⭐ Gemstone & Mineral Show n Tell

[Lefty]

Yep, couldn't agree more. I love taking transparent rocks and faceting them into finished gems - but some things are just perfect by nature, such as the specimens above {) :Y:

 

[Pat Hogen]

That "flaky stuff in the middle" is very similar to Aragonite, by the 'looks' of it.

 

[Dron]

Smoky Quartz, from near Oberon NSW

 

[Theduke]

Yep, couldn't agree more. I love taking transparent rocks and faceting them into finished gems - but some things are just perfect by nature, such as the specimens above {) :Y:

I was just lucky enough to stumble on the pocket after following a vain but after soaking the vain I now think I have black amethyst as theres a tint of purple on the vain piece I pulled out

 

[Theduke]

Just pulled this out of my bag of finds from a couple weeks ago not sure what it is. Wave hill area nt where I found it was thinking agate. Shining light through gives a pink colour

 

[nytmadie]

Nice fined they look good all cleaned up Dron and Thedruke just stunning

 

[rom]

.

 

[rom]

Smoky Quartz, from near Oberon NSW

Awesome find Dron, was there a lot of work in finding that? ickshovel:

They look pretty cool Theduke!

 

[Straya]

Does anybody know what this cool rock is. Quite intriguing

 

[Pat Hogen]

https://www.prospectingaustralia.co...7364_64643ecd-495f-4111-a5cf-5313730f8447.jpg

Does anybody know what this cool rock is. Quite intriguing

Agatised wood.

I found this one:

 

[Straya]

Pardon my lack of knowlege of geology but is that same as petrified wood

 

[user 4386]

https://www.prospectingaustralia.co...7364_64643ecd-495f-4111-a5cf-5313730f8447.jpg

Does anybody know what this cool rock is. Quite intriguing

Agatised wood.

I found this one:

https://www.prospectingaustralia.com/forum/img/member-images/11720/1537342625_dscn1805.jpg

I'm not convinced of that, but it is interesting.
Black one resembles flint

 

[Pat Hogen]

Pardon my lack of knowlege of geology but is that same as petrified wood

Certainly is.

From Mindat.org:

A decorative type of fossil wood where the original organic material has been replaced - usually by chalcedony or agate (cryptocrystalline quartz), but sometimes by opal, coal, pyrite, calcite and others.
Colors red and green are usually caused by iron, but a few of the more brightly colored green woods may be colored by chromium.

 

[Lefty]

Ive got petrified wood from Riverslea with red and orange and white chalcedony growing over and through it. Haven't yet found a piece composed entirely of chalcedony, hopefully I will before the river crossing is drowned by the new wier construction.

Theee was some really nice opalised wood at Springsure where the labradorite is still available but the wood deposit has been closed after someone took in an excavator without permissikn.

 

[Pat Hogen]

I did see some amazing fully petrified cycad pieces in the Alpha area, pieces that were 8 & 10" long. The piece in the above photo that I collected came from near Middlemount.

My brother-in-law tells of whole petrified logs being uncovered in the open cut areas from Moranbah to Coppabella.

 

[LONEWOLF]

There was a whole tree pulled out of the old Box Flat coal mine at Ipswich in the 70's too.... before the Disaster...

LW...

 

[user 4386]

They apparently used to make walking sticks from stuff recovered mining the Ballarat leads. I would love to have one, even if I don't need it yet! I can only think they were only slightly replaced (enough to be preserved).

 

[Theduke]

A nice piece of petrified wood I found on my last work trip

 

[Dave79]

Some of my favorites out of my first batch of tumbled river stones. Especially like the petrified wood. Will have to plan a holiday to Lune River sometime soon to look for some big bits.

 

[Firepanther]

A nice topaz i found today in northeast tas. Very happy