Mohs Hardness Scale done beautifully for Geologist. Grab it NOW! Best ever geologist app! to ever be in your iOS device. As a geologist, this is a must have app. Bring it anywhere and show it to your colleagues.Kids, students and geologists alike will appreciate the fine design and beauty of this app.
||Compatible with iPod Touch (3rd generation or later, iPhone 3Gs, iPhone 4, iPad. iTunes account required.