Theodore Gray (872)

These are the elements I've procured myself.

Click any element tile below to get the full entry for that element, or click on the sample picture to go directly to the description of that sample.

Text and images Copyright (c) 2007 by Theodore W. Gray.

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Toy Anhydrous Ammonia tank.
Source: Farm & Fleet
Contributor: Theodore Gray
Acquired: 25 April, 2003
Price: $25
Size: 12"
Purity: 0%

Nitrogen pressurized golf club.
Source: eBay seller psainvestments
Contributor: Theodore Gray
Acquired: 25 April, 2003
Price: $21
Size: 6"
Purity: 99%
Sample Group: Golf Equipment

Liquid nitrogen.
Source: Claudin Welding Supply
Contributor: Theodore Gray
Acquired: 15 July, 2005
Price: $5
Size: 6"
Purity: 99%

Natural sample, 21% Pure.
Source: Air
Contributor: Theodore Gray
Acquired: 18 May, 2002
Price: $0/Free like the air we breathe
Size: 2.5"
Purity: 21%

Mini welding gas cylinder.
Source: Hardware Store
Contributor: Theodore Gray
Acquired: 5 August, 2002
Price: $5
Size: 12"
Purity: >95%

Oxygen spray bottles.
Source: eBay seller oxygeninc
Contributor: Theodore Gray
Acquired: 21 March, 2004
Price: $8/3
Size: 8"
Purity: 85%
Sample Group: Medical

Aircraft emergency oxygen system.
Source: eBay seller rustnstuf
Contributor: Theodore Gray
Acquired: 23 March, 2004
Price: $20
Size: 9"
Purity: 90%
Sample Group: Medical

Emergency oxygen tank.
Source: Auction
Contributor: Theodore Gray
Acquired: 6 November, 2004
Price: $2
Size: 12"
Purity: >90%
Sample Group: Medical

Portable oxygen tank.
Source: eBay seller waveles
Contributor: Theodore Gray
Acquired: 7 November, 2004
Price: $51.50
Size: 12"
Purity: >0%
Sample Group: Medical

Mounted arc tube.
Source: Special Effects Neon
Contributor: Theodore Gray
Acquired: 22 November, 2002
Price: $35
Size: 2.5"
Purity: >90%

Bowl of liquid oxygen.
Source: Claudin Welding Supply
Contributor: Theodore Gray
Acquired: 15 April, 2006
Price: $15
Size: 8"
Purity: 99%

Aerogel.
Source: eBay seller oboyoberta
Contributor: Theodore Gray
Acquired: 5 January, 2006
Price: $37.50
Size: 1"
Composition: Si O₂

Brookite.
Source: eBay seller crystaldigger
Contributor: Theodore Gray
Acquired: 20 September, 2005
Price: $29
Size: 2.2"
Composition: Ti O₂

Euxenite.
Source: eBay seller minwreck
Contributor: Theodore Gray
Acquired: 20 September, 2005
Price: $20
Size: 0.75"
Composition: (Y,Ca,Ce,U,Th)(Nb,Ta,Ti)₂O₆

Borosilicate glass Medallion.
Source: Theodore Gray
Contributor: Theodore Gray
Acquired: 26 October, 2008
Price: $1
Size: 2.5"
Composition: Si O₂+Na2[B4O5(OH)4]

Celestine from Jensan Set.
Source: Jensan Scientifics
Contributor: Theodore Gray
Acquired: 19 November, 2008
Price: Anonymous
Size: 1"
Composition: Sr S O₄

Crocoite from Jensan Set.
Source: Jensan Scientifics
Contributor: Theodore Gray
Acquired: 30 October, 2008
Price: Anonymous
Size: 1"
Composition: Pb(Cr O₄)

Scheelite from Jensan Set.
Source: Jensan Scientifics
Contributor: Theodore Gray
Acquired: 30 October, 2008
Price: Anonymous
Size: 1"
Composition: Ca[W O₄]

Monazite Crystal.
Source: eBay seller mineralman999
Contributor: Theodore Gray
Acquired: 20 September, 2005
Price: $140
Size: 1.5"
Composition: (Ce,La,Nd,Th)P O₄

Quicklime.
Source: eBay seller lauram300
Contributor: Theodore Gray
Acquired: 8 May, 2007
Price: $36
Size: 1"
Composition: Ca O

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