Geology

Good one

Images not to scale, all based on guess work with no clear image of microstructure or minerals present. The majority of rocks included are beyond the layman. Dacite vs Trachyte from images of the included resoloution is rather difficult to say the least.....

Helpful as I am a student of geology

Best quality

Images not to scale, all based on guess work with no clear image of microstructure or minerals present. The majority of rocks included are beyond the layman. Dacite vs Trachyte from images of the included resoloution is rather difficult to say the least.....

nice

It increases your knowledge of different types of minerals, but a lot of work is needed to be attractive to students.

Good

Memo

It's good for geology students

nice app

I liked it so much

geologist

I love it so much!!!!!!!!!!!!!!!!!!!!!!!!

Good

It's a great app but it would be nice if there was some information regarding the rocks/minerals shown in the quiz.

Very good

These is a cool app but we want these app in next step we want the basic information about the specimen plzzz do it fst

It is just a quiz on recognizing rocks and minerals on sight.

Good one

Helpful as I am a student of geology

Too gud

Very good! Im' old, but I still can learn! Thank you

I love the idea of this game. However you need way better pictures for an ID game.

Would have been better of the images have scales and if the pictures were better quality

Excillent

Verry good app

Need bigger pictures, maybe a zoom option, and more quizzes, maybe add some geology trivia of compositions and definitions.

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Not bad ...