Saganite

Saganite is a variety of chalcedony with numerous straight, needle-like inclusions of a different color (usually ivory or yellow with brown or greenish black needles). The needles often radiate, star-like, from a common center. Saganite occurs in large deposits and is often sold in fist-sized (or larger) chunks. In Amn, one may hear two tradesmen discussing the sale price of a "fist of saganite". Saganite is sometimes called "needle stone", "love stone", or "hairstone". A typical specimen has a base value of 10gp.