Differences in the size of sand.jpg
en
Differences in the size of sand, Sedimentology, Close-up photographs of sand, Assumed own work
commons
en
Differences in the size of sand, Sand from Qafsah, Tunesia (small grains) and Worthing, England (large grain). Magnification: The large grain is about 2 mm in size., Grit size ranging from 2 mm (the large grain) (about F 10 using FEPA standards) to about 40 micrometres (about F 240 or P 360).
commons
ja
砂の大きさの違い、堆積学、砂のクローズアップ写真、作品
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ja
砂の大きさの違い、チューンシアのカフサーの砂(小さな穀物)とワージング(大きな穀物)粒径:大粒は約2mm、粒径は2mm(大粒)から約40μm(約F 240またはP 360)
commons_translated
size up sand abrasive close-grained abrasiveness differentiation