🔎 UNIDENTIFIED Need help identifying

[Fodegrass]

Image

 

[rockpassion]

conglomerate

 

[ToddsPoint]

Yep. A conglomerate commonly called pudding stone. We find pudding stone in the glacial till here in central IL.

 

[Fodegrass]

I used photoshop to show the different colors, I just changed the light effect.

 

[Fodegrass]

After providing lightning, all the colors are visible

 

[pepperj]

I used photoshop to show the different colors, I just changed the light effect.

After providing lightning, all the colors are visible

And it's still conglomerate.

 

[Fodegrass]

Okay, what are those brown, green ,white and also one yellow inclusions?

 

[russau]

Okay, what are those brown, green ,white and also one yellow inclusions?

Small pebbles picked up while this material was in a semi - soft condition and while it was imbedded under tons of pressure for MANY , MANY centuries! I saw one in the Brooks Range while in Alaska and it had chips of green Peridot that took me several hours of chipping them out !

 

[Fodegrass]

Do a lot of people collect these rocks, because I like them very much, in fact it is the best rock in my collection.

 

[Fodegrass]

Is that green color mineral garnet

 

[Fodegrass]

Also there are red and yellow colored minerals,are all of these garnets.

 

[rockpassion]

Also there are red and yellow colored minerals,are all of these garnets.

the red inclusion is red jasper and the white probably quartz en the green inclusion could fine green sandstone or green siltstone. garnets are more crystaline and shimmer in the light. but i think that conglomarates or pudding stone don't have garnets. but i will let others judge that.

 

[Fodegrass]

Is it breccia since the fragments are angular.

 

[ToddsPoint]

Is it breccia since the fragments are angular.

I think you’re correct to call it breccia. Conglomerates have rounded pebbles.

 

[Fodegrass]

I found out the matrix is limestone. So can it be polished to make it look more appealing?

 

[ToddsPoint]

I found out the matrix is limestone. So can it be polished to make it look more appealing?

Definitely! This is an Indian style discoidal I made from quartz conglomerate. It polishes okay. The inclusions polish better than the matrix because they’re harder. The matrix can have some porous areas.