Dims: 9.3 x 7.4 x 3.6" (23.6 x 18.8 x 9.1 cm)
Wt: 8.8 lbs. (4.0 kg)
Diamond Willow Mine, Thunder Bay, Ontario, Canada
This large cabinet specimen is well suited for a decoration in a home or office, especially if it can be placed in an area where it can be viewed from all sides. It consists of a large chunk of pale brown, siliceous host rock whose surface area is over 50% covered with a druse of small Amethyst crystals. These crystals do not exceed 0.5" (1.3 cm) in either length or diameter, and like crystals in most druses, have little or no visible prism lengths. They are generally in very good condition, though much damage was done to the piece in the process of freeing it from its place of origin. The crystals have excellent hexagonal prismatic form, with well-defined edges and clean faces that possess a vitreous luster. All have a moderately pale violet coloration, but close examination will reveal that many have a definite reddish tint. Examination of these crystals under magnification will show that this coloration is caused by spotty inclusions of hematite. Such inclusions are one of the characteristics of Amethyst from this locality. The crystals are generally translucent to dimly transparent, containing many veil-like inclusions. There are many blades of some type of pink-brown feldspar scattered on one part of the druse- I do not know exactly to which feldspar species they belong. Most are heavily broken, and intense intergrowth has given them very warped forms.