This table summaries the apatite reference materials commonly used in geochronology, listed in order of their age. Some of these materials have been reported to contain modest but significant levels of Pb-loss. Prior to considering the use of any of these materials for quality control purposes, it is strongly recommended that analysts carefully review the cited publications as well as other reports that may exist in the scientific literature. Compilations of zircon, monazite and titanite/sphene reference materials are also available.
| Name | Age (Ma) | Reference | Initial amount | Available grain size* | U conc (µg/g) |
| UWA-1 | 2058 or 2071 | 1c | n/r | 67 | |
| SDG | 1602 | 2c | n/r | 50-52 | |
| NW-1 | 1160 | 3c | n/r | 61-168 | |
| Otter Lake | 913 | 4c | n/r | 92 | |
| McCLure (MMap) | 523.5 | 5c, 6c | n/r | 3-30 | |
| MAD | 485 |
6c | n/r | chips | 16-22 |
| AP1, AP2 | 475 |
7c | n/r | n/r | |
| Slyudyanka | 460 | 8c | n/r | 94.2 | |
| Kovdor | 376-380 | 9c | n/r | 0.2-3.6 |
| n/r = not reported |
| *only reported where the material is described as intended for distribution |
References
| 1c. Zhou et al. (2007). Dizhi Lunping (Geological Review), 53, 120-125 (in Chinese) |
| 2c. Zhou et al. (2012). Acta Geoscientica Sinica, 33, 857-864 (in Chinese with English abstract) |
| 3c. Wu et al. (2017). Geological Magazine, 154, 217-236 |
| 4c. Barfod et al. (2005). Geochimica et Cosmochimica Acta, 69, 1847-1859 |
| 5c. Schoene et al. (2006). Contributions to Mineralogy and Petrology, 151, 615 |
| 6c. Thomson et al. (2012). Geochemistry, Geophysics, Geosystems, 13, Q0AA21 |
| 7c. Zhou (2013). PhD dissertation, Institute of Geology and Geophysics, CAS (in Chinese with English abstract) |
| 8c. Chew at al. (2011). Chemical Geology, 280, 200-216 |
| 9c. Amelin and Zaitsev (2002). Geochimica et Cosmochimica Acta, 66, 2399-2419 |