Help with identification please

[Bluestreaker545]

Can someone help me identify these rocks from an old collection I have ?

Cheers BS545

 

[silver]

1st one looks to be a metamorphasized sedimentary rock with opal(maybe).
2nd one is pretty and the 3rd one is amethyst.

 

[TheFossickingKid]

Looks like the second one is Dioptase

 

[Oldfella]

Could be wrong, but the 2nd one looks like Emerald.

 

[Dughug]

1. Boulder Opal that looks like it's from Yowah or Opalton

2. Dioptase

3. Amethyst

I agree with Silver the 2nd one is pretty!

 

[Bluestreaker545]

Thanks for the feedback, Im pretty sure there all from Australia, do they have any value ? the green stone is approx. 7cubic mm and the possible opalised rock isn't deep but has seams throughout it. The amythest piece is approx 100mm by 75mm.
Not that Im looking to part with but just out if interest.

Cheers BS545

 

[Lefty]

1 is boulder opal and 3 is amethyst - I don't know exactly what the second is but it looks like emerald. It also looks like the dioptase that I've seen but I don't know much about either stone and don't know if emerald crystals should be that shape or not. It certainly is a nice colour!

 

[Piep]

Emerald is in the Beryl family, with aquamarine and heliodor etc. Its crystals are hexagonal, where the crystals in yours are trygonal. Yours are dioptase. http://www.mindat.org/min-1295.html
The big specimen in your first pic is boulder opal; the one in the background is dioptase.
The 3rd specimen is (a rather beautiful) amethyst cluster with hematite inclusions.

 

[Heatho]

Yeah I'm pretty sure they are not in the Beryl family either. I'd say Dioptase as well from google pics. Nice specimens.