This is a simply outstanding thumbnail for the species! I have never seen one, in this size, I like better. It leaps out at you with the complex cityscape form and complicated parallel grooves going all around. It is stark white, with minute crystals of gods-know-what adding a bit of sparkly accent. This is truly world class fo ra thumb because for the species it is very good, structurally, regardless of size; it has good aesthetics; and it is a rarity hard to obtain in any case. was at $1000....