Australian Politics Forum - Can you identify these rocks?

Bobby. Gold Member Offline Australian Politics Posts: 104743 Melbourne Gender:	Can you identify these rocks? Yesterday at 5:51pm First of all a teaser picture of all of them. I'll post some individual ones later. I don't know what they all are. Fortunately we have a trained geologist here at Ozpolitic - his name is Monk and he will find it easy.
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Bobby. Gold Member Offline Australian Politics Posts: 104743 Melbourne Gender:	Re: Can you identify these rocks? Reply #1 - Yesterday at 6:23pm Mineral number 8.
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Grappler Truth Teller Feller Gold Member Online Australian Politics Posts: 84550 Proud pre-1850's NO Voter Gender:	Re: Can you identify these rocks? Reply #2 - Yesterday at 6:24pm A Mesopotamian Desert Toad Fish ....
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Bobby. Gold Member Offline Australian Politics Posts: 104743 Melbourne Gender:	Re: Can you identify these rocks? Reply #3 - Yesterday at 6:35pm Rock / mineral number 12.
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Jovial Monk Gold Member Offline Dogs not cats! Posts: 46772 Gender:	Re: Can you identify these rocks? Reply #4 - Yesterday at 6:40pm Hardness, density?
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Jovial Monk

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Dogs not cats!

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Re: Can you identify these rocks?
Reply #5 - Yesterday at 6:50pm

I DID tell the cretin that the hardness and density of the minerals is needed

6 is malachite (green bits) with maybe azurite (blue bits) or the blue-ish parts are a rock the malachite grew on.

Interesting: over time azurite turns into malachite. Now, when lapis lazuli wasn’t available artists used azurite to make blue paints. So if you have seen a classic painting with a green sky now you know why.

You have a geode that normally would have amethyst crystals in it but the color seems to have pooled in the surrounding rock.

1 could be petrified wood for all I can tell.

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Bobby. Gold Member Offline Australian Politics Posts: 104743 Melbourne Gender:	Re: Can you identify these rocks? Reply #6 - Yesterday at 6:51pm Having trouble Monk? They are all very hard and heavy. I have a few ideas. Rock/mineral number 1
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Jovial Monk Gold Member Offline Dogs not cats! Posts: 46772 Gender:	Re: Can you identify these rocks? Reply #7 - Yesterday at 6:53pm Number 3 could be flint and number 4 is a conglomerate—mix of bits of rock combined into a bigger rock. Lots of striations—rock is metamorphic. Like a lot of your specimens seems to be very high in silicon.
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Jovial Monk Gold Member Offline Dogs not cats! Posts: 46772 Gender:	Re: Can you identify these rocks? Reply #8 - Yesterday at 6:54pm Yes, rocks tend to be heavy
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Jovial Monk Gold Member Offline Dogs not cats! Posts: 46772 Gender:	Re: Can you identify these rocks? Reply #9 - Yesterday at 7:06pm #5 may be quartz but I only see 4 facets, not six.
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Bobby. Gold Member Offline Australian Politics Posts: 104743 Melbourne Gender:	Re: Can you identify these rocks? Reply #10 - Yesterday at 7:13pm Rock/mineral number 4
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Bobby. Gold Member Offline Australian Politics Posts: 104743 Melbourne Gender:	Re: Can you identify these rocks? Reply #11 - Yesterday at 7:31pm Jovial Monk wrote Yesterday at 7:06pm: #5 may be quartz but I only see 4 facets, not six. There are 6 facets.
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Bobby. Gold Member Offline Australian Politics Posts: 104743 Melbourne Gender:	Re: Can you identify these rocks? Reply #12 - Yesterday at 7:49pm Rock/mineral number 7
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Bobby.

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Australian Politics

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Melbourne
Gender: male

Re: Can you identify these rocks?
Reply #13 - Yesterday at 8:03pm

Jovial Monk wrote Yesterday at 6:50pm:

I DID tell the cretin that the hardness and density of the minerals is needed

6 is malachite (green bits) with maybe azurite (blue bits) or the blue-ish parts are a rock the malachite grew on.

Interesting: over time azurite turns into malachite. Now, when lapis lazuli wasn’t available artists used azurite to make blue paints. So if you have seen a classic painting with a green sky now you know why.

You have a geode that normally would have amethyst crystals in it but the color seems to have pooled in the surrounding rock.

1 could be petrified wood for all I can tell.

There are many pictures now of half of them.
Try and identify those ones better.

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Jovial Monk Gold Member Offline Dogs not cats! Posts: 46772 Gender:	Re: Can you identify these rocks? Reply #14 - Yesterday at 8:13pm Sure—hardness and density?
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