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Don Lum

Joined: 03 Sep 2012
Posts: 2900
Location: Arkansas



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Posted: Dec 10, 2013 23:31 Post subject: Interesting Crystals |
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My wife found these neat crystals behind my office yesterday and took these pictures. She left it up to me to identify them.
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Dihydrogen monoxide (DHMO), crystalline Jefferson County, Arkansas, USA 9 x 8 cm with inclusion of Pinus taeda needles |
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Dihydrogen monoxide (DHMO), crystalline Jefferson County, Arkansas, USA 9 x 8 cm with inclusion of Pinus taeda needles |
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10779 Time(s) |

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Dihydrogen monoxide (DHMO), crystalline Jefferson County, Arkansas, USA 9 x 8 cm with inclusion of Pinus taeda needles |
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Dihydrogen monoxide (DHMO), crystalline Jefferson County, Arkansas, USA 10 x 7 cm with unknown inclusions |
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Dihydrogen monoxide (DHMO), crystalline Jefferson County, Arkansas, USA 10 x 7 cm with unknown inclusions |
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Peter Megaw
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Joined: 13 Jan 2007
Posts: 973
Location: Tucson, Arizona



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Posted: Dec 11, 2013 00:11 Post subject: Re: Interesting Crystals |
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Interesting nucleation on the pine needles...at first I thought we might be dealing with a new Evergreen Twin law of some kind!
Certainly the most common ephemeral mineral with the flexibility of its ready transitions from crystalline to liquid to gaseous state being the fundamental basis of our very existence.
Given that a human being is about 93% composed of these molecules it might be a tough call as to whether superb crystals like this...or an uncrystallized assemblage of the same stuff that comprises a less rigidly ordered woman or man is more beautiful. Actually, for myself and I suspect/hope for most of us, despite our passion for minerals our love for our partners in crime...or at least facilitators...trumps hard cold crystals.
Happy Holidays Allison...and to you all...and may you remain uncrystallized for some time to come!
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Pierre Joubert
Joined: 09 Mar 2012
Posts: 1605
Location: Western Cape



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Posted: Dec 11, 2013 02:24 Post subject: Re: Interesting Crystals |
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Excellent Don! Interesting photos. Your wife has good humor. It looks like you work in beautiful surroundings.
I must just add, beautiful words Peter!
_________________ Pierre Joubert
'The tree of silence bears the fruit of peace. ' |
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Mark Ost

Joined: 18 Mar 2013
Posts: 516
Location: Virginia Beach



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Posted: Dec 11, 2013 06:41 Post subject: Re: Interesting Crystals |
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Of course these very rare minerals are only stable at the pressure and temperature regime that they formed at. Any variance will cause a phase shift that may alter the habit of this mineral making it somewhat less valuable as an economic basis for national currency standards. That said, there are those who feel this to be one of the only constants in a highly dynamic monetary market. Long used as an adulterant for alcohol in certain industrial processes familiar to any geologist worth the title, it has retained it's value over an extended period of time and nationalities. Early reports of a process that turns this mineral into wine have proved difficult to replicate.
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Don Lum

Joined: 03 Sep 2012
Posts: 2900
Location: Arkansas



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Posted: Dec 11, 2013 11:09 Post subject: Re: Interesting Crystals |
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Peter Megaw wrote: | Interesting nucleation on the pine needles...at first I thought we might be dealing with a new Evergreen Twin law of some kind!
Certainly the most common ephemeral mineral with the flexibility of its ready transitions from crystalline to liquid to gaseous state being the fundamental basis of our very existence.
Given that a human being is about 93% composed of these molecules it might be a tough call as to whether superb crystals like this...or an uncrystallized assemblage of the same stuff that comprises a less rigidly ordered woman or man is more beautiful. Actually, for myself and I suspect/hope for most of us, despite our passion for minerals our love for our partners in crime...or at least facilitators...trumps hard cold crystals.
Happy Holidays Allison...and to you all...and may you remain uncrystallized for some time to come! |
Thank you for your excellent response, Dr. Megaw. I only have two responses: one, nice picture of Allison and two, you are a very lucky man.
Merry Christmas to you and your family. I hope Lauren makes it home safely from college.
Sincerely yours,
Don
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Don Lum

Joined: 03 Sep 2012
Posts: 2900
Location: Arkansas



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Posted: Dec 11, 2013 11:12 Post subject: Re: Interesting Crystals |
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Thanks for your comments, Pierre and Mark. When I first saw these crystals I thought of Japan Law Twin. I did not have my protractor handy, however, so I didn't measure the angle.
Don
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Ed Huskinson

Joined: 15 Apr 2009
Posts: 318
Location: Kingman, Arizona



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Posted: Dec 11, 2013 15:55 Post subject: Re: Interesting Crystals |
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Nice photo of Allison, Pete. Thanks for sharing.
Ed in Kingman
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Ed |
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