a close-up of a dark textured surface with scattered salt-like crystals, transitioning from deep blue to a warm, reddish

texture dark surface salt crystals scattered blue red hue background macro granules abstract gradient colortransition mineral pattern rough details grains texturedbackground particles contrast colorful artistic backdrop wallpaper depth vibrant natural grunge earthy design art organic saturation crystaltexture sprinkled roughsurface speckled gritty sharp granular sparkle corrosion element science geology