Find your diamond
Find your jewelry
shape
carat
color
clarity

In need of expertise

M

Mineral seeker

Rough_Rock
Joined
Nov 21, 2017
Messages
6
About this rock. Due to either the lack of available information or my lack of know how, this rock has been directly drilled with various sizes bit, struck numerous times with a cutting wheel from an angle grinder as well as a grinding wheel. Tried etching it with a knife amongst other things. All in an effort to try and discover on my own if this is a diamond or quartz.
If anybody can simply look at the video and provide their opinion, I'd be grateful. Thank you kindly.

https://photos.app.goo.gl/dhfKsG14oNYjEZSv1
 
Take it to a pawn shop and have them use a diamond tester on it.
If it IS a diamond, I hope you haven't ruined any potential value by all the beatings you've given it. How did you come to possess this stone?
 
I purchased a diamond testers online but it was cheap. I have another that is larger. A few actually so I wasn't to bashful with it. Just trying to figure it out that's all.
I out a torch to it this morning because I read that quarts will burn (leaving an actual burn mark). This didn't do that. It did turn ready hot. My temp gun only goes to 700deg F and was maxed out. It didn't break till I stepped on it with my boot at around 400deg F which left me skeptical but these natural stones have all kinds of gases within the crevices and I can't help but wonder if the expansion of the gases built enough pressure within the stone to leave it susceptible to the break along with the external force I provided. Diamond are hard but also brittle after all.
I have also soaked it in hydrochloric and sulfuric acid with wavering of it's physical properties.
I'd rather figure it out for myself than go to a pawn shop. I simply don't trust those guys.
Found at an old mining ground in Pennsylvania a year ago. Forgot I had them till recently. Figured I'd experiment for some fun.
Obviously im not overly optimistic of them actually being diamonds but it would be great to know
 
:eek2:Seems a bit much...
 
Mineral seeker said:
I purchased a diamond testers online but it was cheap. I have another that is larger. A few actually so I wasn't to bashful with it. Just trying to figure it out that's all.
I out a torch to it this morning because I read that quarts will burn (leaving an actual burn mark). This didn't do that. It did turn ready hot. My temp gun only goes to 700deg F and was maxed out. It didn't break till I stepped on it with my boot at around 400deg F which left me skeptical but these natural stones have all kinds of gases within the crevices and I can't help but wonder if the expansion of the gases built enough pressure within the stone to leave it susceptible to the break along with the external force I provided. Diamond are hard but also brittle after all.
I have also soaked it in hydrochloric and sulfuric acid with wavering of it's physical properties.
I'd rather figure it out for myself than go to a pawn shop. I simply don't trust those guys.
Found at an old mining ground in Pennsylvania a year ago. Forgot I had them till recently. Figured I'd experiment for some fun.
Obviously im not overly optimistic of them actually being diamonds but it would be great to know
Click to expand...

Can we get a pic?
 
LOL so to sum up, you've:
Drilled into it several times
Scraped it with a knife
Hit it with a several grinders
Burnt it with a torch
Smashed it under your heel.
K.

I merely suggested a pawn shop to save you from buying a diamond tester, but it seems that you've gotten one. I take it that it didn't give you the result you wanted to hear, hence the experimenting.
 
whitewave said:
Can we get a pic?
Click to expand...
The video he provided is pretty good resolution.

it doesn't have the cleaving that a diamond does but honestlly if it's already been drilled and ground on it it may rightfully look like that.
 
RetroTreeGal said:
The video he provided is pretty good resolution.

it doesn't have the cleaving that a diamond does but honestlly if it's already been drilled and ground on it it may rightfully look like that.
Click to expand...

I didn't see the link, thanks.

That is calcite (or quartz)... probably quartz given calcite has a hardness of 3. Definitely not a diamond. I'm 100% sure of that. Not a diamond. I repeat, not a diamond.
 
