Boiling With Hot Stones

by Storm



Post Script

Upon moving to southern California, I searched for rocks that might make decent boiling stones.  One of the locally-abundant rocks one can find is green (low iron content) and black (higher iron content) nephrite jade.  While it is much harder than the talc/magnesite, the jade is quite carveable—at least with modern tools.  The jade that is predominantly black never failed as a boiling stone.

The low-iron, green nephrite jade failed often, usually cracking and breaking after only one use.  The talc/magnesite and the black nephrite jade performed perfectly, even after half-a-dozen uses!

Upon moving to southern California, I recently tried out some local rocks, like this talc.  The tan/orange inclusions are magnesite, which is used to make furnace fire-bricks (and is one of the parent materials that metamorphoses into talc).  I think that, while talc/magnesite also never failed to perform, it holds more heat than even basalt—my new favorite boiling stone!

Back to the Beginning




Visit Storm's website at
Storm (1969 - 2008)
Storm immersed himself into the wellspring of adventure and the experience of the Stone Age. Thank you, Storm, for sharing your heartfelt enthusiasm of the wilderness and skills of the past through your engaging articles. You will be sorely missed.

PrimitiveWays Home Page

We hope the information on the PrimitiveWays website is both instructional and enjoyable. Understand that no warranty or guarantee is included. We expect adults to act responsibly and children to be supervised by a responsible adult. If you use the information on this site to create your own projects or if you try techniques described on PrimitiveWays, behave in accordance with applicable laws, and think about the sustainability of natural resources. Using tools or techniques described on PrimitiveWays can be dangerous with exposure to heavy, sharp or pointed objects, fire, stone tools and hazards present in outdoor settings. Without proper care and caution, or if done incorrectly, there is a risk of property damage, personal injury or even death. So, be advised: Anyone using any information provided on the PrimitiveWays website assumes responsibility for using proper care and caution to protect property, the life, health and safety of himself or herself and all others. He or she expressly assumes all risk of harm or damage to all persons or property proximately caused by the use of this information.

© PrimitiveWays 2013