THIS OBJECT  APPEARS TO BE A METALLIC CONE WITH SEVERAL CIRCLES EMBELLISHMENTS AROUND IT'S PARAMETER
THE SHAPE HAS MULTIPLE  GEOMETRIC FEATURES
CONE, CIRCLES, ROUNDED SMOOTH TANGENT LINES
TWO TEXTURES, THE TIP, AND LOWER PART OF THE OBJECT 
TOTALLY CONTRASTING APPEARANCE COMPARED IT'S SURROUNDINGS 
VERY CLOSE TO OTHER OBJECTS WHICH MAY PART OF LARGER MACHINE

ADJUSTED IMAGE SETTING TO A  NEGATIVE- REVEALS ADDITIONAL OBJECTS
THE OBJECT JUST SLIGHTLY IN FRONT OF THE MAIN OBJECT HAS WHAT LOOKS TO BE A SYMBOL OR A CIRCLE CRANK TO SPIN?
THE SYMBOL APPEARS TO HAVE A MECHANICAL FUNCTION 
A   PERFECT BLUR SQUARE HAS BEEN PLACED OVER THE OBJECT OBSCURING DETAIL

3D DRAWING OVER LAID NEXT TO THE SUBJECT OBJECT
THE RAW IMAGE ON SOL 862 WAS ZOOMED , BROUGHT TO HIGHER RESOLUTION, FOCUSED ,AND
INVERTED TO A NEGATIVE VIEW OF THE OBJECT. THE OBJECT LOOKS TO HAVE CAMS , CYLINDERS,   AND CRANK SHAFT COMPONENTS WITH IN A HOUSING.  LOOKING AT THE RAW IMAGE WITHOUT ADJUSTING THE IMAGES IT ONLY LOOKS TO BE ROCK, DUE TO THE METHOD USED TO PRESENT THE PICTURES.  THE CONCEPT MECHANICAL DRAWING OVER LAY MAY BE WHAT THIS OBJECT COULD HAVE LOOKED LIKE. THERE IS A THEME TO SOME OF THE MACHINES ON MARS. MANY HAVE  CYLINDERS  WITH THROUGH HOLES AS IF TO DIRECT GAS, OR FLUIDS IN A WAY TO CREATE  POWER TO A SHAFT.