Quartz
sketchfab
Computer screens is perferable method of viewing, cell phones make this sample too dark. This sample is more of a rough draft than a final product. Try to make minerals translucent and detailed as possible, without losing its shape is difficult. Will add more samples later, as I grow as an editor for Sketchfab.
Download Model from sketchfab
With this file you will be able to print Quartz with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on Quartz.