Purple chalcedony cabochons in two formats — standard oval (approx. 25×18 mm) and larger free-form — with lavender to medium lilac hues and the characteristic translucence of microcrystalline quartz. Flat back, mirror polished finish.
Item details
| Mineral |
Chalcedony (microcrystalline quartz, purple/lilac var.) |
| Dimensions |
Oval: approx. 25×18 mm. Free-form: approx. 25-35 mm on major axis. See image for details. |
| Shape and back |
Oval or free-form depending on unit; flat back |
| Finish |
Mirror polished |
| Hardness |
6.5-7 Mohs — suitable for regular wear pendants and rings; we recommend closed bezel setting |
| Origin |
Namibia (Namibian lilac chalcedony) |
| Treatment |
No detectable treatment. Statement based on lapidary observation. |
| Item type |
Available in 2 formats; each unit is unique in tone and intensity of lilac |
These specific pieces
The lilac tone varies between pieces: some have a uniform lilac, others have areas with a gradient towards translucent white or veins of lighter quartz. The translucency is particularly striking in earrings: when light passes through the edge, the lavender tones light up softly. For pendants, the same effect occurs with window light or focal lighting.
How purple chalcedony forms
Chalcedony is a variety of submicroscopic fibrous quartz formed by slow deposition from hydrothermal solutions in cavities of volcanic rocks. The purple coloration is attributed to manganese inclusions or lattice defects associated with trivalent iron. Lilac chalcedony from Namibia forms in fractures of Mesozoic basalts and dolerites related to the opening of the South Atlantic.
What mounting it works for
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925 silver bezel — soft lilac contrasts well with bright or rhodium-plated silver; standard oval fits pre-made 25×18 mm settings.
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Rings and pendants — one of the few affordable natural lilacs in cabochon; works well in fluid design rings and horizontal pendants.
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Wire wrap — lavender tone looks especially good with silver or silver aluminum; the flat back of the oval facilitates the start of the basic wrap.
Chalcedony in tradition
Used in Mesopotamian cylinder seals since the third millennium BC, in Greek cameos, and in Roman intaglios for everyday use. In crystal tradition, it is associated with serene communication and emotional balance (clarity and calm).
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.
Frequently asked questions
Is purple chalcedony dyed?
No detectable treatment. The lilac tone is natural; statement based on lapidary observation without formal gemological certification.
What is the difference between oval and free-form?
Standard oval (25×18 mm) fits pre-made settings; free-form requires custom bezel or wire wrap and offers a larger visual surface area.
Is the lilac tone uniform in all pieces?
No. Each piece has its own intensity and distribution — some are uniform lilac, others have white areas or gradients. See product images.
Is it suitable for an everyday ring?
With a closed bezel for side protection, yes. At 6.5-7 Mohs, it is sufficient for moderate use; avoid direct impacts.
How do I care for it?
Clean with a soft, slightly damp cloth. Stable to light and heat under normal conditions. More at jewelry care.
See more chalcedonies in cabochons. More about quartz in mineral properties.
