|Berlin, Stockholm—Martin Heinrich Klaproth, Jöns Jacob Berzelius elements|
- Zirconium minerals are mentioned in the Bible
- jargoon, jacinth, hyacinth, ligure
- although for ligure it’s impossible to say.
- Martin Heinrich Klaproth reduced jargoon
- to zirconium oxide in 1789 and announced
- that he had found a new element, zircon earth or zirconia.
- Humphry Davy failed to reduce the oxide to a metal
- using electrolysis in 1808
- but gave it the name zirconium.
- Jöns Jacob Berzelius heated potassium hexafluorozirconate
- with potassium metal in an iron tube
- to obtain a black powder of impure zirconium.
Atomic number 40
- Beware: Dust or small grains of zirconium
- can ignite on warm days.
- Zirconium oxide is used in strong ceramics
- to resist heat and corrosion.
- Zirconium makes a good radiation shield
- used in nuclear-powered ships and subs.
- Cut cubic zirconium (zirconium oxide)
- resemble diamonds.
- The seventh stone on the hoshen,
- the breastplate of judgment
- The tribe of Dan, the eagle
- The color of smoke,
- possibly blue or black,
- or dark red, like carbuncle
- The color of sparks in smoke
- The gem named with a lost Hebrew word
- maybe based on a place, also lost