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2. Pontypool japan - Wikipedia

   en.wikipedia.org/wiki/Pontypool_japan

   In the late 17th century, during his search for a corrosion-resistant coating for iron, he developed a recipe that included asphaltum, linseed oil and burnt umber. Once applied to metal and heated the coating turned black and was extremely tough and durable. Pontypool is in a steep valley in South Wales, surrounded by coal and iron working.

3. Umber - Wikipedia

   en.wikipedia.org/wiki/Umber

   Umber is a natural earth pigment consisting of iron oxide and manganese oxide; it has a brownish color that can vary among shades of yellow, red, and green. [ 3 ] : 39 Umber is considered one of the oldest pigments known to humans, first seen in Ajanta Caves in 200 BC – 600 AD.

4. List of inorganic pigments - Wikipedia

   en.wikipedia.org/wiki/List_of_inorganic_pigments

   Raw umber (PBr7): a natural clay pigment consisting of iron oxide, manganese oxide and aluminum oxide: Fe 2 O 3 + MnO 2 + n H 2 O + SiO 2 + Al 2 O 3. When calcined (heated) it is referred to as burnt umber and has more intense colors. Raw sienna (PBr7): a naturally occurring yellow-brown pigment from limonite clay. Used in art since prehistoric ...

5. Pigment - Wikipedia

   en.wikipedia.org/wiki/Pigment

   Raw sienna and burnt sienna came from Siena, Italy, while raw umber and burnt umber came from Umbria. These pigments were among the easiest to synthesize, and chemists created modern colors based on the originals. These were more consistent than colors mined from the original ore bodies, but the place names remained.

6. Ochre - Wikipedia

   en.wikipedia.org/wiki/Ochre

   Ochre is a family of earth pigments, which includes yellow ochre, red ochre, purple ochre, sienna, and umber. The major ingredient of all the ochres is iron(III) oxide-hydroxide, known as limonite, which gives them a yellow colour.

7. Solo Stove review: This smokeless fire pit lives up to the hype

   www.aol.com/solo-stove-bonfire-review-181555114.html

   It’s smokeless — as long as you follow the directions. I'll admit it: My first fire in the Solo Stove didn’t go well. I tried to use it the same way as other fire pits, building a big, log ...

8. Talk:List of Crayola crayon colors - Wikipedia

   en.wikipedia.org/wiki/Talk:List_of_Crayola...

   Colors like maize and blue-green and burnt umber, which — in Crayola form, at least! — no longer exist. It's a weirdly evocative nostalgia-trip, and I highly endorse it. The fact that Wikipedians managed to locate a hex code for each of these colors is also really impressive.

9. Mummy brown - Wikipedia

   en.wikipedia.org/wiki/Mummy_brown

   Mummy brown, also known as Egyptian brown or Caput Mortuum, [1]: 254 [2] was a rich brown bituminous pigment with good transparency, sitting between burnt umber and raw umber in tint. [3] The pigment was made from the flesh of mummies mixed with white pitch and myrrh.