Komatiite (IMAGE) University of the Witwatersrand Caption Unique texture of komatiite lava flows from the Barberton greenstone belt. The highly elongate crystals of olivine formed at an eruption temperature of over 1600°C - over 300 degrees hotter than current day lavas on Hawaii. Credit Wits University Usage Restrictions None License Licensed content 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.