarine sickness' where the pigment fades due to exposure to atmospheric acids.
Analyzing other historical, mineral-based pigment extractions, such as deriving malachite for greens or cinnabar for vermilion red.
Applying analytical chemistry techniques (such as Raman spectroscopy or X-ray diffraction) used by art historians to verify the authenticity of pigments in historical masterpieces.
138.6K views8.3Klikes42:50@JakeDontDrawOriginal Release: 2025-08-24

Ultramarine blue, historically the most expensive pigment costing more than gold during the Renaissance, is extracted from lapis lazuli through a labor-intensive process involving crushing the rock, separating the blue lazurite from impurities like pyrite, mixing with binding agents (pine rosin, beeswax, and gum mastic), and performing alkaline extraction to isolate the pure blue pigment; this traditional method yields a desaturated, transparent blue that differs from modern synthetic French ultramarine, which is more saturated and widely used today.