Smoky quartz point of ~100 mm with natural double termination — two well-formed opposing apices — and visible translucence when backlit. Unique piece with natural white clay deposits on edges and tips, ideal specimen for large format wire wrap, mineralogical collection, and meditation.
Piece Details
| Mineral |
Smoky Quartz (SiO₂ with lattice defects due to natural irradiation) |
| Dimensions |
~100 mm total length (±3 mm due to being a natural rough piece) |
| Shape |
Natural double terminated point |
| Finish |
Rough, unpolished |
| Hardness |
7 Mohs — suitable for wire wrap; protect apices during mounting |
| Origin |
Material acquired from wholesale lapidary market |
| Treatment |
Untreated |
| Piece Type |
Unique piece |
This specific piece
At first glance, the crystal appears solid and black; when backlit, it reveals itself to be translucent, with the smoky color unevenly distributed within the quartz mass — more concentrated in the center than at the ends. This variation in tone along the axis provides exceptional visual depth for a rough point.
The visible white deposits on the tips and parts of the body are residual clay from the environment in which the crystal grew, a common phenomenon in quartz that grows in clay-rich cavities. They have a small chip on one of the apices, which does not compromise its use in statement jewelry or as a collector's specimen.
Why smoky quartz is dark
The smoky color of quartz is not due to oxide inclusions or external staining: it originates when the quartz crystal lattice (SiO₂) is exposed for millions of years to natural radiation from radioactive elements present in the surrounding rocks (mainly uranium and thorium). This radiation creates point defects in the lattice — color centers — that selectively absorb wavelengths of visible light and produce the characteristic dark brown or almost black hue.
What mounting it works for
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Wire wrap in 925 silver or other precious metals — the 100 mm length allows for elaborate compositions; the irregular natural profile adds character to the finished piece.
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Pendants with bezel setting or open framework — the size makes the point a statement pendant that can work with no more embellishment than the fastening wire.
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Macramé pieces — the size and weight are suitable for large format macramé anchors.
Smoky quartz in lapidary tradition
Smoky quartz was prized since ancient Celtic and Scottish times under the name "cairngorm" — Scotland's national mineral, used in the handles of ceremonial daggers (sgian-dubh) and in tartan brooches since the 18th century. Renaissance lapidaries used it alongside clear quartz to make magnifying lenses and scrying globes.
The symbolic properties attributed to minerals belong to cultural and historical traditions. They are shared for educational purposes, not as medical advice or a substitute for professional care.
How to recognize genuine smoky quartz
Natural smoky quartz is translucent when backlit — never opaque. Artificially dyed quartz shows color concentration in cracks or on the perimeter. Genuine crystal has no spherical bubbles (indicative of glass) and is cooler to the touch than synthetic materials.
Frequently asked questions
What are the white deposits on the edges?
They are natural residual clay from the environment in which the crystal grew. They can be gently cleaned with water and a soft brush if desired. They do not affect the mineral quality or its use in jewelry.
Is the smoky color a treatment or is it natural?
Natural. The color originates from the irradiation of natural radioactive elements in the surrounding rock for millions of years. No detectable treatment; the piece does not include formal gemological certification.
What type of jewelry is it suitable for?
Due to its length of ~100 mm, it is ideal for oversized pendants in multi-layered wire wrap or for macramé pieces with a large mineral body. It also works as a collector's piece or meditation specimen.
More rough minerals in our rough minerals collection. If you are looking for worked smoky quartz, explore our tumbled minerals.