Know what your crystal is. And whether it's real.

How it works

Why this and not a free image search

Start with what you are carrying

The stones people reach for, sorted by the reason they reach.

Or by sign

From the Grimoire

The honest guides. What gets faked, what gets treated, and how to tell.

Identifying crystals

The Fake Crystal Field Guide: 12 Most-Faked Stones

Twelve stones get faked more than any others, and each one has a tell you can see at a window. No loupe, no chemistry, no need to take the label at its word.

5 min read · 19 August 2026

Your sign

August Birthstone: Peridot, the Green Spark

Peridot spent centuries being sold as emerald by people who could not tell the difference. Here is what the August birthstone actually is, and what it is worth.

5 min read · 18 August 2026

Your sign

July Birthstone: Ruby, the Red Fire

Some ruby is real and heated. Some is cracks packed with lead glass. Here is how to tell what July handed you, and the one question to ask a seller.

5 min read · 18 August 2026

Your sign

April Birthstone: Diamond, and the Stones That Do the Same Job

Your birthstone was picked for you in 1912 by a room full of jewellers. April got diamond. Here is who decided that, and the honest stones that do the same job.

5 min read · 18 August 2026

Your sign

December Birthstone: Turquoise, Tanzanite, and Zircon

Tanzanite was added to December in 2002, and it comes out of the ground brown. Here are all three December birthstones, told with the footnotes in.

5 min read · 18 August 2026

Your sign

November Birthstone: Citrine and Topaz

Most orange citrine was purple amethyst until somebody baked it. Here is what November actually gave you, and how to spot the untreated kind.

5 min read · 18 August 2026

Real mineralogy. Real charts. No made-up science.

We are the app that tells you your citrine is cooked amethyst. Because everyone else is lying to you.

The Oracle is not a substitute for medical, legal or financial advice. For entertainment and reflection only.

What it costs

Nothing. Every part of Oraclite is free right now: 30 identifications a day, 40 Oracle questions a day, every tarot spread, the full chart reading and the whole collection. No account required to try it.

Questions people actually ask

Is my crystal real?

Often, but not always. Every identification tells you what the stone most likely is, and names the common imitation it gets confused with. Where a physical check settles it, a scratch test, a look at the banding, the way it holds cold, we give you the test to run yourself.

Can it tell if my crystal is fake?

From a photograph we can flag the usual suspects: heat-treated amethyst sold as citrine, dyed howlite sold as turquoise, glass sold as obsidian, reconstituted powder sold as amber. A photograph cannot be certain. We say which it is, and how confident we are, rather than pretending.

Does it work without my birth time?

Yes. Your sun and the rest of your placements are computed from your date and place alone. Without a birth time we cannot compute a rising sign or exact houses, and we tell you that plainly instead of guessing one.

Is it free?

Yes. Everything is free right now: 30 scans a day, 40 Oracle questions a day, every tarot spread and your whole chart. No card, nothing to cancel. When we do start charging, the people who were here first keep what they have.

What crystals can it identify?

A catalogue of 127 stones: the quartz family, the feldspars, the common tumbled and raw specimens you actually find in shops and riverbeds, plus the rarer entries. Every one has a full entry you can read before you ever install anything.