Could you please help identify this.

[Tvgreen]

I collect rocks an Raw crystals. I come across this rock an have no idea what it is. I have taken it to a few people an they couldn't tell me anything.

 

[Greg_wilson]

Possibly it’s some sort of conglomerate with imbedded quartz and other pebbles

 

[Tvgreen]

Ok thanks I know under the dark brown rock I know there is opal but that's it lol

 

[grubstake]

Ok thanks I know under the dark brown rock I know there is opal but that's it lol

Do you know where it was found, mate?

 

[Tvgreen]

Do you know where it was found, mate?

I can't remember exactly but I don't really travel far. So Holmview to Inala to gold coast more Holmview to coast then anything.

 

[grubstake]

Thanks. I was reading Fossil_phile18's post the other day about opalised fossils from Lightning Ridge and some of your pics looked a bit like the underside of a jawbone with quartz teeth. Probably just my imagination, but it's certainly an interesting specimen.

https://www.prospectingaustralia.com/threads/crazy-luck-in-lightning-ridge-opalised-fossils.39065/

​

 

[user 4386]

A breccia of dominantly silica with probable fragments of a broken-up quartz vein in it. You dont give clues like hardness so I assume the white is quartz (could be carbonates or feldspar) embedded in a matrix of chalcedony.

 

[user 4386]

x

 

[Tvgreen]

Thanks. I was reading Fossil_phile18's post the other day about opalised fossils from Lightning Ridge and some of your pics looked a bit like the underside of a jawbone with quartz teeth. Probably just my imagination, but it's certainly an interesting specimen.

https://www.prospectingaustralia.com/threads/crazy-luck-in-lightning-ridge-opalised-fossils.39065/

​

It's not your imagination I haven't looked and looked and looked at this specimen and to me it looks like fossil opal. And yes it looks like it could be the skull and heaps I have no idea

 

[user 4386]

I must have forgotten to "send". It looks fairly clearly to me to be a quartz vein that has been extended (pulled apart) prior to the rock as a whole being replaced by chalcedony or opal. I see no fossils, certainly nothing that resembles teeth.

 

[user 4386]

Here is an example of a quartz vein in early stages of extension and fragmentation

 

[user 4386]

Here ir is in the broader context



And another example - such things are common

 

[Gemo]

Ok thanks I know under the dark brown rock I know there is opal but that's it lol

Yes 4506 looks like opal conglomerate with opal local name is a blow