Selenium

Discovered
1817
Density
4.8 g/cm3
Melts
219 °C
  • 427 °F
  • 493 °K
Boils
685 °C
  • 1265 °F
  • 958 °K

Contributed by collector no. 4

Countless small pellets of Selenium in its often-found form that almost looks like red blood cells.

Contributed by collector no. 4

The Chalcogen group: Oxygen , Sulfur , Selenium , and Tellurium

Contributed by Cyrenia

Contributor writes, “Selenium billion from Luciteria, from top to bottom the sample reads: Se34 / Selenium / ONE OUNCE/ 99.9% PURE with the Luciteria Science atom logo below it. The packaging has “Exotic Bullion Series” in italics below the main Luciteria logo, and at the bottom their website, luciteria.com. The packaging also has several mathematical formulas and equations on it, but the contributor does not recognize any of them.”

Contributed by @plazmatter0430

The two commonly encountered forms of Selenium: gray pellets and red powder in separate bottles.

Contributed by @plazmatter0430

Multiple gray Selenium ingots, covered in small surface holes likely caused by bubbles when the ingots were cooling.

Contributed by collector no. 2

Glassy chunks of Selenium

Contributed by collector no. 3

The Chalcogen group: Oxygen , Sulfur , Selenium , Tellurium

Contributed by collector no. 2

Chunks of Selenium in a clear container with a translucent lid

Contributed by collector no. 2

Small chunks of Selenium in a bottle

Contributed by the site creator

Tiny, lab grown crystals of an unusual, dark blood red allotrope (form) of Selenium. This sample has the monoclinic crystal structure. Photos of this form are rare. This allotrope is different from the amorphous bright red powder that precipitates from reactions that make elemental Selenium.

Want to contribute media?

Join the official Discord server

Lt

Livingtoe.com © 2023-2024 The LivingToE creator.
Listings, thumbnail photos, and products © the seller.
Not affiliated with the sellers or listings on this site.
By using this website, you agree to the terms.