noun
crystal with grass-blade patterns
A type of quartz crystal containing inclusions that resemble blades of grass. Used in mineralogy and gemology.
この草入り水晶は、内部に緑色の草のような模様が見える。
In this crystal with grass-blade patterns, green grass-like patterns can be seen inside.
Standard kanji spelling for this mineralogical term.
Variant spelling without okurigana; also used in some sources.
水晶 is the general term for quartz crystal, while 草入り水晶 specifically refers to crystals with grass-like inclusions.
Compound of 草 (kusa, 'grass'), 入り (iri, 'containing'), and 水晶 (suishō, 'crystal'). The name describes the appearance of the inclusions.