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
Fluorescent Minerals
Opal mining: If It Glows Do I Want It
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="grubstake" data-source="post: 660968" data-attributes="member: 4012"><p>In your video I could see some big heaps of broken rock that looked like it had fallen from the roof, which would indicate dangerous instability if it has.</p><p></p><p>I'm not a mining engineer but I've been down a number of underground mines here in WA (and one in California), always accompanied by trusted professionals. I've actually seen an area of a mine that was in the process of shedding overhead rock - the Chief Geologist of a major mining company took me there to show me how it looked. He was hopping over boulders saying encouraging things like, "<em>This material has fallen down since I was here yesterday</em>"! It was damned scary.</p><p></p><p>Opal mining is full of people who think they know what's what on the basis of practical experience only, rather than actual mining expertise and training. Please take great care.</p></blockquote><p></p>
[QUOTE="grubstake, post: 660968, member: 4012"] In your video I could see some big heaps of broken rock that looked like it had fallen from the roof, which would indicate dangerous instability if it has. I'm not a mining engineer but I've been down a number of underground mines here in WA (and one in California), always accompanied by trusted professionals. I've actually seen an area of a mine that was in the process of shedding overhead rock - the Chief Geologist of a major mining company took me there to show me how it looked. He was hopping over boulders saying encouraging things like, "[I]This material has fallen down since I was here yesterday[/I]"! It was damned scary. Opal mining is full of people who think they know what's what on the basis of practical experience only, rather than actual mining expertise and training. Please take great care. [/QUOTE]
Verification
Post reply
Gemstones, Minerals & Fossils
Fluorescent Minerals
Opal mining: If It Glows Do I Want It
Top