OneGuyFromBarlick

Quartzite Stone Rock ?

Trying to get in quick before Tizer wakes up

Sorry Cathy but no. Dig deeper!

Is it just pure white Quartz? Man made.

Cathy, you are correct in that it is a geological sample. Strictly speaking it is a silicate. Clue, think unusual crystal.

I thought crystal, then changed my mind because only a tiny part of it looked like a crystal, to me. Oh well... I’ll take 1/2 a point anyway.

Asbestos? Chrysotile? It's a very pure specimen if that is what it is.

Okenite?

Thank God! Kev has got it. Yes, see THIS link.
Next one?

Stanley wrote: ↑08 Oct 2020, 13:01 Thank God! Kev has got it. Yes, see THIS link.
Next one?

Only after all the clues from everyone else

But you got it Ken.
I wonder where Peter was yesterday? He would have got it straight away I think.

I've been distracted during the last few days but I've got more time now. I have to admit that when I looked at Stanley's last object okenite didn't come to mind, even though I'm familiar with hundreds of minerals!

My geological idol has feet of clay!



Try this one.

Stanley wrote: ↑09 Oct 2020, 02:34 But you got it Ken.

Not me I didn't have a clue. Thought it was an upmarket toilet brush. It was Kev who gave the right answer.

Sorry both of you.... Eyes again!

Natrolite?

Just a short interlude while you're discussing your minerals (is it in a cave somewhere?) this was a mystery object to my grandson

Good old fashion brace and auger bits. A bit spooky or nearly spooky. After putting a shelf up for Mrs P. she tried to claim my gimlet tool just in case she wanted to put some cup hooks in it.
Gimlet (tool)
A gimlet is a hand tool for drilling small holes, mainly in wood, without splitting. It was defined in Joseph Gwilt's Architecture (1859) as "a piece of steel of a semi-cylindrical form, hollow on one side, having a cross handle at one end and a worm or screw at the other". A gimlet is always a small tool.

Sorry but no Peter, more common than that.
That's a posh gimlet you've got Ken, all the ones I have ever seen were like a small sharp screwdriver.

Reminded of Iceland Spar crystals. Calcium Carbinate. Brings back memories of school chemistry.

Even more common than that Ken. Clue, look at the bloke and think about size.

Gypsum

Once again Kev gets it. The Cave of Crystals in Mexico. (LINK) They are some of the biggest crystals in the world and formed from Gypsum.
Next one?

If you found an unusual concentration of these in the ground what would it signify to you?

Ancient river bed, of glacial origin.

No Maz, sorry. The key is 'unusual concentration'.