Brilliant and Vibrant Jadeite——Jadeite Jade
Introduction Jadeite Jade, known in Taiwan as “輝玉”, is commonly referred to as “硬玉” or “翡翠” in China. Because gemstone-quality […]
Knowledge Column
In order to let more people know about polishing and grinding, Honway update the knowledge column from time to time.
Chinese Cultural Essence in Jade —— Nephrite
Introduction In mineralogy, jade is categorized into nephrite and jadeite. Jade has historically been seen in the West as a
Measuring the age of meteorites——Lutetium
Introduction Lutetium is a relatively rare chemical element. French scientist Georges Urbain, Austrian mineralogist Carl Auer von Welsbach, and American
The radiant light of rare elements —— Promethium (Pm)
Introduction Promethium (Pm) is element number 61 in the periodic table, a rare, radioactive element. Promethium is artificially synthesized and
Shining In the Fields of Optics and Medicine ── Europium
Introduction Europium (Eu) is found in most rare-earth minerals, but its separation was difficult, so it wasn’t isolated until the
A Truly Hard-To-Obtain Element ── Dysprosium
Introduction Dysprosium was first isolated in 1886 by French chemist Paul Émile L. de Boisbaudran while studying erbium oxide in
Another Indistinguishable Twin – The Green-Emitting “Praseodymium”
Introduction In 1874, P. T. Cleve demonstrated that didymium was a mixture of at least two elements. It wasn’t until
The Famous Twin Rare Earth Element Mystery – The Powerful “Neodymium” Magnet
Introduction Neodymium was discovered in 1885 by Austrian chemist C. A. von Welsbach in Vienna. Interestingly, the name “Neodymium” comes
MRI Contrast Agents Containing Gadolinium: Medical Warnings Issued
Introduction Gadolinium was discovered in 1880 by Jean Charles G. de Marignac and named after gadolinite, the mineral from which
“Samarium” – Though Lacks a Legendary Story, Its Magnetic Power Ranks Just Below Neodymium Magnets
Introduction Samarium was first discovered in 1879 by French chemist Paul-Émile L. de Boisbaudran from the rare earth mineral samarskite,
