GeologyRocks

hello everyone,

i am glad i have become a memberof your respectfull community.

lately i bought pea-rocks (gravel) to use for potting some plants.

by plane coincedence i found a fossil shell which seemed to have acquired the exact same characterstics as the pea rocks itself. that was expectable to me as i have studied the physical changes that fossils normally experince through time. but what caught my attention is that a part of the fossil shell's body is semitransparent. more like unclear crystal. 

you can imagine it like a crystalic (or smitrasparent) marpol with all of the beautifull curves and lines that makes marpol looks nice. 

that made me very curious to what age this fossil comes from and what is the secret behind that transparent part.

information about where the pea rocks came from:

they are most probably local. from the kingdom of saudi arabia, riyadh which is located at the edges of the great empty quarter.  the nearest sea cost is the arabian gulf (4-5 hours)! the gravel comes from greater rocks that is broken down into smaller parts by small local factories. hopefully the image gives you enough description of the same gravel where the fossil was found. 

 i cant hide the fact that i had ideas and thoughts that i have found ''a diamond''. unfortunately i am almost certain it cant be, since i have never been lucky enough to even win a prize!