This Specimen has been sold.
2.9" Anatase Crystals and Quartz Association - Pakistan
This specimen contains nearly a dozen easily visible, flat terminated metallic anatase crystals, associated with small and medium green chlorine dusted quartz crystals, on a rough matrix. Very small anatase crystals can also be seen scattered throughout the entire specimen. The largest anatase crystal on this specimen measures in at .19" long.
Anatase is composed of titanium dioxide, and typically forms dipyramidal crystals, although variations can occur with mineral clumping. Four pointed X-shaped anatase crystals, while rare, have been found and are known as "X-shaped penetration twins". Horizontal striations can be seen across most anatase mineral faces, with most crystals ending in points, or with variations of flattening on each end.
2.9" long, 2.7" wide, .19" longest Anatase