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
Gold Prospecting
Metal Detecting for Gold
Next level of gold detecting?
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="user 4386" data-source="post: 446226" data-attributes="member: 4386"><p>There might be situations where it could be used. However keep in mind that it cannot detect the gems, it can only tell you if there is a subsurface cavity such as might be lined with crystals. So you would have to have such a situation in a gemfield, and understand the geology well, for it to have application in gem prospecting. There are such gemfields, but in most of Australia such situations are rare (I cannot think of such a situation for sapphires or zircon here, and we lack significant emerald or ruby fields, almost none in eastern Australia). These tend to be alluvial, or do not project into open cavities but are part of the rock in which they occur. It would work better with quartz gems and topaz, perhaps tourmaline and the occasional zircon occurrence, since we do take them from cavities and they are relatively common. But most of our gems are alluvial, unlike the ruby fields of Burma or the emerald fields of Columbia. But of course you cannot distinguish a cavity containing gems from any other cavity simply formed by weathering of the rocks, which will be scores more abundant.</p><p></p><p>It also could not distinguish potch from precious opal (but opal tends to occur with potch, so it could help you zero in as to where to focus).</p></blockquote><p></p>
[QUOTE="user 4386, post: 446226, member: 4386"] There might be situations where it could be used. However keep in mind that it cannot detect the gems, it can only tell you if there is a subsurface cavity such as might be lined with crystals. So you would have to have such a situation in a gemfield, and understand the geology well, for it to have application in gem prospecting. There are such gemfields, but in most of Australia such situations are rare (I cannot think of such a situation for sapphires or zircon here, and we lack significant emerald or ruby fields, almost none in eastern Australia). These tend to be alluvial, or do not project into open cavities but are part of the rock in which they occur. It would work better with quartz gems and topaz, perhaps tourmaline and the occasional zircon occurrence, since we do take them from cavities and they are relatively common. But most of our gems are alluvial, unlike the ruby fields of Burma or the emerald fields of Columbia. But of course you cannot distinguish a cavity containing gems from any other cavity simply formed by weathering of the rocks, which will be scores more abundant. It also could not distinguish potch from precious opal (but opal tends to occur with potch, so it could help you zero in as to where to focus). [/QUOTE]
Verification
Post reply
Gold Prospecting
Metal Detecting for Gold
Next level of gold detecting?
Top