Outstanding feature	High energy concentric aragonite ooids
Folk Classification	Well sorted oosparite
Dunham Classification	Well sorted oolitic grainstone
Common Grains	Ooids, some quartz and bioclastic grains
Sorting	Well sorted
Rounding	Well rounded
Micritization & envelopes	A few coated grains
Cement & diagenetic fabric	Meniscus cements at grains contacts
Porosity	55% intergranular porosity
Depositional Setting	Beach rocks along the high energy shoreline associated with algal stromatolite heads
Diagenetic history	Precipitation of aragonite on pellets, grapestones, bioclasts and quartz, followed by calcitic meniscus cements

Striking high energy concentric aragonite ooid grains accumulated where they now form beach rocks along the shore of Hamilin Pool of Shark Bay, Western Australia, between intertidal algal stromatolite heads. Note the meniscus cements forming at the points of contact between the grains.