(IMAGE) Goethe University Frankfurt Caption Building block for silicon-germanium alloys: A section of the silicon-germanium adamantane synthesised in Frankfurt (shown here without substituents). Blue: silicon, magenta: germanium. Credit Goethe University Frankfurt, Germany Usage Restrictions To be used only when reporting on Goethe University Frankfurt, Germany. Indication of copyright required. License Original 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.