Quick Answer. HowStuffWorks explains that food poisoning often occurs when a person eats spoiled food. Common symptoms of food poisoning are stomach pain, diarrhea, nausea, vomiting and cramping.
Confusion continues over coolant colors for cars. Of course, there is still the good old green stuff, but there is also orange, yellow (gold and amber), red, pink, blue and, if you mix the wrong things together, brown. Despite the rainbow of colors, all antifreeze starts out colorless.
Aurichalcite has a beautiful intense green-blue color. Most specimens are composed of tiny needles which may rub off and leave a blue residue of tiny crystals on a surface. Because of its fragility, specimens should be handled as little as possible and washing them with water is not recommended as this will ruin them.