This experimental study of fire-cracked rocks sought to determine if varied rock fracture attributes could be correlated with specific past uses of heated stones. A total of 864 rocks were heated in 41 fires that replicated hearth, stone boiling, sweat lodge, and earth oven uses of quartz, quartzite, and sandstone cobbles as heating elements. Analysis of experimental results considered three fire-cracked rock attributes (fracture rate, fragment type, and fragment shape) which can be correlated with some of the specific uses of rocks as heating elements. These attributes can be applied to fire-cracked rock assemblages from archaeological contexts to determine their past uses with relatively consistent results as long as the archaeological context of the fire-cracked rocks is carefully considered.

中文翻译：

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不同使用环境下的火裂岩实验分析

这项对火裂岩石的实验研究试图确定不同的岩石断裂属性是否与过去加热石头的特定用途有关。总共 864 块岩石在 41 次火中被加热，这些火复制了壁炉、石头沸腾、汗水小屋和土炉使用石英、石英岩和砂岩鹅卵石作为加热元件。对实验结果的分析考虑了三种火裂岩石属性（破裂率、碎片类型和碎片形状），这些属性可能与岩石作为加热元件的一些特定用途相关。这些属性可以应用于考古背景下的爆裂岩石组合，以确定它们过去的用途，结果相对一致，只要仔细考虑爆裂岩石的考古背景。