Selenium (No. 1073-10312016)

Kateřina Coal Mine, Radvanice, Trutnov, Hradec Králové Region, Bohemia, Czech Republic

50° 33' 45'' North , 16° 3' 52'' East

1.5 × 3 × 1.5 cm

Needles of native selenium on clear crystal matrix of Molybdite. There is also a few isolated needles, very tiny, orange in color that may be Greenockite. Also, there are three or four sprays of radiating acicular crystals, white in color, visible only with microscope, possibly Hoelite?

 

Formula: Se

Strunz: 1.CC.10

Hardness: 2.0

Color: Gray to grayish black

System: Trigonal

 

BOX V

Done