hot bead. | in the cold bead.
--+--------------------------------------+--------------------------------
Colorless
--+--------------------------------------+--------------------------------
| Silica | Silica
| Alumina | Alumina
| Oxide of Tin | Oxide of Tin _
| Baryta | Baryta \
| Strontia | Strontia \
| Lime | Lime |
| Magnesia | Magnesia |With
| Glucina | Glucina |intermittent
| Yttria | Yttria }flame
| Zirconia | Zirconia |opaque-white.
| Thoria | Thoria only when |
| | saturated |
| Oxide of Lanthanum | Oxide of Lanthanum |
| " " Cerium | " " Cerium /
| Tantalic Acid | Tantalic Acid _/
| Oxide of Didymium | Oxide of Didymium
| " " Manganese | " " Manganese
| _ | _
| Niobic Acid \ In small | Niobic Acid \ In small
| Pelopic " } proportions. | Pelopic " } proportions.
| _/ | _/
| _ | _
| Oxide of Silver \ | Oxide of Silver \ After
| " " Zinc \ After long | " " Zinc \ long
| " " Cadmium | continued | " " Cadmium | continued
| " " Lead } blowing. | " " Lead } blowing.
| " " Bismuth | Otherwise | " " Bismuth | Otherwise
| " " Antimony| grey. | " " Antimony | grey.
| " " Nickel / | " " Nickel /
| Telluric Acid _/ | Telluric Acid _/
--+--------------------------------------+--------------------------------
Yellow to brown.
--+--------------------------------------+--------------------------------
| Titanic Acid | Titanic Acid.
| Tungstic " | Tungstic "
| Molyb