On the night of December 16, 1938, a bright fireball lit up the sky over remote Tanzania. Many witnesses observed this fireball explode and several meteorites fell to the ground. After searching, only one solitary stone of about three-quarter pound (705g) was recovered.
This meteorite was the first of it's type ever seen by scientists. The material is a dark black, fine grained matrix that is replete with chondrule fragments, CAI's, inclusions, and extra-solar grains. The chemical composition of this meteorite plots closely to that of the solar photosphere, and is believed to have formed in the outermost reaches of the solar nebula. As such, this is one of the most primitive and pristine of meteorite materials.
The CI class of carbonaceous chondrites is named after Ivuna and it is the type specimen of all CI meteorites (only five others have been found outside Antarctica) and it is one of the most rare of all meteorites on the collector market by weight.
I acquired many tiny fragments of this meteorite from a reliable source with solid provenance. I only have a small supply and I don't know if I can ever get more of it. These micromounts are being offered a budget price so that every type collector can afford to buy this rare locality. Each small fragment weighs about 1mg with some being slightly larger than the others. Note, you will receive the largest remaining fragment from my supply as it sells out.
Refer to the photo. The black centimeter cube is shown for scale and is not included. You are purchasing a single tiny fragment like the one shown. Each fragment comes with a labeled gemjar for safe storage. Also, each fragment will be inside a gelatin capsule to protect it - the capsule can be opened and the fragment removed for microscope or loupe study. (capsule not shown).