Last edited:
Pics of uncut diamonds how they looked pulled straight from the ground at crater of diamonds state park in Arkansas


IMG_2231.PNG IMG_2467.PNG IMG_2799.jpg
 
IMG_2476.JPG IMG_2481.JPG And my quartz I was hoping was a diamond lol
 
Oh I SO want to go dig around at Crater Lake someday!
 
Correction, I tried to drill through and cut it with a cutting wheel. No noticable signs of wear on the stone. Also, the diamond tester gave me the reading I would have wanted but it also gave me the same result for a spoon and the blade of a knife. Because of this, I could not have taken the tester seriously. The only time I affected the stone physically was when I heated it, twice actually on each side, with a torch then "stomped on it with my boot as it was cooling down at a temperature of approximately 400deg f.
I've tried everything that I've found online as well as gone above and beyond based on what little I know only to have been stuck in a limbo of conclusions..."eh, could be, might be, maybe....I dunno"
Which is why I have come to this thread in hopes there is someone who might be able to tell what it may be based on it's physical characteristics

RetroTreeGal said:
LOL so to sum up, you've:
Drilled into it several times
Scraped it with a knife
Hit it with a several grinders
Burnt it with a torch
Smashed it under your heel.
K.

I merely suggested a pawn shop to save you from buying a diamond tester, but it seems that you've gotten one. I take it that it didn't give you the result you wanted to hear, hence the experimenting.
Click to expand...
 
Cool thank you so much. I looked into all these minerals online. Out of all the examples I found of calcite, it didn't seem likely it could have been it.
The only other mineral I found online that carried many similar characteristics to diamond, as it is often found in nature, was quartz which has a hardness of 7 on the mohs scale apparently. Just for good measure I will likely ascertain some corundum to make attempts to scratch this mineral. If it does than I know for sure that I have quartz. If it doesn't and I am able to scratch the corundum, I have diamond. Diamond is approximately 20 times harder than corundum. This ought to be fun. Thanks again :-)

QUOTE="whitewave, post: 4247174, member: 57931"]I didn't see the link, thanks.

That is calcite (or quartz)... probably quartz given calcite has a hardness of 3. Definitely not a diamond. I'm 100% sure of that. Not a diamond. I repeat, not a diamond.[/QUOTE]
 
You have to put the stone on the metal plate for the diamond tester. Watch a youtube video, though as I said that is definitely not a diamond. Not even close,
 
IMG_3784.JPG IMG_3785.JPG IMG_3790.JPG I went mining for quartz in July. Here are my samples:
 
I'll definitely try the metal plate and review the video. I read the instructions that came with the tester and there was no mention

whitewave said:
You have to put the stone on the metal plate for the diamond tester. Watch a youtube video, though as I said that is definitely not a diamond. Not even close,
Click to expand...
 
These quartz minerals you have do not resemble what I have. This is why I continue to question. Im not trying to prove it's a diamond. Im trying to prove it's not.
whitewave said:
IMG_3784.JPG IMG_3785.JPG IMG_3790.JPG I went mining for quartz in July. Here are my samples:
Click to expand...
 
IF it were diamond and you drilled and torched and crumbled it into dust, it wouldn't be worth much.

If you scratch your corundum proving it is harder than corundum, you have scratched your corundum.
 
Was this found in a locale where diamonds are even possible?

The most common mineral confused with diamonds is quartz. It really looks like quartz based on the dull luster and shape/texture of the surfaces. The size also leads away from diamond as most crystals are quite small (under 9 mm and 2.3 grams in weight, if I recall my basics properly). The definite test is that quartz crystals have 6 sides and diamonds 4.

Not being able to drill or cut it does not tell you much until you know what the surface of the cutter is made from. Many minerals shrug off a steel cutter.
 
Was there ever a volcano in PA? If not, then it is not a diamond.
 
You must log in or register to reply here.
GET 3 FREE HCA RESULTS JOIN THE FORUM. ASK FOR HELP
Jewelry Blog
PriceScope-Concierge-Ad
Find prime cuts.
Top