The igneous field data card contains information of igneous rock textures you will commonly find in the field as well as some of the more common igneous rocks such as basalts, granites, gabbros and more. IT displays a guide on how to determine a rock sample by observing it’s silica and texture content and offers data on the temperatures that lead to its formation. The card has been laminated so is waterproof and wont rip, making it ideal for students and also professional geologists, having a handy reference available at short notice, especially if you are about to partake in your field mapping projects. (Please note: you only get a single card, the image merely displays what is printed on each side of the card)
