|Arsenopyrite is arsenic iron sulfide, which is the same type of mineral as pyrite (fool’s gold, iron sulfide), but with a heavy addition of arsenic. |
If one attempts to heat or in any way alter the mineral, a strong garlic odor of arsenic will be produced as lethally toxic, corrosive and carcinogenic vapors are released.
|Torbernite prism shaped green crystals form as secondary deposits in granitic rocks, and are composed of uranium. It is formed through a complex reaction between phosphorous, copper, water and uranium.|
Radon gas is slowly released from uranium decay.
|Stibnite is antimony sulfide. The shining metallic crystals of this unstable compound were once fashioned into magnificent eating utensils. |
Stibnite’s antimony laced crystals killed a number of people before it became known that use of the mineral was causing food poisoning of the worst kind.