Trautman Art Glass via Frantz Art Glass
Io Star
Medium-saturation amber/purple aventurine with reactive silver and a green base; produces amber-purple strikes with aventurine sparkle. Usual aventurine cautions apply — avoid over-garaging or over-annealing.
Outcomes
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Medium-saturation amber/purple strike with aventurine sparkle and green-leaning baseWork in an oxidizing flame for amber/purple results. As an aventurine-reactive hybrid, strike carefully; avoid over-garaging or over-annealing which can kill the aventurine effect.
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Silvered reactive surface with iridescent aventurine flash over green-toned baseThe aventurine component produces a glittery flash/sparkle effect; the reactive silvered component contributes a metallic sheen. Both effects depend on controlled thermal history.
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Degraded or washed-out color if over-garaged or over-annealed — aventurine sparkle may be lostOver-garaging or over-annealing are known failure modes for this aventurine-containing rod; keep soak times and temperatures conservative.
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Milky amber/opaque result if worked in a reducing flameLike other amber/purple family rods, reduction will suppress the purple strike and lock the color as a milky opaque amber rather than a rich purple.
Working notes
- Avoid over-garaging — can degrade aventurine sparkle.
- Avoid over-annealing — can degrade aventurine sparkle.
- Work oxidizing to achieve amber/purple strikes; reducing flame will suppress purple.