Quartz arenite
Rock
Also called Orthoquartzite, Quartzose sandstone, and Glass sand
About it
Sandstone of over 90 per cent well-rounded quartz grains, usually white or pale, from long reworking by wind and waves. The St. Peter Sandstone of the American Midwest is a classic source of glass sand.
- Type
- Rock (sedimentary)
- Group
- Sedimentary (clastic)
- Specific gravity
- 2.2–2.65
- Lustre
- dull
- Colours
- white, cream, tan, pink
- Transparency
- opaque
Typical values: real specimens vary. For more, see mindat.org.