i have a feeling that these are all fake crystals, they are all

Real or fake Crystals? : r/Crystals

I totally did not know that the TWSBI rose gold models were plated with actual rose gold. Was I the only one? : r/fountainpens

most commonly faked crystals! (updated for 2023) – Cosmic Geology Crystals

How To Tell If A Crystal Is Real Alternative Distribution Crystals

How To Tell If A Crystal Is Real In 7 Easy Ways // Tiny Rituals

Are Demiurge eyes made rough or smooth diamonds? : r/overlord

Do Crystals Really Have Healing Powers, According to Science?

I bought these when I was a kid and told it was quartz, now that im handling them again they feel like glass. Does it look real or not? : r/Gemstones

I think I maybe found real pearls (a bracelet) for $1.99. They're cool to the touch and heavy, and the clasp is marked 14k! I don't know what the other marking means

Identifying Fake Crystals: Will crystal always be cold?

How To Tell If A Crystal Is Real