Microscopic View of Krapina Rock (image) University of Kansas Share Print E-Mail Caption A microscopic view of some dendritic forms from Side A; (b) microscopic image of the limonite stains. An international research team discovered the rock in the Krapina Neanderthal site in Croatia as evidence that a Neanderthal collected it 130,000 years ago. Credit David Frayer, University of Kansas Usage Restrictions None Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.