The description of the Summon Draconic Spirit spell lists the following components (FTD, p. 21; emphasis mine):
Components: V, S, M (an object with the image of a dragon engraved on it, worth at least 500 gp)
The description of the Fizban's Platinum Shield spell lists the following components (FTD, p. 20; emphasis mine):
Components: V, S, M (a platinum-plated dragon scale, worth at least 500 gp)
To me, these two spells list components materials that seem similar and interchangeable.
The material components for both spells really caught my attention. That is why I ask:
Can the spell component for the Summon Draconic Spirit spell be also used for the Fizban's Platinum Shield spell?