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Latest Orpiment Stories

2012-11-13 10:23:22

Traditional Swedish bonad paintings can contain toxic substances such as arsenic, reveals new research from the University of Gothenburg, Sweden, in which painting conservator and conservation scientist Ingalill Nyström analyzed the paint and techniques used in the traditional painted wall hangings from southern Sweden. Previous research into bonad painting has always originated in the humanities, from an art/cultural history perspective. Bonad paintings are painted wall...


Latest Orpiment Reference Libraries

28_bfce34f08ce3e81b0ffd4c23cc23d43d
2005-05-26 08:34:39

Orpiment is a common monoclinic crystalline mineral - Chemical Composition: As2S3, arsenic trisulfide - Molecular Weight: 246.04 gm - Hardness: 1.5-2 - Optical refractive index: Biaxial (-), a=2.4, b=2.81, g=3.02 Orpiment is a mineral that is found world-wide, and occurs as a sublimation product in volcanic fumaroles, low temperature hydrothermal veins, hot springs and as a byproduct of the decay of another arsenic mineral, realgar. It takes its name from the Latin...

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Word of the Day
jument
  • A beast of burden; also, a beast in general.
'Jument' ultimately comes from the Latin 'jugum,' yoke.
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