#gabrielite

[materialsscienceandengineering]

Minerals: Gabrielite

A rare thallium sulfosalt mineral, gabrielite’s chemical formula is usually written as either Tl6Ag3Cu6(As,Sb)9S21 or Tl2AgCu2As3S7 - containing antimony or arsenic, copper, silver, sulfur, and thallium. 

First reported in the early 2000s, it was named for Walter Gabriel, a Swiss mineral photographer. Gabrielite has only been found in Switzerland.

This mineral crystalizes in the triclinic crystal system and is usually black or gray in color with a metallic luster. It is relatively soft, with a Mohs hardness of 1.5-2 and has the potential for thermoelectric properties, like other sulfosalts. 

For more in depth information about gabrielite, check out what mindat.org, webmineral.com, and handbookofmineralogy.org have to say about it.

Sources/Further Reading: (1 - image 1) (2 - image 3) (3 - image 4) ( 4 ) ( 5 )

Image 2.

[soosoowriterly]

For the record, the legal luminary who secured victory for Gov. Hope Uzodinma, at the Supreme Court is a proud Gabrielite, Mr. Damian Dinshiya Dodo SAN, OFR, fciarb, FNIALS, an old boy of the prestigious Mount Saint Gabriel's Secondary School, Makurdi, Benue State. #MSG #Gabrielite #AngusFraserBoys #FortitudoDei #InGodOurStrength https://www.instagram.com/p/B7a2cxpl6y5/?igshid=1jccsm6p6qxhr

[margiesmustreads-blog]

I love to see Gabriel out in the wild!! Gabriel’s Inferno by Sylvain Reynard spotted at Paragraphs Bookstore on South Padre Island. A long way from Toronto! #GabrielsInferno #ILoveProfessorEmerson #Gabrielite #ReadAllTheBooks #MyProfessor (at Paragraphs On Padre Boulevard - More Than a Bookstore)