Are currently decaying argons used up by blueprints before currently stable argons? Anyone know (as opposed to believe)?

[I believe yesterday I had 1–2 decaying argons and 4–6 stable ones, total 6 argons, and I used 4 of them. Of the remaining 2, I think 1 decayed before I logged in today. But my memory is faulty, and it is possible I actually used 5 yesterday.]

Each Argon Crystal in a Tenno's inventory is either stable or decaying at any given time; beyond this, the age of a single crystal does not matter. Each day at GMT 00:00, two things happen: first, the quantity of decaying Argon Crystals is cut in half and rounded down; second, all stable Argon Crystals shift to the decaying state. For example:

11 crystals are collected on Day 1. They are all stable.

GMT 00:00 hits, and now all 11 crystals are decaying, but the quantity remains unchanged.

189.12.100.162 wrote: Each Argon Crystal in a Tenno's inventory is either stable or decaying at any given time; beyond this, the age of a single crystal does not matter. Each day at GMT 00:00, two things happen: first, the quantity of decaying Argon Crystals is cut in half and rounded down; second, all stable Argon Crystals shift to the decaying state. For example:

11 crystals are collected on Day 1. They are all stable.

GMT 00:00 hits, and now all 11 crystals are decaying, but the quantity remains unchanged.

I don't believe this answers the question above as it only describes what happens to Argon Crystals which are in your inventory (Useful Info none the less). If you use Argon Crystals in a blueprint, the amount required by the blueprint should be removed from your inventory when you start the blueprint. Therefore the question remains, which Argon Crystals were used when the blueprint was started, Unstable Crystals or Stable Crystals?

Generally speaking if I have collected X Argon Crystals on Day 1 and Y>X Argon Crystals on Day 2, I have X+Y Argon Crystals prior to GMT 00:00 on Day 2. If I then use Z Argon Crystals on blueprint(s) such that Z<X+Y and Z>X prior to GMT 00:00 on Day 2, I will be left with (X+Y)-Z Crystals. The question from there is how many of the remaining Argon Crystals are Unstable while it is still prior to GMT 00:00 on Day 2. Knowing how many remaining Argon Crystals are Unstable out of the total remaining provides a ratio for determining the approximate amount of Stable:Unstable cyrstals were used on the blueprint(s).

I apologize that I don't have the answer to the original question, I am relatively new to WF and have been researching the components I need for some blueprints (Argon Crystals being one of them). I hope my reposing of the original question isn't overfilled with inline mathematical jargon making it hard to understand.