druse
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Cavansite druse (1) on stilbite
English
Etymology
Borrowed via French from German Druse (“crystallized piece of ore”); compare dross.
Pronunciation
Noun
druse (plural druses or drusen)
- (mineralogy) A rock surface with a crust of tiny crystals.
- 1889, Dana et al, A System of Mineralogy:
- Occurs as a fine coating over the minerals in druses or cavities in the granite.
- 1969, T. R. Meyers, The Geology of New Hampshire: Minerals and mines, page 18:
- Nontronite, a variety of chloropal occurs as a light yellow powder in druses of the North Conway granite (99, p. 312).
- 1984, Science Reports of the Tohoku University:
- A lot of druses are found in the vein, and euhedral crystals of quartz, marcasite and sphalerite are observed as druse minerals.
- (botany) An aggregation of calcium oxalate crystals found in certain plants.
- (ophthalmology) A tiny yellow or white accumulation of extracellular material that builds up in Bruch's membrane of the eye.
Derived terms
Translations
a rock surface with a crust of tiny crystals
a tiny yellow or white accumulation of extracellular material that builds up in Bruch's membrane of the eye
Anagrams
French
Etymology
Pronunciation
Audio: (file)
Noun
druse f (plural druses)
Descendants
Further reading
- “druse”, in Trésor de la langue française informatisé , 2012.
Italian
Noun
druse f