Rocks & Minerals Book

Overall they are great learning tools. However the frustrating part is if you download these helpful book apps they all say hand tools for the title rather than what it actually is. So I have downloaded about 8 of various subjects but they all say they're "hand tools " rather than physics for instance

I have been exploring this app for hours now. Great information to be found. Unfortunately for the Novice, "LOST" would be the word. As in, LOST in what they were looking up info for, LOST as in, lost interest. With no way to match up the stone with a picture there's no way to know what it is exactly. So the information in this app is more for the advanced OR MORE INFORMED.

It's the gem stone, crystal and minerals bible, love the whole load of info on every picture. To pair whatever your looking for makes it very easy and clear to what you need to know about in all its contexts and very easy to use app. great app who sat for all the time in discovering all correct info that covers every basis on the item looking up. now i can look up to see if my gems are of rare and precious or ive just blown out with salt crystals, glass n plastic lol