coralloid

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coralloid

[′kär·ə‚lȯid]
(biology)
Resembling coral, or branching like certain coral.
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It occurs as translucent to opaque, beige to yellow and orange-yellow, radiating or divergent fibrous sprays and coralloidal aggregates with a greasy luster; as vitreous, transparent to translucent, thin bladed acicular crystals 1-5 mm long; and as silky, matted, yellow to brown fibrous masses 1-2 mm across, typically associated with rinkite, astrophyllite, lorenzenite, aegirine and albite.
Chlorite is relatively common, usually forming small moss-green coralloidal masses to 5 mm on analcime or occurring as small, dense, lenticular bodies enclosed by prehnite adjacent to the walls of the vugs.