Pirit.

As rising self esteem, opening your possibles, fighting complex of a inferiority,helplessness, poisoning emotions, strong angry, giving force, as creating for kindness to itself and other, as inside straining fighting and stomach colics.

King topaz.
As fighting depressions, angry managing, self dissorderiung, as giving a trust for self realization, happiness, changing mood, as in apply his to the body, his sharp end directed up, as this directing energy current to the light.

Resume.
Yellow stones are keeping in pockets, as his vibration rising to the belly, plexus, where energy needing, or apply stone to this side or rise effect with massage, but if carry on the neck, as his sun light spreading through breast cell, and breath ways to the heart, rising a feeling for warming heart, and happy, if put  under pillow on a sleep time, as he will send in your sense a sun energy, feels clearing, minds, fighting disorders,breaking in digestive system.