Object
Doctor's Bag of Raw Sulphur Rocks
Physical bag containing yellow sulfur deposits gathered outside the TARDIS, used as a raw material for synthesizing hydrogen telluride. Handled by the Doctor and later delivered to Thara and Vana for forbidden chemistry.
3 appearances
Purpose
Ingredient synthesized into a tellurium compound to disrupt the Krotons' Dynatrope
Significance
Drives the Doctor's covert weapon plan, ignites Gond defiance through Beta's lab work, and escalates rebellion against Kroton mental control
Appearances in the Narrative
When this object appears and how it's used