10k Yellow Gold "Honeycomb" Rose Quartz Earrings. Large 1.8" & 9.7g
10k Yellow Gold "Honeycomb" Rose Quartz Earrings. Large 1.8" & 9.7g
Honeycomb Quartz (from "The Quartz Page")
In "honeycomb quartz," crystals are hollow, their tips are absent, instead there is a central tube that runs roughly parallel to their c-axis, so the crystals look like a six-sided cup or a honeycomb. Sometimes it looks as if platy, parallel-grown crystals of approximately same size are attached to each other to form a six-sided ring or hexagon, very similar to honeycombs, other crystals look like hollow scepters. I've so far only seen this at 3 locations, all in volcanic rocks:
Mullis and Sigl (1982) describe such hollow quartz crystals and aggregates of these quartzes they found in a trachyte from the west coast of Gran Canaria, Spain. The authors speculate that they form in boiling watery solutions and that the crystals grew around bubbles attached to the crystal tips. This view is supported by the finding of crystals whose tips were completed again and in which the cavity was sealed. Such cavities were found to contain water vapor. It is nevertheless not clear if growth inhibition by vapor bubbles is the general mechanism behind the formation of these and similar crystals: some of the hollow crystals get fairly large and have an internal diameter of one centimeter but are just one centimeter high.
Shipping & Returns
Shipping & Returns
30-day return policy.
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