Ruthenium APEX Mineral

Ruthenium (Ru #44) is the next element on the periodic table for my APEX mineral collection.   

Wikipedia Ruthenium

Ruthenium Minerals - There are extremely few Ruthenium minerals.  It only exists in microscopic quantities combined with other platinoid metals (Iridium, Osmium, Platinum).  I gave up trying to get my APEX mineral for Ruthenium.

Ruthenium is exceedingly rare and its annual production is only about 20 tons.

Ruthenium  is one of the six Platinum Group Metals.  These are precious metals which have similar physical and chemical properties, and tend to occur together in the same mineral deposits.

Ruthenium and its minerals were unknown until modern times.

Ruthenium is primarily used to harden platinum and palladium for wear-resistant electrical contacts. 

Ruthenium plays no natural biological role.