Yes, thank you! That should help me outglaciergary wrote:Slate is harder than shale. You can't necessarily tell by the color. Also, when wet, shale may have an earthy smell. Slate also may have a very slight sine to it, and is often flatter. If you are lucky, the telltale sign would be if shale has any fossils. While slate can have fossils, they would be deformed, and are rare.
Hope this helps.
Gary Vorwald
NYS Rock & Mineral Supervisor
<quizbowl> ey kid ya want some shortbread
<EASTstroudsburg13> I don't know why, but I just can't bring myself to delete this post.
I wouldn't call it exceptionally common, but vesicular basalt fits that description well.mnstrviola wrote:This is a question for Awesome Aquifers, but I'd figure it would be better to ask here.
What's a common rock/mineral that has a relatively high porosity but low permeability? It could have lots of pore spaces but they wouldn't be interconnected.
<quizbowl> ey kid ya want some shortbread
<EASTstroudsburg13> I don't know why, but I just can't bring myself to delete this post.
I've also heard pumice as the classic example of that. Not that there would ever really be a large underground body of pumice.quizbowl wrote:I wouldn't call it exceptionally common, but vesicular basalt fits that description well.mnstrviola wrote:This is a question for Awesome Aquifers, but I'd figure it would be better to ask here.
What's a common rock/mineral that has a relatively high porosity but low permeability? It could have lots of pore spaces but they wouldn't be interconnected.
Yeah, it's kinda depressing.hexagonaria wrote:It amazes me how many "crystal healing" websites there are out there.
Never. There will never ever be a question about that. Ever.tuftedtitmouse12 wrote:Lol, healing information that makes you depressed...
Anyways, since there are so much info on crystal healing, do you think there may be a slight chance that some questions we might get on our test will contain some of that?
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