Joined: Sun Jul 09, 2006 11:19 am Posts: 273 Location: Michigan & Arizona
As a follow-up to the Villiaumite I posted under the "photos" topic, here is another obscure gem material that might make an interesting quiz.
Now, what can I say about this one. Well, like Villiaumite it is not usually seen as a cut stone. It's RI and SG are both relatively low but it is a natural material and hasn't been treated. It's African in origin.
That's pretty vague but might be good for a few guesses, I'll add more info later.
Joined: Sun Jul 09, 2006 11:19 am Posts: 273 Location: Michigan & Arizona
Barbra, of course more info was to follow, the intro was just a bit of a teaser. Curious as to what the initial guesses would be - and low and behold it was our self-proclaimed "village idiot" which called it.
This is faceted Gaylussite, an evoraporite (so sedimentary I guess) from the seasonal Lake Amboseli in Kenya.
RI: 1.444, 1.515
SG: 1.96
Moh's hardness: 2.5
Water Soluble
I'll have to make it tougher next time. Already have a few in mind
Ben - you're right, I just started playing with the avatars yesterday. This is a Chrome Diopside that I had on the site a couple of months ago. Some pictures I just always like.
Oh and jett, I think you should get a color change garnet as well - now to find someone to give you one
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