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we introduce ourselves: Communications History


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Nice to Know

The history of the Gold Ruby

7th century before Christ

instruction of a by gold red colored glass (red corals) in the clay table library of Ashurbanipal in Ninive - translated by R. C. Thompson in "A Dictionary of Assyrian Chemistry and Geology", Oxford 1936

about 250

"Lycurgus Cup" (Roman art in the British Museum, London), a figurative cage cup consisting of dark gold ruby, 16,5 cm high


Antonio Neri from Florence, seven books about the art of making glass, book seven chapter 129: "…to make a transparent red color…" The pharmacist Dr. A. Cassius from Hamburg is making a gold purple (a fine spread precipitate of colloidal gold on tin acid gel)


Johann Kunckel von Löwenstern succeed a gold ruby production in a manufactory near the town Potsdam, he is writing about it on page 192 in his "Ars vitraria experimentalis"


ruby glass composition in the glass factory in Zechlin, one Dukate is the gold basis (a composition of Kunckel), published from Robert Schmidt on page 63 in "Brandenburgische Gläser", 1914 Kunckel is writing, that his laboratory assistants goes and looses the gold ruby composition, other glass factorys can melt the gold ruby now (for instance at the court of Bayreuth), therefore got the gold ruby to the south of Germany

about 1750

the brothers Zänker from Bohemia (producers of paste) are making gold ruby


Mr. Pohl from the Josephinenhütte in Schreiberhau (Giant Mountains) is publishing a ruby glass composition on page 743 in "Polytechnisches Zentralblatt"

about 1890

Michael Eisch from the Bavarian Forrest is melting a gold ruby in Reichenbach at the company "Schuster & Wilhelmy"


Gustav Häubner from the Farbglashütte "Häubner & Dobschall" in Reichenbach is melting a gold ruby according to the following composition:

  • 120 kg crystal K
  • 80 kg batch K
  • 28 kg pink
  • K fragments
  • 12 Dukaten
  • 1,5 g Argentum Nitrum
  • 6 g extract
  • 2 kg pink mixture
  • 600 g yellow mixture
  • 1,5 kg paste
  • 600 g antimony oxide
  • 600 g tin salt


Professor Hohlbaum from the technical college of glass inHaida (Bohemia) is describing the gold ruby on page 126 in "Zeitgemäße Herstellung, Bearbeitung und Verzierung des feineren Hohlglases"


Paul Beyersdorfer shows electron microscopic of coloring gold particles in the book "Glashüttenkunde"


Rudolf Schmidt (Osram Weißwasser) describes the production of the gold ruby from modern view on page 348 in "Die Rohstoffe zur Glaserzeugung" and on page 188 in "Der praktische Glasschmelzer"


the Farbglashütte Reichenbach GmbH melts following colors with gold:


  • Gold ruby 002 RW
  • Gold ruby dark 003 RW
  • Gold ruby extra 005 RW
  • Aurora reddish 006 RW
  • Aurora yellowish 008 RW
  • Violet blue 010 RW
  • Heliotrop 011 RW
  • Amethyst reddish 012 RW
  • Amethyst bluish 013 RW
  • Hyazinth 014 RW
  • Gold topaz 019 RW
  • Brillant gold 212 RW
  • Iris yellow 218 RW
  • Brillant ruby 231 RW
  • Wine red 232 RW


  • Old rose 150 RW
  • Soft rose 151 RW
  • Soft violet 152 RW
  • Sahara 162 RW
  • Ochre yellow 164 RW
  • Apricot 168 RW
  • Red violet 099 RW
  • Old rose 150 RW
  • Soft rose 151 RW
  • Soft violet 152 RW
  • Sahara 162 RW
  • Ochre yellow 164 RW
  • Apricot 168 RW

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