МaksSand under a microscope is much more interesting. Only 250x magnification is required...
Loman Brophy@Torantino Crikey, that's amazing!
In my ignorance, I thought sand was virtually entirely made up of ground-up rock!
Bob Downie@LomanB @Torantino
Sand is defined as sedimentary particles in the size range 1/16 - 2mm (Wentworth Scale). There is no specification on what the grains are composed of & in my sand collection (yes really!) I have sands including those made of garnet (pink), olivene (green), magnetite (black), and many made from microfossils. Under a microscope they are all beautiful.
https://www.planetary.org/space-images/wentworth-1922-grain-size
Sand is defined as sedimentary particles in the size range 1/16 - 2mm (Wentworth Scale). There is no specification on what the grains are composed of & in my sand collection (yes really!) I have sands including those made of garnet (pink), olivene (green), magnetite (black), and many made from microfossils. Under a microscope they are all beautiful.
https://www.planetary.org/space-images/wentworth-1922-grain-size
@geomannie @Torantino that definition makes a lot sense of sense. Beautiful.