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Géoforum est un forum de géologie, minéralogie, paléontologie, volcanologie et, plus généralement, un site dédié aux Sciences de la Terre et au patrimoine géologique. Les discussions s'organisent dans des espaces spécifiques, il existe un forum géologie, un forum minéraux, un forum fossiles, un forum volcans, etc. Une galerie de photos de minéraux ou de roches, de photos de fossiles, ou encore de sites géologiques ou de volcans permet de partager des albums. Il est possible de publier des offres d'emploi de géologue, ou des demandes d'emploi ou stage de géologues. Venez poser vos questions, partager vos connaissances, vivre votre passion !

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Lost In Translation :

"OFFERED HERE IS D’ORBIGNY;

IT IS THE LARGEST ANGRITE METEORITE IN THE WORLD AND ONE OF THE RAREST AND MOST MYSTERIOUS METEORITES EVER TO FALL TO EARTH. CURRENTLY THERE ARE 12 KNOWN ANGRITES AND A TOTAL KNOWN WEIGHT OF LESS THAN 50 POUNDS. D’ORBIGNY IS NOT ONLY THE LARGEST OF ALL ANGRITES BUT ALSO REPRESENTS 75% OF ALL ANGRITE MATERIAL EVER FOUND. THE ORIGINAL MASS WEIGHED 36.3 POUNDS (16.5 KILOGRAMS) WHEN IT WAS FIRST FOUND INTACT IN 1979. THIS IS THE 2.39 KILOGRAM (5.26 POUND) MAIN MASS FRAGMENT FROM THE CENTER OF THE ORIENTED COMPLETE MASS OF D’ORBIGNY WHICH WAS BROKEN INTO FRAGMENTS BY A SCIENTIST IN VIENNA, AUSTRIA WHEN THE INITIAL IDENTIFICATION ANALYSIS WAS DONE. IT MEASURES APPROXIMATELY 9.5" X 5" X 2.5" THICK

THE ANGRITES ARE PRIMARILY COMPOSED OF VARYING AMOUNTS OF FASSAITIC PYROXENE, ANORTHITIC PLAGIOCLASE, OLIVENE, KIRSCHSTEINITE AND OTHER ACCESSORY MINERALS AND PHASES. THEY ARE BASALTIC ROCKS WITH CUMULATE TEXTURES. THIS ULTRA RARE GROUP OF ANOMALOUS METEORITES WERE NAMED AFTER ANGRA DOS REIS THE NAMESAKE METEORITE WHICH WAS SEEN TO FALL IN BRASIL IN 1869, IT WAS 117 YEARS BEFORE THE NEXT ANGRITE WAS FOUND AND TO THIS DAY ONLY 12 HAVE BEEN FOUND WORLDWIDE. A NUMBER OF THESE 12 WERE FOUND IN WERE ANTARCTICA AND CANNOT BE PRIVATELY COLLECTED OR OWNED.

