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Ultra fine products cannot be used to raise paramagnetic properties in a significant way and are typically around 1500cgs from our testing. This product is by far the best option for raising your paramagnetism without causing heavy metal contamination or excessive iron.We no longer sell the ultra fine basalt due to unnecessary transportation. You can source this product yourself at your local basalt quarry for next to nothing, we recommend the crusher dust grade for most purposes.
Research Phil Callahan to learn more about the benefits of paramagnetism in our soils
1Kg of Andesite = 2 1/3 cup