Crystals
Clear Quartz is quartz, Mohs 7, used for clarity, focus, amplifying. The mineralogy, whether it is safe in water and sunlight, what gets substituted for it, and what a stone can honestly do.
Start with the mineralogy, because most of the bad advice about this stone follows from not knowing it. Clear Quartz is quartz. On colour: Nothing. Pure silicon dioxide with no chromophore, which is exactly why it is clear.
Where it comes from: Arkansas, Brazil, Madagascar and the Swiss Alps. Arkansas material is the benchmark for clarity.
| Property | Value |
|---|---|
| Mineral species | Quartz |
| Chemical formula | SiO2 |
| Mohs hardness | 7 |
| Crystal system | Trigonal |
| Chakra | Crown |
| Usually linked to | All twelve, and to the Sun |
Hardness matters more than it sounds. The Mohs scale runs from talc at 1 to diamond at 10, and anything below about 5.5 can be scratched by ordinary window glass or by the quartz dust in everyday grit. At 7, clear quartz is hard enough to handle daily wear without much trouble, though it will still scratch a softer stone it is stored against.
The all-purpose one. In practice people use clear quartz as a blank: it gets assigned whatever intention is needed rather than carrying one of its own, and it is the stone traditionally said to amplify whatever it sits beside.
In the shorthand most shops and books use, it is a Crown stone, and the three words attached to it most often are clarity, focus, amplifying.
This is the section that matters, and the one most pages get wrong. Cleansing advice is handed around as though every stone were the same mineral, and it is not. Here is what clear quartz will actually survive.
| Method | Safe? | Why |
|---|---|---|
| Water | Yes | Safe in water. Quartz family stones are hard, non-porous and chemically stable, so a rinse does no harm. |
| Direct sunlight | Yes | Direct sunlight does no damage. |
| Salt or salt water | With care | Dry salt is tolerable, though it scratches a polish over time and there is no particular reason to use it. |
| Moonlight | Yes | Harmless to every stone on this list, which is most of why it is the method that suits everything. |
| Smoke, sound or breath | Yes | Nothing physical touches the stone, so nothing can be damaged by it. |
Glass is the usual substitute and it is easy to catch: glass warms to the hand in seconds, quartz stays cold for a while, and glass almost always contains round bubbles while quartz contains angular fractures.
Two general rules that hold across the whole shop. If the price is far below everything else on the shelf of that size, something has been substituted or treated. And a stone sold with no locality at all is usually one the seller cannot trace, which in this trade often means tumbled, dyed and bagged somewhere a long way from where it came out of the ground.
Clear Quartz is usually linked to All twelve, and to the Sun. Worth being straight about this: crystal and zodiac pairings are modern, they are not consistent between sources, and two reputable books will give you two different signs for the same stone. They are a useful organising idea rather than a tradition with a single lineage behind it.
Every piece of clear quartz in the shop is the same stone with the same associations, which is both the appeal and the limit of it. A birth chart is the opposite: it is calculated from your date, time and place and it describes one person. If you do not know your birth time, this covers how to find it.
Yes. At Mohs 7 it is hard and chemically stable, so water does no harm.
No. Sunlight does not damage it.
Clarity, focus, amplifying. It is associated with the Crown chakra.
Mohs 7. That is hard enough for daily handling.
Glass is the usual substitute and it is easy to catch: glass warms to the hand in seconds, quartz stays cold for a while, and glass almost always contains round bubbles while quartz contains angular fractures..
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