botryoidal
/ˌbɒtrɪˈɔɪd(ə)l
/adjective
(Chiefly of minerals) having a shape reminiscent of a cluster of grapes.Accessory minerals include earthy aggregates of clay minerals and botryoidal or stalactitic manganese oxides....
- This is a late-formed mineral that occurs as thin botryoidal crusts with little visible crystal structure.
- It forms spherical clusters of tightly packed radiating crystals and botryoidal crusts.
Origin
Late 18th century: from Greek botruoeidēs (from botrus 'bunch of grapes') + -al.
- magnetic memory
- magnetic mine
- magnetic mirror
- magnetic moment
- magnetic money
- magnetic monopole
- magnetic needle
- magnetic north
- magnetic particle inspection
- magnetic particle testing
- magnetic pole
- magnetic pyrites
- magnetic quantum number
- magnetic resonance accelerator
- magnetic resonance imaging
- magnetics
- magnetic storm
- magnetic stripe
- magnetic susceptibility
- magnetic tape
- magnetic termite
- magnetic variation
- magnetic wire
- magnetiferous
- magnetisability