Heliodor is a yellow (and greenish) Beryl, essentially it’s own type of Emerald or Aquamarine, and is a very high vibration stone.
As Kunzite (Higher Love) is to Rose Quartz (Universal Love), Heliodor (Higher Self) is to Citrine (Positive Ego).
Energetically, it’s an advanced stone – novices can certainly acquire it (prices are high) – but without any foundation (or guide/practitioner support) for working with Crystals, your experience (and benefits) will be received passively.
Heliodor comes from Brazil (usually more yellow) and from Russia (greener) and it’s very hard to come a cross a nicely terminated piece, without paying a premium for it.
We do occasionally stock it, but since the market is small for it, you’ll be lucky to find one available. Email Kyle@CrystalConcentrics.com with interest.