Important Notice: Our web hosting provider recently started charging us for additional visits, which was unexpected. In response, we're seeking donations. Depending on the situation, we may explore different monetization options for our Community and Expert Contributors. It's crucial to provide more returns for their expertise and offer more Expert Validated Answers or AI Validated Answers. Learn more about our hosting issue here.
Mica appears as sheety, shiny, plated crystals, sometimes displaying as ‘books’, where each cleavage plane is easily separated by a knife blade. Mica is also on the low end of the Mohs hardness scale, at 2-2.5, so you can probably scratch it with your fingernail. Mica is often found in association with granite, or granite pegmatites.
