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1,823 questions

3,207 answers

846 comments

9,073 users

need to identify this stone ( with extra pic. as mr. hershel asked).waiting any help.

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I magnify the 3 color inside the stone.

asked Mar 15, 2014 by ahmad (1,260 points)

6 Answers

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Ahmed, can you please post a few more pictures? Perhaps that will give a better indication of the crystal structure...

answered Mar 17, 2014 by hershel (47,740 points)
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Looks mostly like quartz, but there are some interesting crystal faces. Can you give any more information such as locality and hardness?

answered Mar 19, 2014 by hershel (47,740 points)
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1_It scratch knife (harder than knife). 2-And it is from saudia arabia. 3-Wight is 1.4kg. 4-Crystal is very clear. 5-It give sometimes tanzanite and some other time give topaz on presidium thermometer. 6- clearly you can see three colores blue and yelow and violate inside the crystal.

answered Mar 19, 2014 by ahmad (1,260 points)
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Thanks. I still think its most likely quartz. There are often iridescent colors inside a flaw plane within a crystal so the three colors inside the crystal are probably from that. Do you have any pieces of quartz to use to do another scratch test?

answered Mar 20, 2014 by hershel (47,740 points)
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Hershel; what is the brown outer layer on the crystal? Iron ore?

answered Mar 20, 2014 by Renata (7,840 points)
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Yes, most likely iron ore, such as limonite staining. Usually easy to remove with super iron out...

answered Mar 21, 2014 by hershel (47,740 points)
 


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