The name Sphalerite is from the Greek word “sphaleros” which means deceiving or treacherous. This name is in response to the many different appearances of Sphalerite & because it can be challenging to identify in hand specimens. Names for Sphalerite used in the past or by miners include “zinc blende,” “blackjack,” “steel jack,” & “rosin jack.” 


Dolomite is also a common mineral in hydrothermal veins. There it is often associated with Barite, Fluorite, Pyrite, Chalcopyrite, Galena or Sphalerite. In these veins it often occurs as rhombohedral crystals which sometimes have curved faces. 🗿


The sparkles in this piece, in my opinion, are it's best feature. The contrasting black/grey with the white/translucent crystals really captures attention. This piece is truly breathtaking & looks great when displayed with light. ✨


Weight: 140g
Size: 3"x2"x1"

Sphalerite on Dolomite