Highly prized in most collections, Adamite is usually found in blocky to elongated orthorhombic blades. Here you have beautifully developed thin crystals grouped to form a stunning radial fan or "pinwheel" as the colelctors call them. With such a rich yellow color and excellent luster, this incredibly aesthetic specimen is super-choice. Most pinwheels are simply not on matrix...I guess they just fall off...but this is firmly anchored