Hezekiel Ntuli's unfired clay sculptures

XRF analysis was carried out on two separate occasions, one at the University of Pretoria (5 May 2023), and one at the Fort Nonquai (30 May 2023). For the XRF I made use of the Bruker Tracer 5i handheld XRF using the Geochemical three phase factory calibration covering Mg to U (Figure 41). Analysis was done on five sculptures from the Leeb du Toit Collection (annotated as LDT), ten sculptures from the Fort Nonquai Historical Museum, Eshowe KwaZulu-Natal (annotated as FN), and one sample of the original clay obtained from Hezekiel Ntuli’s son Paddy Ntuli. The data is provided in Appendix E, and results are summarised here. The data showed that the clay samples did not contain different minor and trace elements and the major elemental composition was similar (although not identical as it is natural clay taken from a riverbank, not commercially homogenised clay).

在两次独立的事件中进行了X射线荧光分析，一次在比勒陀利亚大学（2023年5月5日），另一次在非夸伊堡垒（2023年5月30日）。在进行XRF分析时，我使用了Bruker Tracer 5i便携式X射线荧光光谱仪，并采用地理化学三相工厂校准（覆盖Mg至U，见图41）。分析对象包括来自李伯·杜·托伊特收藏的五件雕塑（标注为LDT），来自非夸伊堡垒历史博物馆、Eshowe夸祖鲁纳塔尔十件雕塑（标注为FN），以及从希西家·恩图利的儿子帕迪·恩图利处获得的原始陶土样品。数据详见附录E，结果在此简要概述。数据显示，陶土样品中不含有差异显著的微量元素，其主要元素组成相似（尽管由于这是从河岸采集的自然陶土而非商业均质化陶土，因此并非完全相同）。