http://www.forrestrace.com/glass-cobalt/

What does the cobalt blue glass do?
We had to look through a thin two inch by two inch “cobalt blue glass” to see the color of the element flame. But, I don’t know what the piece of “glass” is supposed to do. I think it has something to do with wave frequency and length?
If I remember correctly, it filters out the Sodium flare so you can see the color of the element being tested. Since Sodium contamination is very hard to avoid (it is found on your skin) and a very tiny amount flares a bright yellow, without the glass you see only yellow.
Making Tabular Glass Beads With Seascapes : Melting Cobalt Blue Glass for Tabular Ocean Beads
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Pyrex 6004023 6-Piece Glass Rectangular Storage Set with Blue Lids $14.44 6 Piece, Pyrex Bake ‘N Store, Glass Food Storage Set, Includes: 3 Cup, 6 Cup & 11 Cup Rectangular Dishes With Dark Blue Plastic Covers…. |
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Takeya Classic Glass Water Bottle with Silicone Sleeve $25.00 Takeya glass water bottles are portable, stylish, and are available in five colorful silicone sleeves. Product Specifications: Takeya is committed to enriching people’s lives using modern design, a rich palette of colors, food-safe materials, unique functionality and high quality craftsmanship. Throughout their entire product line, you will find Japanese-inspired designs and innovative featu… |
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Bormioli Rocco Murano 14-7/8-Ounce Cobalt Blue Beverage Glass, Set of 4 $18.00 Product FeaturesSet of 4 glasses measuring approximately 4 by 4 by 4-1/2 inches and holding 14-7/8 ounces eachSpun, machine-made glass construction; flared shapeVibrant cobalt-blue swirls and hammered textureDishwasher-safe for thorough cleanupLayers beautifully with a variety of dinnerware and table settings Amazon.com Product DescriptionVibrant and distinctive, this set of four beverage glasses … |
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Lotus Light Pure Essential Oils – Blue Glass Bottle with Sprayer 4 oz – Essential Oil Packaging Supplies $3.65 4 oz blue glass bottles with sprayer cap…. |
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Rose Crystal Organic Rosewater Hydrating Facial Toner with Rose Quartz Gem Elixir As Seen in Fast Company Magazine $18.00 91% Organic Rose CrystalRosewater Facial Toner with Rose Quartz Gem Elixir A hydrating, conditioning toner with the delicate floral scent of Roses. Pure, natural Rosewater & Organic Aloe Vera improve the overall health & vitality of your skin. Cleansing, healing, moisturizing & balancing. Natural & Organic Essential Oils of Rose, Palmarosa, Rose Geranium, Patchouli & Sweet Orange synergize into… |
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Cucumber Depuffer Eye Serum wth Anti-Oxidant Rich Cranberry Oil – Organic $14.00 95% Organic Cucumber Depuffer Eye Serum with Anti-Oxidant Rich Cranberry OilAn amazingly light & refreshing moisturizer for the delicate skin around your eyes. With the natural, clean scent of fresh cucumbers, this serum works to hydrate & tone your delicate skin tissues, reducing puffiness & lessening the appearance of fine lines & wrinkles. Cucumbers are naturally cooling & have an extraordinari… |
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Cobalt Abduction Design Protective Decal Skin Sticker – High Gloss Coating for Amazon Kindle Fire (7 inch Color Multi-Touch Display) $19.99 Your precious Amazon Kindle Fire (7 inch Color Multi-Touch Display) attracts attention with its quad-core, touchscreen capabilities; it deserves to be showcased by a stunning, graphic skin decal sticker! Featuring brilliant images and vibrant colors, our decal skin stickers brighten up the outside of your Kindle Fire and allow you to showcase your true personality. Our skins are accurately, custom… |
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Cobalt Daisy Design Protective Decal Skin Sticker – High Gloss Coating for Amazon Kindle Fire (7 inch Color Multi-Touch Display) $19.99 Your precious Amazon Kindle Fire (7 inch Color Multi-Touch Display) attracts attention with its quad-core, touchscreen capabilities; it deserves to be showcased by a stunning, graphic skin decal sticker! Featuring brilliant images and vibrant colors, our decal skin stickers brighten up the outside of your Kindle Fire and allow you to showcase your true personality. Our skins are accurately, custom… |
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Saratoga Springs Natural Spring Water 12oz Glass Bottles (Pack of 24) $34.95 Saratoga Natural Spring Water in 12 oz. cobalt blue glass bottle…. |
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Climax Spring Water- Cobalt Blue 750mL $4.99 Our Natural spring water bottled in a beautiful Cobalt Blue glass bottle. This is perfect for a gift for any occasion or to just enjoy a nice cold glass on a hot summer day. Bottled in Climax, Ky…. |