drusy


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drusy

[′drüz·ē]
(geology)
Of or pertaining to rocks containing numerous druses.
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References in periodicals archive ?
Quartz of the first generation is found very commonly in the main mineralized zone, chiefly as sparkling drusy crusts on cavity walls in the basalt.
The specimens are open geodes from 5 to 20 cm across, lined by drusy calcite, each geode sporting one or two very sharp individual calcite crystals, the latter ranging up to 6 cm.
5 mm) yellow-green distorted octahedrons and cuboctahedrons of bromargyrite have been found on white micro-crystalline drusy quartz, cerussite and plattnerite in a localized area near the portal of the Brown Monster mine.
The deep rose-pink crystals reach 2 cm, and some show sparse drusy coatings of adularian orthoclase; matrix specimens from the find reach 25 cm across (WeiB and Derungs, 2004).
Very sharp, lustrous, metallic gray tetra-hedral crystals of tennantite reaching 2 cm sit up well on drusy quartz and calcite coatings on pale gray matrix.
Minerals found at the Force Crag mine include sphalerite crystals (large, black to dark brown and lustrous) that are sometimes partially covered by honey-yellow drusy to botryoidal siderite.