Strontianite
Strontianite
– Sr(CO3)
Fluorite
Talc (1)Diamond (10)
Softer than glass. A steel knife scratches it.
Did you know?
The red in fireworks comes from strontium, the metal first found in this mineral. Strontium salts burn a deep, pure crimson, so every red starburst overhead and every red emergency flare owes its color to the element named for a small Scottish village.
