Apps like Handbook of Mineralogy

Here are some great alternatives to Handbook of Mineralogy by farcraft :
Smart Mineralogist
Smart Mineralogist
★4.1
Rock Identifier - Gemstone
Rock Identifier - Gemstone
★3.8
Rock: Identifier & Stone ID
Rock: Identifier & Stone ID
★3.9
Oxford Dictionary of Geology
Oxford Dictionary of Geology
★4.3
Crystal Guide® Pocket Edition
Crystal Guide® Pocket Edition
★4.6
Rock Identifier: Crystal Stone
Rock Identifier: Crystal Stone
★4.5
Rock ID - Stone Identifier
Rock ID - Stone Identifier
★4.4
List of rock types
List of rock types
★4.3
Hero RockID - Stone Identifier
Hero RockID - Stone Identifier
★3.9
Minerals catalogue A-Z
Minerals catalogue A-Z
★4.4
Rock Identifier by Photo
Rock Identifier by Photo
★4.1
Digger's Map
Digger's Map
★4.0
Rock Identifier: Stone ID
Rock Identifier: Stone ID
★4.5
Soil Mechanics
Soil Mechanics
★5.0
Petroleum Geology Book Offline
Petroleum Geology Book Offline
★4.4
Rocks & Minerals Book
Rocks & Minerals Book
★4.3