stalactitic texture

mineralogy

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In mineral: Crystal habit and crystal aggregation
…botryoidal, reniform, and mammillary forms); stalactitic, pendant cylinders or cones resembling icicles; concentric, roughly spherical layers arranged about a common centre, as in agate and in geodes; geode, a partially filled rock cavity lined by mineral material (geodes may be banded as in agate owing to successive depositions of material,…
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