This is a very large pocket, painstakingly cut out of the matrix intact to form a sort of clamshell shape, filled with blooms of glistening heulandite and stilbite - the fanned heulandite of a pearly luster, and the stilbite a shimmering peach color. These two closely-related zeolites are frequently found together. The dark matrix inside the pocket is sprinkled with micro-stilbites of a dove-gray color.