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Roman Black: Resin Soot from a Vaulted Chamber, for Ink and Fresco (Vitruvius)
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Charlie

14. Novemba 2026DE
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Roman Black: Resin Soot from a Vaulted Chamber, for Ink and Fresco (Vitruvius)

Vitruvius's Roman way to make black: burn resin in a small closed furnace whose smoke vents into a smooth vaulted chamber, sweep the soot off the walls, and work it with gum for writing ink or with size for fresco. Two quick substitutes: pounded pitch-pine charcoal, or roasted wine lees.
Kati
A day of burning, plus sweeping

Maagizo

1

Three Roman blacks

Inapakia daftari la Jupyter…
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Read the Ten Books

"A place is built like a Laconicum, and nicely finished in marble, smoothly polished."
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Build the soot chamber

Build a small vaulted chamber with smooth inner walls (he finished it in polished marble; we use smoothly plastered brick). In front of it build a small furnace with vents leading into the chamber and a stokehole that closes tightly so no flame escapes.

Vifaa kwa hatua hii:

TofaliTofali1 kipande
UdongoUdongo1 kipande

Zana zinazohitajika:

Mwiko wa mwashiMwiko wa mwashi
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Burn the resin

Put resin in the furnace and close the stokehole. The fire drives the soot through the vents; it settles on the walls and the curved vault.

Vifaa kwa hatua hii:

Utomvu wa MsonobariUtomvu wa Msonobari1 kipande
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Gather the black

When cool, sweep the soot off the walls and vault. Work some of it with gum for writing ink; mix the rest with size for wall painting.

Vifaa kwa hatua hii:

Gundi ya Mubaruti (Gum Arabic)Gundi ya Mubaruti (Gum Arabic)1 kipande
Gundi ya ngozi ya wanyamaGundi ya ngozi ya wanyama1 kipande

Zana zinazohitajika:

ManyoyaManyoya
Chupa ya KiooChupa ya Kioo
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Makeshift blacks

Without a chamber: burn pitch-pine shavings and splinters to charcoal, put them out, and pound them in a mortar with size. Or dry wine lees, roast them in an oven, and grind them with size: the better the wine, the nearer the colour to India ink.

Vifaa kwa hatua hii:

Mashapo ya divaiMashapo ya divai1 kipande
Gundi ya ngozi ya wanyamaGundi ya ngozi ya wanyama1 kipande

Zana zinazohitajika:

Kinu na mchi wa jiweKinu na mchi wa jiwe
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Troubleshooting

Roman black troubleshooting.

Flow

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History and honest limits

From Vitruvius, **The Ten Books on Architecture**, translated by Morris Hicky Morgan (1914), Book VII, Chap. X (checked on the archive.org scan vitruviustenbook00vitruoft, pp. 217-218). He gives no sizes; the brick chamber and the heads are ours.

Vifaa

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Zana Zinazohitajika

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CC0 Umma Wote

Mchoro huu umetolewa chini ya CC0. Uko huru kunakili, kubadilisha, kusambaza, na kutumia kazi hii kwa madhumuni yoyote, bila kuomba ruhusa.

Saidia Mtengenezaji kwa kununua bidhaa kupitia Mchoro wao ambapo wanapata Kamisheni ya Mtengenezaji iliyowekwa na Wachuuzi, au unda marudio mapya ya Mchoro huu na uiunganishe kama kiungo katika Mchoro wako kuchangia mapato.

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