I used Yanflys Event Copier and his Mining System.
http://yanfly.moe/2018/07/20/eventing-a-mining-system-rpg-maker-mv/
Build Everything according to the Code given on his page.

https://mega.nz/#!zz5ATIaY!DUQm6F6anux4zty1SKXX-Bmu6Rfk0YBb87Vu6WRQLJ0
WIth diffrent sorts of Ores
https://mega.nz/#!7qhGVQIR!HytIgtxIIeMT4P2KlCptTJpT0LPmVZQdGjl6FcrpFU0
When I mine one all other get also smaller i downgraded from1.6.1 to 1.5.2 and still that is happening so any idea how ot fix that?