Dims: 6.0" x 4.5" x 1.8" (15.2 x 11.4 x 4.6 cm)
Wt: 2 lbs., 1.8 oz.(958 g)
One of the odder Malachite specimens that I have come across, it shows the green color and layering tendencies of this mineral, but not very well. There are patches of tiny, fibrous needles that make up a rather thick layer of the piece, and are partially exposed on its surface; these needles do not exceed 2 mm in length. The other layers in the piece tend to be massive and rather chalky, and are probably not worthy of a lapidary's workshop. There is a small amount of material that has taken on tiny botryoidal formations on its surface. The Malachite has a dull luster and is opaque, and acts as a matrix for several patches of dark blue azurite. The azurite occurs in a semicrystalline form that shows an intense amount of pitting. One can see light reflect off of faces in the material, but no definite crystalline shapes or forms are visible. This material has the standard dark blue color of azurite, has a pearly luster, and is opaque. There are a few substantial veins of more azurite trapped in the Malachite matrix, but even that material still shows crystalline tendencies. There is no host rock to speak of. I believe that this piece is actually a part of a crust that was broken off. One side of this crust shows some heavy weathering, and the azurite patches that are exposed there are decomposed, and have a black color and no luster. This specimen intrigues me quite a bit- I really want to find out more about its formation.