My findings in Brasil

[pg81]

After a wisitt to my girlfriends village,famous for its opals i got the chance to go to here aunts farm,close by there was a smal creek/river hidden in the forest,full of stones,mostly quartz.



Well,to be honest,the only stone i find personaly was the little one in the midle,in the begining i was wery exited,beliving i had found a emarald,turns out its a tourmaline,
the two others was gift from my girlfriends mother, the one to the left is a aquamarine (she says) :-) but i have no idea what the yellow one could be,i have never seen something similar before,
anyone knows what it could be?
all the 3 stones was found in the same creek.

 

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[Rasputin]

In Brazil it could be anything. I would have spent every daylight hour in that creek.

 

[pg81]

yes its a intresting spot, i will definitely return to the creek when i go back to Brazil in november, i used just 5-10 minuts before i found the tourmaline,only good knows what could be hidden there :-)

 

[kingskid1611]

Is it something like amber? It looks like petrified tree sap. I have a hunk I found years ago with a fly persevered in the middle of it.

 

[huntsman53]

The clear stone on the left if Beryl would be Goshenite as I see no blue/green tint to it. The stone on the right might possibly be Peridot.


Frank

 

[pg81]

Thanks for the answers.
The one to the left have some "bluish" in it,but my first pics didnt show this so good.


on this two pics the collor shows better (i hope), i included the quartz just for a collor reference.




And the amber/peridot tip is proberly the answer for the yellow one.

 

[BurntBear]

Very cool specimens! It must be exciting to look for minerals in Brazil. I can see the blue in the first stone; could be Aquamarine. The yellow stone is likely Citrine; not Peridot. A simple specific gravity test would easily distinguish between Citrine (Quartz) & Peridot because Peridot is very dense. Most importantly, finding Peridot with that kind of transparency would probably land you in the record books.

"Olivine in general is a very abundant mineral, but gem quality peridot is rather rare. This is due to the mineral's chemical instability on the Earth's surface. Olivine is usually found as small grains, and tends to exist in a heavily weathered state, unsuitable for decorative use. Large crystals of forsterite, the variety most often used to cut peridot gems, are rare; as a result olivine is considered to be precious."

 

[Eu_citzen]

Your yellow one could be citrine or heliodor, that would be my first thought.