'Is this crystal real?' sounds simple, but there are several different questions hidden inside it. A stone can be natural, treated, lab-grown, reconstructed, glass or resin. The most important thing is accurate disclosure—not whether a seller uses the word 'real'.
Start by defining what you are buying
- Natural: formed geologically and sold in natural or cut/polished form.
- Treated: natural material altered by heat, dye, coating or another process.
- Lab-grown / synthetic: manufactured material with the same or similar crystal chemistry to a natural mineral; it should be disclosed as lab-grown.
- Imitation: glass, resin or another material made to resemble a mineral.
Visual clues can help—but they are not proof
Natural stones often show inclusions, zoning, veils, growth features or variation. Glass may show rounded gas bubbles, mould marks or unusually uniform colour. Dyed material may show concentrated colour in fractures or pores. However, one clue alone is rarely enough to authenticate a stone.
Do not rely on the 'cold test'
Glass and many natural minerals can both feel cool at first. Temperature depends on room conditions, size and thermal properties, so touch is not a reliable authenticity test.
Avoid destructive scratch tests on finished pieces
Mohs hardness is useful in mineral identification when performed correctly, but scratching a polished crystal or jewellery piece can damage it and still may not identify the exact material. For a valuable specimen, use professional gemological testing instead.
Natural does not mean flawless—and flawless does not automatically mean fake
Many natural crystals contain inclusions, but some natural material can be very clean. Likewise, lab-grown material can contain growth features. Judge the full set of evidence rather than using 'too perfect' as a rule.
Heat-treated Citrine needs clear wording
Much of the orange-brown material sold commercially as Citrine is heat-treated Amethyst or other quartz. It is still quartz, but the treatment should be disclosed rather than presented as naturally coloured Citrine.
Questions to ask an online seller
- What mineral/material is this?
- Is the colour natural or treated?
- Are the photos of the exact piece or a representative sample?
- Is origin known, and how certain is that information?
- Can the seller explain visible inclusions or natural features?
What good product listings should show
Useful listings provide clear photos, dimensions, weight, material, treatment information when known and honest notes about natural variation. Those facts are more valuable than inflated grade language such as 'AAAAA++++'.
Moon Rituals aims to disclose treatments and natural variation to the best of our knowledge, and our one-of-a-kind listings use the exact-piece format where stated.
Explore our Crystal Buying Guides for practical stone-by-stone buying advice.