Gemstone Trivia Question #2! How much do you know???

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Gemstone Trivia Question #2! How much do you know???

Postby TanacyGems » Wed Jan 02, 2008 9:56 pm

Gemstone Trivia Question # 2

RULES~no looking answers up online :D

There is a fairly common mineral that is found in several parts of the world. However, there are a few carats of this gemstone that were found in a meteor. This is the only extraterrestrial gemstone known to man. What is it?
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Re: Gemstone Trivia Question #2! How much do you know???

Postby mike4bears » Wed Jan 02, 2008 10:35 pm

no fair i don't know where to look for the answer. anyway i would say ruby. :D :roll:
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Re: Gemstone Trivia Question #2! How much do you know???

Postby Iceopals » Wed Jan 02, 2008 11:16 pm

Moldevite???
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Re: Gemstone Trivia Question #2! How much do you know???

Postby TanacyGems » Thu Jan 03, 2008 12:17 am

Not ruby Mike,
Ice, that sure sounds extraterrestrial, but nope! Keep trying!
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Re: Gemstone Trivia Question #2! How much do you know???

Postby mike4bears » Thu Jan 03, 2008 1:57 am

OK second guess and i do mean guess. garnet if i spelled that right mike
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Re: Gemstone Trivia Question #2! How much do you know???

Postby TanacyGems » Thu Jan 03, 2008 4:16 am

Yep Mike you spelled it right! Nope Mike wrong answer! :wink:

HINT: Semi-Precious gemstone that comes in only 1 color
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Re: Gemstone Trivia Question #2! How much do you know???

Postby mike4bears » Thu Jan 03, 2008 7:54 am

well i was only half wrong. :wink:
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Re: Gemstone Trivia Question #2! How much do you know???

Postby CPBlackOpal » Thu Jan 03, 2008 1:36 pm

is it quarts
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Re: Gemstone Trivia Question #2! How much do you know???

Postby TanacyGems » Thu Jan 03, 2008 5:14 pm

lol Mike, guess that's better than none

CP, nope not Quartz. Quartz comes in a variety of colors, but good try :D

I'll pass out another hint soon
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Re: Gemstone Trivia Question #2! How much do you know???

Postby azvinnie » Thu Jan 03, 2008 8:54 pm

How 'bout peridot. Just sent my nephew a ring I designed for his birthday last August.

Well -didn't just send it. It actually got there on time... .
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Re: Gemstone Trivia Question #2! How much do you know???

Postby Yankee42 » Thu Jan 03, 2008 9:04 pm

I would have to say Amethyst....
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Re: Gemstone Trivia Question #2! How much do you know???

Postby TanacyGems » Thu Jan 03, 2008 9:07 pm

Yeah AZ!! You are correct! :D

Some gems are even rarer than this. A few are so rare that only two or three examples are known to exist. One factor collectors take into consideration is the site the material came from. With this in mind, you have still more exceptionally rare gems. For example, peridot is a fairly common mineral that is found in several parts of the world. However, there are a few carats of peridot that were found in a meteor. Extraterrestrial peridot is a very rare gem indeed!


Possibly the most unusual peridot is that which comes from meteorites called pallasites. Some have even been facetted and set in jewelry, the only extraterrestrial gemstones known to man.


A pallasite is a type of stony-iron meteorite. It consists of cm-sized olivine crystals of peridot quality in an iron-nickel matrix. Coarser metal areas develop Widmanstätten patterns upon etching. Minor constituents are schreibersite, troilite and phosphates. Pallasites were once thought to originate at the core-mantle boundary of differentiated asteroids that were subsequently shattered through impacts. An alternative recent hypothesis is that they are impact-generated mixtures of core and mantle materials.[1] They are named for the German naturalist Peter Pallas (1741-1811), who located in 1772 a specimen near Krasnojarsk in the mountains of Siberia that had a mass of 680 kg[2]. The Krasnojarsk mass described by Pallas in 1776 was one of the examples used by E.F.F. Chladni in the 1790s to demonstrate the reality of meteorite falls on the Earth, which were at his time considered by most scientists as fairytales. This rock mass was dissimilar to all rocks or ores found in this area (and the large piece could not have been accidentally transported to the find site), but its content of native metal was similar to other finds known from completely different areas.

HERE'S A PIC OF PALLASITE

Image
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Re: Gemstone Trivia Question #2! How much do you know???

Postby Yankee42 » Thu Jan 03, 2008 9:13 pm

Wow, that is some really cool looking stuff. What is the value of that type of material?
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Re: Gemstone Trivia Question #2! How much do you know???

Postby TanacyGems » Thu Jan 03, 2008 9:21 pm

I agree! I think's it's amazing looking!
Here's the info on this particular piece. it's up for sale, just wish it was from me :lol:

Simply the BEST, Museum quality, huge 167 gram Imilac full slice! Here is an opportunity to add an exceptionally beautiful crusted full slice of Imilac Pallasite to your collection. This huge specimen has been expertly prepared and you won't find a better quality Imilac anywhere! This slice has been cut to give you the optimal surface area to weight ratio, and it has a huge display surface full of lovely translucent olivine crystals. Approximate dimensions at widest points are 12.5cm x 11.5 cm x 0.2cm.

Price: $8995.00 :mrgreen: :oops:
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Re: Gemstone Trivia Question #2! How much do you know???

Postby Iceopals » Fri Jan 04, 2008 12:08 am

Huh!!!!! I think I had seen this somewhere, I think I had seen some for sale on ebay at one time. It is sooooo cool, wouldn't that be great in jewelry!??!?!?!!! 8) I LOOOOOOOOOOOOOOOVE THIS GAME!!!! Hey, Tanacy, thanks for taking the time...........
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