THIS MOST AMAZING AND ANOMALOUS SPECIMEN OF ALL THE ANGRITES IS SO UNUSUAL LOOKING THAT SEVERAL WORLD RENOWNED MUSEUMS RETURNED THEIR PIECES SENT FOR IDENTIFICATION SAYING TO THE FRUSTRATED FINDER THAT IT WAS NOT A METEORITE AT ALL. AS IT TURNS OUT THIS WONDERFUL METEORITE IS ONE OF THE RAREST TYPES OF METEORITE EVER TO COME TO EARTH FROM SPACE. ESSENTIALLY IT BREAKS ALL OF THE RULES OF WHAT NORMALLY MAKES UP A METEORITE. WITHIN THE MATRIX ARE VUGS (IRREGULAR SHAPED CAVERNS) FILLED WITH BEAUTIFULLY TERMINATED AUGITE CRYSTALS, VESICLES (HOLLOW SPHERES LINED WITH MICRO-THIN GLASS), OLIVENE CLASTS AND LARGE INCLUSIONS OF OBSIDIAN LIKE GLASS. I HAVE MEASURED VESICLES OF UP 2.5 CENTIMETERS IN DIAMETER ON THE BROKEN SURFACES OF SOME OF THE FRAGMENTS (LARGE ENOUGH TO FIT YOUR THUMB INTO)! BUT ON THE BACK SURFACE OF THIS ORIENTED, LIGHTWEIGHT, FOAMY, FROTHY, STONE SHIELD THEIR WAS A FUSION CRUST LINED CRATER OF WHAT MAY HAVE BEEN A RUPTURED VESICLE OF NEARLY 16.5 CENTIMETERS ( ROUGHLY 6.5 INCHES) IN DIAMETER! THIS CRATER IS WELL REPRESENTED BY THE MASS OFFERED HERE TODAY. THERE ARE A MULTITUDE OF ADDITIONAL ANOMALIES WITHIN THE MATRIX OF THIS SINGLE MOST UNIQUE VISITOR FROM THE COSMOS. SCIENTISTS HAVE PROVEN THAT THE AGE OF THIS STONE IS NEARLY 4.552 BILLION YEARS OLD WHICH MAKES IT VERY NEARLY AS OLD AS THE FORMATION OF OUR SOLAR SYSTEM AND THE MOST ANCIENT IGNEOUS ROCK KNOWN. IN ONE AREA OF THE METEORITE THERE IS A STRANGE FLAT PLANE OF ALIGNED CRYSTALS WHICH EXTENDS TO THE FUSION CRUSTED EXTERIOR AT ONE END BUT TERMINATES ROUGHLY THREE QUARTERS OF THE WAY ACROSS THE CENTER OF THE MASS. IT ALMOST APPEARS AS THOUGH SOMEONE MADE THAT LINE OF CRYSTALS WITH A STRAIGHT EDGED RULER. ALSO WITHIN THE MATRIX THERE IS AN ANOMALY WHICH CAN ONLY REALLY BE SEEN BY LOOKING AT A LARGER FRAGMENT LIKE THIS MAIN MASS PIECE. IT IS OBVIOUS THAT THE MORPHOLOGY OF THE MATRIX CHANGES FROM THE OUTER REGIONS TO THE CENTER OF THE MASS ALMOST AS IF IT WAS IT’S OWN PARENT BODY, AN INDIVIDUAL, TINY PLANETESIMAL THAT FORMED LIKE A MOLTEN STONE BUBBLE IN INTENSE HEAT AND COOLED INTO A SOLID, ROUND PARENT BODY AND DRIFTED AROUND IN OUR SOLAR SYSTEM UNHARMED AND WITHOUT DAMAGING IMPACTS UNTIL IT FELL INTO EARTH’S ATMOSPHERE AND LANDED IN ARGENTINA. COMPLETELY COVERED WITH FUSION CRUST FROM BURNING ON ENTRY, ONLY PART OF THE GLOBE MADE IT TO THE GROUND. IS IT POSSIBLE THAT THE LARGE HOLLOW VESICLE IN THE CENTER OF THIS TINY, ROUND PLANET COULD NOT WITHSTAND THE RIGORS OF ENTRY AND THE ATMOSPHERIC PRESSURE CHANGES AND FLIGHT COMPRESSION AND BLEW THE GLOBE APART, DEPOSITING THIS ONE PORTION OF ITSELF ON LAND HERE ON EARTH MANY YEARS AGO?

SOMEDAY TECHNOLOGY WILL CATCH UP WITH OUR QUESTIONS. IN THE MEANTIME I FEEL THAT IT IS EXTREMELY IMPORTANT FOR SPECIMENS LIKE THIS TO BE PRESERVED FOR HUNDREDS OF YEARS SO THAT OUR RESEARCH TECHNIQUES AND INSTRUMENTS HAVE TIME TO CATCH UP WITH THE QUESTIONS (NO MORE SCIENTISTS WIELDING HAMMERS AND CHISELS!).

