Charlesite is a sulfate mineral of the ettringite group. Charlesite was named in 1945 after Dr. Charles Palache mineralogist and professor at Harvard University for his work on minerals. This mineral is extremely rare, and when it is found it is often in crystal (but not gem) form. Its crystals are soft hexagonal, that can vary in color. Colors can range from clear to white, or even a pale yellow or pink. The brittle mineral's Mohs hardness is 2.5 with a specific gravity of 1.79. Though transparent to the eye the mineral has a white streak. (Wikipedia).
Windsor Castle - Garter Ceremony (1968)
Each year, the Order of the Garter attracts through the streets of Windsor. Queen Elizabeth, Queen Mother and Prince Philip are members of the Order. After the procession, Prince Charles is also a member. Click here for more videos about Prince Charles: https://www.youtube.com/playlist?li
From playlist PRINCE CHARLES
Charles University Chapter of SIAM - AN17
At the 2017 SIAM Annual Meeting, Irene Fonseca gave the Past President’s Address as she spoke about the future of SIAM and SIAM’s international student chapters. During her address she presented videos made by SIAM student chapters from all over the world! Watch the video from Charles Univ
From playlist SIAM Conference Videos
Extra ! Prince Charles Souvenirs (1969)
The royal family is an economic factor in England Every year a lot of souvenirs are made. Prince Charles has also souvenirs, such as coins, chairs or glasses. Click here for more videos about Prince Charles: https://www.youtube.com/playlist?list=PL3kG3TM8jFKgx04WBg837FkYYhxxqMsgC 90,000
From playlist PRINCE CHARLES
Prince Charles In Wales (1969)
Prince Charles visits Wales. He speaks with citizens. Then he takes a walk through the forest. Click here for more videos about Prince Charles: https://www.youtube.com/playlist?list=PL3kG3TM8jFKgx04WBg837FkYYhxxqMsgC 90,000 historic films, all SEARCHABLE on YouTube at: http://www.youtub
From playlist PRINCE CHARLES
Prince Charles 3 Years Old (1951)
Prince Charles goes on a walk with his Nanny in the park. His Parents are not with him, but they wait in the Buckingham Palace. There the family celebrates the third birthday of Prince Charles. Find more videos about Prince Charles: https://www.youtube.com/playlist?list=PL3kG3TM8jFKgx04
From playlist PRINCE CHARLES
Prince Charles At House Of Lords (1970)
Prince Charles is given his place in the House of Lords in a Ceremony. Only the second time of hundred years that a Prince of Wales take his seat. Click here for more videos about Prince Charles: https://www.youtube.com/playlist?list=PL3kG3TM8jFKgx04WBg837FkYYhxxqMsgC 90,000 historic fil
From playlist PRINCE CHARLES
Le "Large Hadron Collider" (français)
un apreçu du grand collisionneur de hadrons (LHC) et de son programme de recherche
From playlist Français
Lagrange Bicentenary - Jacques Laskar's conference
Lagrange and the stability of the Solar System
From playlist Bicentenaire Joseph-Louis Lagrange
Royal Children Join Britannia (1955)
Queen Mother celebrates her Birthday at the Window from Clarence House. Princess Anne and Prince Charles celebrates with her. The Royal family goes on holiday on the yacht “Britannia”. They take a car to the port. Find more videos about Prince Charles: https://www.youtube.com/playlist?
From playlist PRINCE CHARLES
Special ! Prince Charles - Pilot (1969)
Prince Charles looks at a propeller plane. Then he gets on the plane and fly the airplane. Later he lands this again. Click here for more videos about Prince Charles: https://www.youtube.com/playlist?list=PL3kG3TM8jFKgx04WBg837FkYYhxxqMsgC 90,000 historic films, all SEARCHABLE on YouTub
From playlist PRINCE CHARLES