On a basaltic matrix with pastel green, clusters of chalcedony are emplaced, lustrous, translucent, dark salmon color, crystals of stilbite, to 4.5 cm across. The color contrast is amazing! This is one of the largest examples form this small find of last fall.. This piece has a few very trivial little bits of bruising, hence the low price, but displays really nicely and is impressive overall for the size and color splash