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| HOME : FORUM : COMMUNITY : Archives : Mineralogy Photo Gallery : Look at my "Valentine Rock"!! |
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Look at my "Valentine Rock"!!
Post#1 @
02-05-05
, 10:54 AM
THIS forum that hasn't seen much activity!  Here's a rock I bought years ago in a stone shop...thought it might be fun to share for Valentines.. The stone is black (agate, maybe?), one side is cut with a cleft and at certain angles to reveal irridescent interior layers that form a heart image. I took this with a flash. In real life the heart is more subtile, and only visible when the stone it tilted at certain angles to the light. I've long forgotten any details..can anyone tell me what it is? Was it treated? Anyway, sorta fun...Happy Valentine's Day, everybody! widget |
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Post#2 @
02-05-05
, 11:38 AM
I don't know what kind of rock that is, but I love it and I want one! That heart shape is so fabulous! Very pretty. 
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Post#3 @
02-06-05
, 09:41 AM
Thanks for Sharing Widget! Happy Valentine's day to all of DT |
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Post#4 @
02-06-05
, 08:11 PM
I believe that is a very nice piece of rainbow obsidian. |
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Post#5 @
02-06-05
, 08:20 PM
Thanks, Phoenix!! That does sound familiar...the obsidian part, anyway. Here's a picture I took of it outside in direct, bright sunlight. The heart obviously shows up better, and interestingly, the "black" turns out to be a deep, almost transluscent green. You can see the color striations in this shot, too... (edited to add) BTW...You sound like someone who might know...are these things color treated in any way? widget |
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Post#6 @
02-06-05
, 11:31 PM
how cool is that!! I want one too! Widget you find the coolest things! |
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Post#7 @
02-07-05
, 11:24 AM
Here is a definition I stole from my favorite rough dealer New Era Gems. RAINBOW OBSIDIAN: Obsidian comes from the Greek "Opsianos", meaning vision, because Obsidian was used to make mirrors. Obsidian has been used as far back as the Neolithic period, where it was used to fashion arrowheads and daggers. So, as you can see, even the ancient cultures found many purposes for Obsidian. Our Rainbow Obsidian contains bands of chatoyant color, ranging from purple, to blue, to green, and even some orange bands of color. The cause of these colors is the richness of lamellar crystallites parallel to the flow structure. This is why proper orientation is necessary to bring out the striking rainbow colors. This material comes from Mexico and has a hardness of 6. Please note that we have polished most of the pieces in the photograph to display the color to its full advantage, but that we are selling rough material without polished faces. The polishing was done for photographic purposes only. Im also attaching another picture similar to your piece. |
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Post#8 @
02-07-05
, 11:54 AM
WOW!  Look at the color!! Thanks, Phoenix! I went to the website you mentioned (neat!) and loved the picture of the rainbow obsidian rough with some polished sides..I'll try to post it here...I don't know if "gif" pictures work.. widget |
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What cool specimens!!
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