Cerussite is usually always twinned. So this one is but just barely wit ha couple of small twinned members on one sidde. The rest of it is just one, single crystal. Unusual. It is well formed, colourless and fairly gemmy inside. It is, in fact, doubly terminated on one side where the crystal droops over the edge of the small piece of matrix. A couple of slight chips in the main termination. Nice looking, instructive crystal!