MagazinesNewspapersBuy Gift CardRedeem Gift Card
GB flagUnited Kingdom

Europe

Austria Belgium Bulgaria Croatia Czech Republic Denmark Estonia Finland France Germany Greece Guernsey Hungary Ireland Isle of Man Italy Jersey Latvia Lithuania Luxembourg Malta Netherlands Norway Poland Portugal Romania Slovakia Slovenia Spain Sweden Switzerland Ukraine United Kingdom

Asia

China Cyprus Hong Kong Indonesia Japan Philippines Saudi Arabia Singapore Thailand

Oceania

Australia New Zealand

Americas

Canada United States

Africa

South Africa
Magazines BBC Science Focus Magazine 27 July 2022Rock

Rock

5 min read

Think of a rock. It’s angular, grey and on the ground, right? Wrong. Rocks come in a






This article is from...