Forums
New posts
Search forums
What's new
New posts
Latest activity
Members
Registered members
Current visitors
Charts
Log in
Register
What's new
Search
Search
Search titles only
By:
New posts
Search forums
Menu
Log in
Register
Install the app
Install
Gemstones, Minerals & Fossils
Gemstones and Minerals
❓Your Mineral Identification Questions answered here
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Reply to thread
Help Support Prospecting Australia:
This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others.
Message
<blockquote data-quote="Lefty" data-source="post: 417016" data-attributes="member: 2976"><p>No worries mate :Y: Ill answer as best I can, Ive been and avid fossicker for decades but Goldirocks is a geologist and is best placed to answer many questions.</p><p></p><p>I cant get to the geo map of your area until teenage son gets off the main computer but I suspect it will transpire thatyour area is dominated by felsic volcanic geology. That is, old lava of a chemistry high in felsdspar and silica. Eastern QLD and eastern NSW in particular are heavily composed of ancient igneous rocks and I recall seeing volcanic plugs sticking up all over your area whenever I drive down to Brissie.</p><p></p><p>Agates, jaspers and chalcedonies are often not uncommon in such areas. An area of felsic volcanoes near me up here in in central QLD produces, thundereggs, agate, jasper, chalcedony and loads of petrified wood, often with brightred or orange chalcedony growing over and through it.</p><p></p><p>If that piece it that colour all the way through it would make a beautiful cabochon( the smooth , domed stones you sometimes see in jewellery settings. I've been wondering about a faceting design i have for translucent materials but have never tried it. But its a nice specimen as aswell.</p><p></p><p>And i dont think any volcanoever spat out just one single piece of chalcedony, where theres one bit thereslikely to be more.</p><p></p><p>Cheers</p></blockquote><p></p>
[QUOTE="Lefty, post: 417016, member: 2976"] No worries mate :Y: Ill answer as best I can, Ive been and avid fossicker for decades but Goldirocks is a geologist and is best placed to answer many questions. I cant get to the geo map of your area until teenage son gets off the main computer but I suspect it will transpire thatyour area is dominated by felsic volcanic geology. That is, old lava of a chemistry high in felsdspar and silica. Eastern QLD and eastern NSW in particular are heavily composed of ancient igneous rocks and I recall seeing volcanic plugs sticking up all over your area whenever I drive down to Brissie. Agates, jaspers and chalcedonies are often not uncommon in such areas. An area of felsic volcanoes near me up here in in central QLD produces, thundereggs, agate, jasper, chalcedony and loads of petrified wood, often with brightred or orange chalcedony growing over and through it. If that piece it that colour all the way through it would make a beautiful cabochon( the smooth , domed stones you sometimes see in jewellery settings. I've been wondering about a faceting design i have for translucent materials but have never tried it. But its a nice specimen as aswell. And i dont think any volcanoever spat out just one single piece of chalcedony, where theres one bit thereslikely to be more. Cheers [/QUOTE]
Verification
Post reply
Gemstones, Minerals & Fossils
Gemstones and Minerals
❓Your Mineral Identification Questions answered here
Top