DUMORTIERITE
Specimen dum-1
$ 30.00
Dims:3.1x2.1x0.6" (7.9x5.3x1.5 cm)
Wt: 2.7oz. (76g)
Pershing cty., Nevada
At first glance, this specimen appears to be an impure mica schist. Upon examination with a loupe, however, the "mica" turns out to be thousands of tiny radiating needles of dumortierite in a quartz host. The needles range up to 0.1" (0.3cm) in length, and are translucent. These crystals are greenish in color. This is a fascinating specimen to examine under a loupe.
 Amethyst Galleries' Mineral Gallery MINERALS |
DUMORTIERITE specimen dum-1
$ 30.00
$ 30.00
Dims:3.1x2.1x0.6" (7.9x5.3x1.5 cm)
Wt: 2.7oz. (76g)
Pershing cty., Nevada
At first glance, this specimen appears to be an impure mica schist. Upon examination with a loupe, however, the "mica" turns out to be thousands of tiny radiating needles of dumortierite in a quartz host. The needles range up to 0.1" (0.3cm) in length, and are translucent. These crystals are greenish in color. This is a fascinating specimen to examine under a loupe.
dum-1 ($ 30.00)
Pershing cty., Nevada
DUMORTIERITE specimen dum-2
$ 25.00
$ 25.00
Dims: 1.11x0.74x0.46" (2.81x1.88x1.16cm)
Wt: 0.32oz (9.2g)
Canta, Peru
This little blue rock is an example of the mineral dumortierite. It is a dull, slightly gray-blue color. A loupe reveals that it is multi-crystalline, being composed of intergrown millimeter sized clusters that show a radial pattern, darker in the middle.
dum-2 ($ 25.00)
Canta, Peru