With a height of 3,776 meters (12,385 ft), Mount Fuji is the highest mountain across the Japanese archipelago. Its size is the result of volcanic forces that have melded three volcanoes into one: Komitake, Ko-Fuji, and the current Shin-Fuji.

Over the course of the last several hundred thousand years, each volcano has formed out of the remains of the last with Shin-Fuji becoming active roughly 10,000 years ago. But this mountain, for all its geologic enormity, is far more than a work of nature—the mountain is revered across Japan as a site of religious pilgrimage and a calling card of the nation’s culture.

This bracelet contains 11 igneous beads formed from material released during the 1707 Hōei eruption, the last confirmed eruption of the volcano. The Fuji lava beads are complimented by smaller lava rock spacer beads (non-Fuji material), making the bracelet beads all volcanic rock. It is a fantastic piece for a rock lover with some serious heft and contains the most Fuji material out of any jewelry item in our shop.

The full bracelet measures 8" in length (~17.5cm) though it will stretch a bit further. If you need a larger or smaller size, please let us know. As pictured, the size works well for anyone.

As with our other bracelets, the Mega Mount Fuji Bracelet comes in a gray gift box with a small information card that provides background on the material and serves as the certificate of authenticity.

The modern Mount Fuji is actually three volcanoes in one: Komitake, Ko-Fuji, and Shin-Fuji. Over the course of the last several hundred thousand years, each volcano formed out of the remains of the last with the latest becoming active roughly 10,000 years ago.

Shin-Fuji went through several stages of development which included basaltic flows covering large areas to the north, west and southwestern foothills. The stratovolcano's symmetrical cone has served as an inspiration for artists for centuries and more recently for scientists studying the geometrical evolution of volcanoes.

The shape of a volcano is primarily determined by hydraulic resistance to the flow of magma in a porous medium. Mount Fuji in particular is an excellent example of this process.

The Japanese artist, Katsushika Hokusai was also an admirer of Mount Fuji. His popular series of landscape prints, 富嶽三十六景 or Thirty-Six Views of Mount Fuji, show the mountain across the range of seasons and from many different views.

The image here comes from this collection. The print is known by several names, including "Fine Wind, Clear Morning," and "風快晴." The slope of the mountain's flank is nearly a perfect fit for the porous flow theory.

"From around the age of six, I had the habit of sketching from life. I became an artist, and from fifty on began producing works that won some reputation, but nothing I did before the age of seventy was worthy of attention. At seventy-three, I began to grasp the structures of birds and beasts, insects and fish, and of the way plants grow. If I go on trying, I will surely understand them still better by the time I am eighty-six, so that by ninety I will have penetrated to their essential nature. At one hundred, I may well have a positively divine understanding of them, while at one hundred and thirty, forty, or more I will have reached the stage where every dot and every stroke I paint will be alive. May Heaven, that grants long life, give me the chance to prove that this is no lie."

Katsushika Hokusai (1760–1849)

Mount Fuji has been inactive for three centuries, but its current peace belies a fiery past. Its most recent eruption was the Hōei eruption, a year-long event triggered by an 8.7 earthquake that lasted from December 16, 1707 to February 24, 1708. The ashfall from this eruption was immense, with over 800 million cubic meters (28,200,000,000 cubic ft) released.

This followed other destructive eruptions. After the violent 864 Jōgan eruption, Emperor Seiwa’s government ordered Buddhist priests to be stationed around Mount Fuji, reading sutra holy texts to keep the volcano at bay.