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Unidentified bi-colored black stone

0 votes

Hi, my friend gave me this necklace with a black stone with a halo in the center of a different color that she thought was Unakite. After looking up Unakite, we've decided it couldn't be it so we are at a loss as to what stone it is!

Any information would help!

the tigers' eye looking streak in the photo is just an effect of the flash :)

Katalt text

asked Aug 3, 2012 by Mourning_Star (720 points)

Took it to a jewelry today who said maybe labradorite based on sight, what do you think?

No it's definitely not smokey quartz! Looked into jet and perhaps labradorite due to the halo in the center.

** IMPORTANT : The small halo ring you see in the center of the rock is NOT due to the camera's flash NOR lighting... it can be seen with any proper lighting. The soft hues it produces as far as colors goes makes me unsure as to what rock it could be.

** Also note: The brown edge toward the bottom screen on the rock is NOT THERE - it's probably just a reflection from the camera's flash.

4 Answers

0 votes

hi ! what do you think about smoky quartz or obsidian or even opal?!

answered Aug 5, 2012 by Tarja (200 points)

they're right, smokey quartz is mostly translucent - this one photo above is definitely opaque (minus the halo ring of shimmering colors that form in the center).

Opal is the same deal - it's usually a off-white stone and soft/fragile. From feeling alone, you could smack something with my rock and it won't shatter into a million pieces.

0 votes

It looks like black onyx, but I guess it could be any black gemstone such as jet, melanite garnet, or obsidian. Smoky quartz is translucent, so that is ruled out. And black opal is not solid black, and has play of color.

answered Aug 6, 2012 by hershel (45,560 points)
0 votes

No way it could be smoky quartz as smoky quartz is translucent to transparent not opaque nor is smoky quartz ever all one shade or naturally black. Maybe jet but jet doesnt change colours. I would say in my opinion maybe rainbow obsidian or potentially onyx but once again onyx doesnt really change in the light so probably not. Prehaps even nuummite which does change in the light.

answered Aug 25, 2012 by Black Curtain (180 points)

I have never heard of Nuummite, where can I look into that type of stone?

0 votes

It is (almost certain) rainbow obsidian. Nice piece of stone too.

answered Mar 19, 2014 by Renata (7,820 points)

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