By Purity of Purest Sample (120)

Here are the elements sorted in order of the purity of the most pure sample of each. In some cases the purity is accurately known, either from the original supplier in case of samples from chemical companies, or because I've had it measured. But in many cases it's not much more than an educated guess. For the small number of salts and other compounds, I've been pretty sloppy in estimating the percentage of the element in the compound: It could of course easily be calculated based on the chemical formula and atomic weights.
I currently have a total of 2379 samples representing 118 different elements.

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) 2010 by Theodore W. Gray.
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Molybdenum
Molybdenum High purity button
(99.995%)

Source: Kaistar R&D
Contributor: Kaistar R&D
Acquired: 6 August, 2004
Price: Donated
Size: 0.75"
Purity: 99.995%
Sulfur
Sulfur Beautiful granules
(99.99%)

Source: Frank Liebscher
Contributor: Frank Liebscher
Acquired: 28 January, 2004
Price: Donated
Size: 3"
Purity: 99.99%
Iron
Iron Zone-refined iron
(99.99%)

Source: Ethan Currens
Contributor: Theodore Gray
Acquired: 28 February, 2009
Text Updated: 1 March, 2009
Price: Anonymous
Size: 3"
Purity: 99.99%
Cobalt
Cobalt Sputtering target
(99.99%)

Source: Ethan Currens
Contributor: Ethan Currens
Acquired: 30 September, 2007
Text Updated: 19 November, 2007
Price: Donated
Size: 2.5"
Purity: 99.99%
Nickel
Nickel Zone refined nickel bar
(99.99%)

Source: Ethan Currens
Contributor: Theodore Gray
Acquired: 28 February, 2009
Text Updated: 1 March, 2009
Price: Anonymous
Size: 4"
Purity: 99.99%
Zinc
Zinc Crow's foot zinc
(99.99%)

Source: Theodore Gray
Contributor: Theodore Gray
Acquired: 1 December, 2006
Text Updated: 14 January, 2007
Price: $0.10
Size: 3"
Purity: 99.99%
Strontium
Strontium Dendritic crystal
(99.99%)

Source: Frank Liebscher
Contributor: Frank Liebscher
Acquired: 28 January, 2004
Text Updated: 4 May, 2007
Price: Donated
Size: 1"
Purity: 99.99%
Yttrium
Yttrium Concave Lump
(99.99%)

Source: George (not 007) Lazenby
Contributor: George (not 007) Lazenby
Acquired: 20 November, 2002
Price: Donated
Size: 0.75"
Purity: 99.99%
Zirconium
Zirconium Corrosion test token
(99.99%)

Source: eBay
Contributor: Theodore Gray
Acquired: 19 November, 2007
Text Updated: 19 November, 2007
Price: $10
Size: 1"
Purity: 99.99%
Ruthenium
Ruthenium Very fine powder technically sponge
(99.99%)

Source: David Franco
Contributor: Ed Pegg Jr
Acquired: 16 August, 2002
Price: $22
Size: 0.5"
Purity: 99.99%
Sample Group: Powders
Tin
Tin Link in multi-metal chain
(99.99%)

Source: eBay seller kingendymion
Contributor: Theodore Gray
Acquired: 9 August, 2003
Text Updated: 20 February, 2006
Price: $10/pound
Size: 3"
Purity: 99.99%
Sample Group: Multi-metal Chain
Iodine
Iodine Small crystals,  99.99%
(99.99%)

Source: David Franco
Contributor: David Franco
Acquired: 11 June, 2002
Price: Donated
Size: 0.05"
Purity: 99.99%
Praseodymium
Praseodymium Cube under oil
(99.99%)

Source: David Franco
Contributor: Ed Pegg Jr
Acquired: 16 August, 2002
Text Updated: 4 May, 2007
Price: $43
Size: 0.4"
Purity: 99.99%
Neodymium
Neodymium Hunky lump
(99.99%)

Source: George (not 007) Lazenby
Contributor: George (not 007) Lazenby
Acquired: 20 November, 2002
Text Updated: 4 May, 2007
Price: Donated
Size: 0.75"
Purity: 99.99%
Samarium
Samarium Dendritic crystals
(99.99%)

Source: George (not 007) Lazenby
Contributor: George (not 007) Lazenby
Acquired: 20 November, 2002
Price: Donated
Size: 0.75"
Purity: 99.99%
Terbium
Terbium High purity crystal crust
(99.99%)

Source: Ethan Currens
Contributor: Ethan Currens
Acquired: 2 December, 2007
Text Updated: 3 December, 2007
Price: Donated
Size: 1.25"
Purity: 99.99%
Tantalum
Tantalum Twice-melted button
(99.99%)

Source: Ethan Currens
Contributor: Ethan Currens
Acquired: 30 April, 2008
Text Updated: 2 June, 2008
Price: Anonymous
Size: 1"
Purity: 99.99%
Platinum
Platinum Platinum crucible
(99.99%)

Source: Anonymous
Contributor: Anonymous
Acquired: 8 March, 2008
Text Updated: 8 March, 2008
Price: Donated
Size: 1"
Purity: 99.99%
Gold
Gold Vapor deposited crystal 3
(99.99%)

Source: Ivan Timokhin
Contributor: Theodore Gray
Acquired: 27 October, 2007
Text Updated: 19 November, 2007
Price: $30
Size: 0.2"
Purity: >99.99%
Mercury
Mercury Sample from the RGB Set
(99.99%)

Source: Max Whitby of RGB
Contributor: Max Whitby of RGB
Acquired: 25 January, 2003
Text Updated: 11 August, 2007
Price: Donated
Size: 0.2"
Purity: 99.99%
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