IN SOME OF THE PICTURES ATTACHED ONE CAN SEE THE FAIRLY FINE GRAINED CRYSTAL STRUCTURE THAT HAS FEW SMALL VESICLES NEAR THE EXTERIOR RADIAL SURFACE JUST BELOW THE FUSION CRUSTED EXTERIOR AND AT A THICKNESS OF ROUGHLY ½ INCH. AS ONE LOOKS CLOSER TO THE CENTER ONE CAN SEE A CHANGE TO A MORE POROUS TEXTURE AND THE LARGER SIZE OF VUGS AND VESICLES AS IF THE STRUCTURE IS RELATED TO IT’S POSITION FROM CORE TO CRUST LIKE A TINY PLANETESIMAL OF MOLTEN MATTER SPINNING IN THE VACUUM OF SPACE AS IT FORMED A SPHERE AND COOLED. IT HAS BEEN SAID IN RESEARCH PAPERS THAT THE VESICLES WERE FORMED WHEN ROUND INCLUSIONS OF SOLID MATTER GASSED OUT LEAVING HOLLOW SPHERES BUT THEN THAT RAISES THE QUESTION OF WHY WERE THESE SOLIDS ROUND WHEN EVERYTHING ELSE IN THE MATRIX IS ANGULAR OR GEOMETRIC CRYSTALLINE SHAPES AND TEXTURES. ONE CAN ALSO SEE THE DARK, SMOKEY VOLCANIC GLASS AND THE MILKY GREEN OLIVENE INCLUSIONS. THE FUSION CRUST IS A LIGHT GREY TO BLACKISH COLORATION AND THE LEADING EDGE SHIELD SIDE DISPLAYS ELONGATED REGMAGLYMPHS (THUMBPRINTS) DENOTING THE DIRECTION OF FLIGHT AND ABLATION DURING ENTRY. THIS SINGLE METEORITE HAS A LIST OF ANOMALIES THAT SHOULD KEEP SCIENTISTS ON THE EDGE OF THEIR SEATS FOR CENTURIES TO COME. A NUMBER OF SCIENTISTS HAVE WORKED HARD TO TRY TO PROVE THAT THE ANGRITES ORIGINATE FROM MERCURY AND YET A VERY LARGE NUMBER OF VALID RESEARCH PAPERS SHOW EVIDENCE THAT THE ANGRITES ARE NOT OF MERCURIAN ORIGIN. NO MATTER THE OUTCOME OF THOSE ARGUMENTS, D’ORBIGNY IS HANDS DOWN ONE OF THE MOST MYSTERIOUS, UNUSUAL, EXCITING, INTRIGUING AND PRECIOUS SPACE VISITORS EVER TO COME OUR WAY. IT IS EASY TO UNDERSTAND WHY IT IS CONSIDERED ONE OF THE MOST SOUGHT AFTER RESEARCH MATERIALS ON EARTH, ONE OF THE RAREST METEORITES EVER TO FALL OR TO BE FOUND ON EARTH AND HOW IT CAN BE CONSIDERED EVEN MORE RARE AND PRECIOUS THAN EVEN BASALTS KNOWN TO BE FROM MARS OR OUR OWN EARTH MOON. IT MAY BE THAT THERE ARE MORE SCIENTIFIC RESEARCH PAPERS WRITTEN ON THE ANGRITES THAT ANY OTHER GROUP OF METEORITES AND THAT EVEN THOUGH D’ORBIGNY WAS NOT FORMALLY IDENTIFIED AS A METEORITE UNTIL 1997, IT IS PROBABLY THE MOST RESEARCHED,PUBLISHED AND SOUGHT AFTER OF ALL 12 ANGRITES. ONE ONLY NEEDS GOOGLE ANGRITES OR D’ORBIGNY TO FIND THOUSANDS OF EXCELLENT RESEARCH PAPERS PUBLISHED BY SOME OF OUR PLANETS FINEST SPACE AND PLANETARY SCIENTISTS. SINCE VIRTUALLY ALL OF D’ORBIGNY IS NOW LOCKED AWAY IN A FEW FINE, PRIVATE COLLECTIONS AND A NUMBER OF COVETOUS MUSEUMS IT IS A ONCE IN ALL HISTORY AND FUTURE EVENT FOR THIS MAIN MASS SECTION FROM THE CENTER OF THE STONE TO BE SHOWN OR OFFERED AS AVAILABLE. IT IS MY FERVENT HOPE THAT THIS FANTASTIC WORLD RENOWNED SPECIMEN WILL FIND IT’S WAY INTO THE HANDS OF SCIENCE TO BE STUDIED AND PRESERVED FOR STUDENTS AND RESEARCHERS TO BENEFIT FROM FOR CENTURIES TO COME AND IT WILL TAKE A PIECE THIS LARGE TO LAST THOSE YEARS.

I HAVE COLLECTED METEORITES SINCE I WAS FIVE YEARS OLD WHEN I ACQUIRED MY FIRST IRON METEORITE FROM H.H.NININGER, A 272 GRAM (ONE HALF POUND) CANYON DIABLO METEORITE FOR THE PRICE OF $1.00. I HAVE BEEN A METEORITE DEALER FOR HALF OF MY LIFE – 27 YEARS AND A FULL TIME METEORITE DEALER FOR 20 YEARS. I HAVE BEEN A BUYER/SELLER ON EBAY SINCE MARCH OF 1999. I AM ONE OF THE OLDEST ESTABLISHED DEALERS IN THE METEORITE WORLD AND MY SON WHOM I IDOLIZE AND WHO IS WELL EDUCATED IN GEOLOGY AND FINANCE WILL BE RUNNING THE FAMILY BUSINESS LONG AFTER I AM DUST IN THE COSMOS.

THE PRICE OF THIS SPECIMEN IS $6500.00 PER GRAM … MULTIPLIED TIMES 2392 GRAMS…. EQUALS …$15,548,000.00

THERE WILL BE NO SHIPPING CHARGES OR CONCERNS; WE WILL DELIVER THIS SPECIMEN IN PERSON. PAYMENT WILL BE REQUIRED AND CLEARED PRIOR TO DELIVERY.

WE GUARANTEE COMPLETE SATIFACTION AND AUTHENTICITY AS LONG TIME MEMBERS OF THE METEORITE COLLECTOR AND VENDOR COMMUNITY.

PLEASE BID ON THIS ONE AND ONLY OF ITS KIND AND SIZE SPECIMEN WITH THE UTMOST CONFIDENCE

THANK YOU FOR LOOKING

E.T. METEORITES"

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bon j'ai traduit vite fait apparemment on parle de la météorite d'orbigny 16,5 kg découverte en argentine qui est une angrite, çà me parait bizarre car je possède en collection une petite plaque 0.2 g pour 130 euros de cette très rare météorite les prix pratiqués pour ce type de météorite est d'environ 1000 euros le gramme actuellement et encore dur dur d'en avoir tellement elles sont rares, plus rares que les lunaires et les martiennes 6 exemplaires connus à ce jour, a que qu'il me semble la pièce principale c'est a dire la totalité de la chute est dans un musée, serait ce une autre découverte ou une pierre qui s'apparente au angrites, ou un vrai morceau de la météorite d'orbigny ou une grosse arnaque ????? ce qui est sur c'est que le prix est exagéré à 6500 $ le gramme et c'est ce détail qui me laisse quelques doutes

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