sand crystal

sand crystal

[′san ‚krist·əl]
(geology)
A large crystal loaded up to 60% with detrital sand inclusions formed in a sandstone during or as a result of cementation.
References in periodicals archive ?
GET THE LOOK: Chanel Pro Lumiere foundation, pounds 23; Urban Decay Surreal Skin Mineral Makeup powder foundation, pounds 17 at Debenhams; L'Oreal Glam Shine lipgloss in Sand Crystal, pounds 6.
He knew that rocks could be crushed into smaller rocks, and finally into sand crystals.
By crushing sand crystals, students can observe that tiny crystals can become even smaller.
Clouds of sand crystals resembling crushed glass envelop 21 infrared-bright galaxies, astronomers report.