Well,there are a lot of ways you can get silver essences.You can get them about anywhere.One place you can get them is if you mine in Cowboy Junction and there are a lot more places but this is one.Hope this helps.
If You go to the Uncharted Isle where Gonk lives. pull out 4 weeds at a time then at the end of that you get 2 diamonds, I've been doing it at it takes ages because they have to grow back, i haven't found any other way "/
when you have finished the game and your island if you use the metal detector it should find them (i finished the games in 2 days)
It is at the place where you first start, in the pink picnic table. That's where I found it. There could be more answers, but hope I helped for that!
u either go to the sciene lab out side of it and get the ray gun and swop some or get sci-fi things and swop it in the ray
go to trevor island and eqip the metsl detector
Which diamon? The essencce? If so, you can get them from the patios and benches. If not, IDK. ( I donk know )
Where to find magic 8-ball I'm my sims kingdom
ask the sims around and u will find out
In rocket reef
cowboy junction
cutopia
The Unarcheted Isle. That is Where you Will Find Bones. :)
on create-a-sim chose the button with people's silhouettes next to your Sim's picture and look for the Sims that have the green diamonds next to them
You will find him in the Zoo. There will be a cut-scene.
the cowboy island
You go to the mayor Ellen