Tiger journeys
Tiger iron is the trade name for an opaque, location-shaped built sedimentary rock , which consists of the minerals hematite (hematite), and Jasper , and the rocks radiolarite (chert) or a tiger eye quartz ( tiger's eye with high quartz consists of total). According to EPI , the Institute for Gemstone Testing, tiger iron consists of the components tiger's eye, magnetite and hematite.
The chemical properties vary greatly depending on the composition of the tiger iron.
The silver-gray stripes come from the hematite, which also provides the metallic sheen, the red to yellow stripes come from the jasper or chert or tiger's eye quartz.
Tiger iron is used solely for decorative stones , mainly in the embodiment as a drum stone processed.
Individual evidence
- ↑ Mineralienlexikon - Hematit ( Memento of the original from January 28, 2007 in the Internet Archive ) Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. .
- ↑ EPI Institute for Gem Testing - Search for trade names (entry of tiger journeys required).
literature
- Walter Schumann: Precious stones and gemstones. All species and varieties in the world. 1600 unique pieces. 13th, revised and expanded edition, new edition. BLV, Munich et al. 2002, ISBN 3-405-16332-3 .