Wednesday, December 10, 2014

Smithsonian Gemstones

The National Museum of Natural History is located on the National Mall in Washington, D.C. It is the most visited natural history museum in the world, and most visited museum in North America.
Opened in 1910, the museum on the National Mall was one of the first Smithsonian buildings constructed exclusively to hold the national collections and research facilities.

The museum's collections total over 126 million specimens of plants, animals, fossils, minerals, rocks, meteorites, and human cultural artifacts.

Dom Pedro aquamarine, the world's largest faceted aquamarine, cut into an obelisk standing 13.75 inches tall and weighing 10,363 carats (4.6 pounds)

Uncut diamond crystal from Arkansas.

Cindy Chao Black Label Masterpiece Royal Butterfly Brooch (2009), composed of 2,328 gems, including sapphires, diamonds, rubies, and tsavorite (green) garnets, for a total weight of 77 carats

Liddicoatite with a zoned green and pink interior from Antsirabe, Madagascar.
Elbaite candelabra (Tourmaline family)


Janet Annenberg Hooker fancy yellow diamonds.

Beryl with Quartz - Blue beryl crystal on microcline.
Pear-cut ametrine from Brazil



The Rosser Reeves ruby

Calcite with Pyrite - From Brush Creek mine, Reynolds County, Missouri.

263-carat diamond necklace and diadem (tiara) given by Napoleon to Empress Marie-Louise
Octagonal-cut amethyst

A round brilliant-cut citrine.

Clinohumite is a magnesium silicate commonly found as tiny indistinct grains. However, large euhedral crystals are sought after by collectors and can be cut into beautiful gemstones.


See ----->http://pennystockjournal.blogspot.ca/2014/08/gems-of-smithsonian.html
See ----->http://pennystockjournal.blogspot.ca/2013/12/smithsonian-gemstones-ii.html
See ----->http://pennystockjournal.blogspot.ca/2014/10/curse-of-hope-diamond.html
http://www.mnh.si.edu/