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glaucophane schist mineral sample under light microscopy

Yosemite valley national park, mountain nature, California, USA

Close-up of a pharmacist hand arranging paracetamol on a stainless steel tray. Ready to distribute to patients

A panoramic view on the plain on top of a mountain in Hochschwab region in Austrian Alps. The flora overgrowing the slopes is turning golden. Autumn vibes. Sharp and steep mountain chain. Wilderness

$Wet rough asphalt black bitumen road pavement surface abstract grunge texture close-up top view background banner.\nBitumen is a sticky, black, highly viscous liquid or semi-solid form of petroleum. In the U.S., it is commonly referred to as asphalt. It may be found in natural deposits or may be a refined product, and is classed as a pitch. Before the 20th century, the term asphaltum was also used.\nTarmacadam is a road surfacing material made by combining crushed stone, sand, and tar. It is a more durable and dust-free enhancement of simple compacted stone macadam surfaces. The terms \$