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Gold Prospecting
Hard Rock Gold Prospecting
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<blockquote data-quote="Hawkear" data-source="post: 650603" data-attributes="member: 4728"><p>I have seen similar colouration and texture in rocks i found in the Creswick area. They seemed to be vein wall ironstone excavated from an old nearby mine. </p><p>I found a large piece and several smaller pieces when I got a signal from them. To my surprise when I examined them more closely I saw that they were indeed specis with small amounts of quartz and some small nuggets enclosed. </p><p>I assumed the variation in colouration of the ironstone to be caused by weathering activity. I haven't retained any but from memory I think they also had voids like those shown, perhaps caused by other mineral crystals or inclusions being weathered out of the ironstone completely.</p><p>If these are of similar character maybe check the area out a bit more. </p><p>Have also seen basalt weather to the same sort of colouration but the shape of the voids would worry me there.</p></blockquote><p></p>
[QUOTE="Hawkear, post: 650603, member: 4728"] I have seen similar colouration and texture in rocks i found in the Creswick area. They seemed to be vein wall ironstone excavated from an old nearby mine. I found a large piece and several smaller pieces when I got a signal from them. To my surprise when I examined them more closely I saw that they were indeed specis with small amounts of quartz and some small nuggets enclosed. I assumed the variation in colouration of the ironstone to be caused by weathering activity. I haven't retained any but from memory I think they also had voids like those shown, perhaps caused by other mineral crystals or inclusions being weathered out of the ironstone completely. If these are of similar character maybe check the area out a bit more. Have also seen basalt weather to the same sort of colouration but the shape of the voids would worry me there. [/QUOTE]
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Gold Prospecting
Hard Rock Gold Prospecting
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