Glauconite has prolonged been Employed in Europe as being a environmentally friendly pigment for inventive oil paint under the title green earth.[nine][10] One particular case in point is its use in Russian "icon paintings", An additional popular use was for underpainting of human flesh in medieval portray. Some elements of https://finnmgxkd.pages10.com/not-known-facts-about-gluconite-57839241