Five examples of failed experiments that produced valuable information

The following examples of failed experiments that produced valuable information

1) Bubble Wrap: The scientists were trying for  trendy new textured wallpaper, they failed miserably ,however the new wrap was a breakthrough in packing industry

2) Pacemaker: During development of a  heart rhythm recording device, Greatbach  pulled out the miss sized small resistor which sounded like a human heartbeat and thus leads to development of pacemaker

3) Synthetic Dyes are also discovered during synthesis of antimalarial drug

4) Radioactivity : it was also a serendepity

5) Discovery of penicillin.

answer is: naturally occurring solid, inorganic compound or element is mineral.

minerals usually have crystalline form, that means than crystal constituents (atoms, molecules or ions) are arranged in a highly ordered microscopic structure, forming a crystal lattice that extends in all directions.

for example magnetite is a mineral of iron oxide (fe₂o₃).

calcite is a carbonate mineral and the most stable polymorph of calcium carbonate (caco₃).

dolomite is an   carbonate mineral composed of calcium magnesium carbonate (camg(co₃)₂).