quartz? crystal?

[kiddrock33]

any rock experts? is this naturaly shaped?

 

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[DANGLANGLEY]

WOW, can't tell ya but I sure do like it...

 

[Cynangyl]

OMG that thing is huge!! I can't answer your question but boy howdy that is a huge rock!

 

[dg39]

Quartz crystal. Thats my guess. Like this one. Just much bigger!
DG

 

[goldgrubber]

Looks like a big "Herkimer Diamond" quartz crystal to me. A big version of the ones I posted in the rock forum. Yes, it is naturally faceted like that. Nice!!!

 

[PBK]

Quartz crystal. Here's one priced at $1,975.

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[Montana Jim]

 

[wesfrye53]

Determination might depend on where you found it. I grew up in Charleroi, PA and there used to be a Corning Glass plant there.My Mother spent hours and hours collecting waste glass of all shapes, sizes, and colors; some as large as your piece. That was my first thought when I saw the photo. Hope this helps.

 

[warsawdaddy]

Did you find the setting it came out of?

 

[sodbuster]

I call this one two feathers indian quarts.
http://i7.photobucket.com/albums/y283/gunclickrick/iniantwofeathersquarts003.jpg
http://i7.photobucket.com/albums/y283/gunclickrick/iniantwofeathersquarts001.jpg

http://i7.photobucket.com/albums/y283/gunclickrick/iniantwofeathersquarts002.jpg

 

[Eu_citzen]

Yup Quartz, seems like you also have partly smokey quartz or citrine. Hard to tell...

 

[Bluezman]

Makes me want to chisel it into a skull!

Bluezman

 

[dukeofearl1946]

That is quite a find. I have lotsa quartz and they each have their own special powers. Most of the stones that size have significant value. Did it come from the Quachita Mtns. in Arkansas? There are many mines there and folks come from all around to find their special stones. There is one on display in a famous church in NYC that came from Mt Ida, Arkansas.--Quartz Capital of the World.

 

[silverswede]

If there is a geologist around here the quick I.D. would be forthcoming as the large crystals are usually found in underground mines in pockets called "vugs". I received some similar to this from a mine geologist but the material was called Florite. I guess it quite a thrill underground when they drill into one of these Vugs.

 

[Eu_citzen]

you mean FLUORITE silverswede
Heres most that you'll need to and want to know:
http://www.webmineral.com/data/Fluorite.shtml

I hope an amateur geologist will do!

 

[bill gent]

cant see much but might agree with wesfrye i have a huge sample of glass that is rock chaped

 

[Capefearsman]

Wow!! That is huge!!

 

[justine093]

Very nice. The crystal point is what is called a termination. Typical quartz crystal is rhombohedral and is 6-sided prism ending in 6-sided pyramid. Crystals with a point on either end is double terminated. Very nice crystal. Wherever it came from, guarenteed, there are more. These grow in pockets in the earth...crystal structures like this and geodes are formed when gases get trapped into a pocket in the earth, heated, cooled, and depending on the components, will decide on the mineral that would come out. Crystal like this always grow in clusters.

Quartz is one of the most common minerals in the earth.
You have a very nice specimen.

 

[Eu_citzen]

cant see much but might agree with wesfrye i have a huge sample of glass that is rock chaped

Maybe Tektite?
http://www.meteorite.com/tektites/index.htm

Yeah a common mineral, sometimes associated with gold as almost the same forces are required to make them.

 

[yoyom]

its look like a big smokey quartz ,
how you could knaw, probably if you scratch iron with it ,
because quartz is harder then iron