Most "stone" jewellery is genuine rock, but some is dyed, heat-altered or glass. Here is what to look for and what questions to ask before you buy.
A stone can be natural as it came out of the ground, natural but altered (amethyst turned citrine by heat is common and disclosed), or an imitation made of glass or resin. None is automatically "bad" — the point is knowing which you are holding.
Uniform colour with zero variation, bubbles inside, or a too-perfect sheen can hint at glass or heavy dye. Real stone usually has slight unevenness, tiny pits, or a cold weight glass struggles to mimic.
Ask the seller what the stone is, whether heat or dye has been used on it, and for the country of origin where it matters. A seller who answers plainly is worth more than a stone with a fancy name.
No. Heat is widespread and usually disclosed; it is still genuine mineral, just changed by heat. "Fake" means glass or resin passed off as stone.
A few tricks exist (scratch, weight, loupe) but they are unreliable for beginners. Buying from a seller who says plainly what was done to the stone is the safer route.
So you pay for what you think you are getting. Altered and untouched can look alike; honest labelling lets you choose with open eyes.
The Stone Oracle reads your Western sign, your Chinese zodiac, your BaZi hour and a drawn tarot card, then maps the result onto stones we carry. It is free and nothing is uploaded.
Feng shui, the five elements, zodiac pairing and tarot are cultural traditions, not science. Everything on this page is offered as a way to think about a choice of stone — it is not a prediction, and it guarantees no outcome.