An hour after midnight half a century ago, one of the most important meteoritic events ever appeared in the southwestern sky above the Mexican state of Chihuahua. And by the next morning, a formally very rare class of meteorite was now not only abundant, but as fresh as they come and on it’s way to labs around the world. As
Five Decades of Pure Science: The Allende Meteorite Hits Middle Age Read Post »
Tucson Gem and Mineral show of 2019 was supposed to be a clone of the 2018 show for Paul Harris and myself. But the weather was to take that plan and turn it upside down. We headed out on Thursday morning for the drive to Blythe, California where we would have a nice dinner and stay in a hotel. It
A newsletter for unclassified meteorites found in the USA. Some more good news to share with the readers of this newsletter. Several small donations have been made towards paying for the cost of getting classified some of the Ordinary Chondrites (OC) that have appeared in these Bob’s Bulletins. Now that I have found some “approved classifiers” that are willing to
NWA 3118 is a reliably feature rich CV3. It is a pleasure to view in thin section because of its dark uncluttered matrix and large well defined chondrules, AOAs and CAIs. Here is a gallery from a single thin section. All photos taken in cross-polarized light.
(mybp or my: million years before present; ky: thousand years before present) …And when your children shall ask “what meaneth these stones?” ye shall answer that this marks a place where the heavens touched the earth. Touched indeed. With typical encounter velocities in the range of 15 to 25 km per second, an onrushing fragment of an iron asteroid is
Are you sure Tektites are Meteorite Impact glasses? Read Post »
During the recent Tucson Show I had the pleasure of a visit by Mary-Elizabeth Zucolotto, curator of the meteorite collection of the Museum of Rio. We had a long chat about the recent fire of the museum and its aftermath; she showed me many pictures on her cell phone, told me about all the efforts to recover so many artifacts
THE FIRE OF THE NATIONAL MUSEUM OF RIO DE JANEIRO Read Post »
How To books can be similar to the instructions that come with furniture requiring assembly. Something written by an engineer who has never actually spread the parts out on a family room floor and attempted to put the thing together. That is not the case with “How to Find Treasure from Space” by Geoffrey Notkin. Geoff is not just a
Our Meteorite of the Month is kindly provided by Tucson Meteorites who hosts The Meteorite Picture of the Day. TKW 2 tons. Observed fall 8 February 1969, at the village of Pueblito de Allende, Chihuahua, Mexico. Contributed by Dieter Heinlein, IMCA 0117
