THE HANDMADE ELABORATION OF AN EGG, CALIBRATED, HANDMADE, IN ONIX MINERAL WITH TAKES A GREAT EFFORT IN ITS PREPARATION, FIRST, ITS PREFORM, THEN ITS SANDING, AND LASTLY GIVE IT BRIGHTNESS, TO AN ORIGINAL DESIGN, OF 6 X 10 CMS, WITH ITS CORRESPONDING BASE IN A BRONZE RING, GIVING AN EXTRAORDINARY FINISH TO LIKE CRAFTSMANSHIP. CONSIDERED AS SEMI-PRECIOUS STONE, ITS COLOR CAN VARY FROM WHITE, YELLOW, GREEN, RED OR BLACK, CORRESPONDS TO THE VARIETY OF CHALCEDONIES, IN THE CLASS OF OXIDES. VERY USED IN JEWELERIES AND IN ITS PROCEDURAL ARTICLES, DECORATIVE ARTICLES PROVINCE OF SAN LUIS, LA TOMA, ARGENTINE REPUBLIC.-