What rock is this ? Any Geologists here

easyrider · 16 Oct 2017 at 20:14

I want to be able to identify it as I want to use it in my waterfall or pond if possible.

Diddums · 16 Oct 2017 at 20:21

Crack.

koolpc · 16 Oct 2017 at 20:30

It's a hard rock!

peterwalkley · 16 Oct 2017 at 20:30

They're minerals.

LeMson · 16 Oct 2017 at 20:32

Rock rock!

Beans on toast Dave · 16 Oct 2017 at 20:32

rock lobster?

kindai · 16 Oct 2017 at 20:33

How heavy is it? Kinda looks like pumice.

Chalk maybe?

Sasahara · 16 Oct 2017 at 20:33

Fossiliferous limestone, or some type of sandstone?

Amp34 · 16 Oct 2017 at 20:35

Quartzite or Limestone?

Difficult to tell with those images.

Can you scratch it with a pen knife. If you can it's probably predominantly calcite and possibly a Limestone of some kind. If not then its possibly made of quartz and may be a Quarzite.

If you can take an unblurry close up it may help.

LabR@t · 16 Oct 2017 at 20:37

Diddums said:
Crack.

Jesus, imagine the cost of that!

Vonhelmet · 16 Oct 2017 at 20:39

peterwalkley said:
They're minerals.

Good work.

FurryLemon · 16 Oct 2017 at 20:43

Common quartz I'd expect.

chief barker · 16 Oct 2017 at 20:45

Vonhelmet said:
Good work.

You need to get out more.

Vonhelmet · 16 Oct 2017 at 20:51

chief barker said:
You need to get out more.

It's dark and windy just now, but I'll leave the house tomorrow, don't you fret.

Whitewater · 16 Oct 2017 at 20:52

Does it taste of salt?

Arazi · 16 Oct 2017 at 20:53

Gold!

Mr Badger · 16 Oct 2017 at 20:55

Queen false widow rock - my dad quarries them for a living.

Amp34 · 16 Oct 2017 at 21:06

FurryLemon said:
Common quartz I'd expect.

Quartz is a mineral, not a rock.

koolpc · 16 Oct 2017 at 21:14

A big lump of chewing gum?

Efour · 16 Oct 2017 at 21:16

sandstone
quartzite
limestone
something with a lot of calcy/quartz cement

spray it with acid and smack the crap out of it with a hammer*

*won't look good in fishtank then

What rock is this ? Any Geologists here

Sgarrista