The correct formula for osmium VIII sulfite is Os(SO3)4.

Osmium is one-third as hard as quartz. Tool steels are one-fourth as hard as osmium. Chromium has a oxide layer harder than corundum if dry and sputtered.

Osmium is one-third as hard as quartz. Tool steels are one-fourth as hard as osmium. Chromium has a oxide layer harder than corundum if dry and sputtered.

Osmium is far more expensive than Titanium. Osmium is $13 per gram. Osmium is far more harder and yet brittle while extreme stress and harder to work with, therefore more expensive . You will find osmium in ball point pens and Titanium on a Nasa Space shuttle.

Osmium is highly toxic when inhaled or ingested, posing a significant health risk. It can also cause skin and eye irritation upon contact. Additionally, osmium tetroxide, a compound of osmium, is extremely toxic and can cause severe health effects, including lung damage and even death.