Jesse Kohl (and Henry Grimmett, of Glass Alchemy) are only two of the victims, I mean unfortunates, who've encounted my efforts to get a handle on borosilicate glass chemistry. Particularly alluring are the silver bearing colors, because as those of you who have watched tarnish slowly form on silver, it shades through the entire rainbow (before turning from silver oxide to silver sulphide, which is just plain black.) Jesse was kind enough to order the various NS colors in families by metal oxides:

Silver Bearing colors, in order of increasing silver content:

• NS-34 extra light yellow
• NS-09 yellow
• NS-13 amber purple
• NS-26 double amber purple (actually 1.5 amber purple:)
• NS-41 butterscotch
• NS-44 caramel
• NS-45 blue moon (~ 41, but with Co)
• NS-81 blue caramel (~44, but with Co)

Here we get silver colors with Cobalt, and um, one other metal, maybe Copper (Cu) thrown in? Again, sorted from less to more metal content.

• NS-14 irrid
• NS-15 turquesa
• NS-38 intense blue green
• NS-48 light blue amber purple
• NS-49 dark blue amber purple
• NS-69 green amber purple
• NS-03 multi
• NS-04 dark multi
• NS-47 aurora

Cobalt colors (increasing intensity):

• NS-19 cobalt blue
• NS-10 cobalt blue
• NS-20 cobalt blue
• NS-33 turbo cobalt blue (for blowing out)

White and colors mixed with it:

gentle soft flame till lumps are smoothed

• NS-54 white
• NS-83 skyline (Co)
• NS-55 periwinkle (Co)
• NS-80 hyacinth (Co)
• NS-57 midnight (Co)
• NS-59 cranberry (Cu ruby)
• NS-58 mint (Cr)

Chromium (green) series

• NS-11 jade
• NS-53 forest green
• NS-52 teal (plus Co)
• NS-79 blue spruce
• NS-77 deep sea blue (plus Co)
• NS-75 indigo aventurine (plus Co)
• NS-78 millennium moss
• NS-73 mystery aventurine (like 78, but plus Ag, strikes)

Cadmium (plus selenium) colors (gentle flame)

• NS-63 canary
• NS-48 goldenrod
• NS-64 lava
• NS-85 poppy
• NS-65 cherry

blacks

• NS-76 onyx (green black)
• NS-91 ninja (brownish black)

Rare earths: (e.g. erbium, praseodymium, neodymium etc)

• NS-13 lavender
• NS-23 pink
• NS-32 violet
• NS-25 peach
• NS-66 sublime

Oxydizing Copper (green) (oxidizing flame, hello)

• NS-24 true green
• NS-70 ice
• NS-72 glacial
• NS-89 nile (with Ag, but does not strike)

Copper rubies (kiln striking recommended)

• NS-05 orange (with Ag)
• NS-06 orange (with Ag)
• NS-07L ruby light
• NS-07 ruby
• NS-08 dark ruby
• NS-82 ruby K

Self-striking rubies, neutral flame

• NS-88 pomegranet orange
• NS-86
• NS-87

NS-43 cherrywood (reduced ruby)

Everything but the kitchen sink Exotics:

Most intense combinations of Co, Ni, Ag, Fe, etc.

• NS-27 green
• NS-28 blue
• NS-29 red

I suppose I ought to track down Jesse's email addy and have him look this over for errors, 'cuz there no doubt are some, sigh...

file originally created 3aug05