Traditional Geomancy is a divination technique in which the practitioner channels Earth energy to make a reading.
NeoGeomancy differs not by that definition, but that is has a 'new' or more modern perspective drawing from scientific knowledge, such as chemical make-up of the rocks used. It is important to convey that modern-day geomancers usually rely heavily on traditional astrology while neogeomancy does not.
The technique(s) revealed here are not complete or static, but are a representation of the practice I have developed. I encourage any practitioner to take what works for them and to abandon what does not. A seasoned diviner may read much more deeply into these techniques. A seasoned traditional geomancer may scoff at the technique. This is my attempt as a geoscientist to take geomancy into the modern scientific age, placing less emphasis on deep divination and treating it a bit more as a personal game.
Connect with the Story of the Stone - the personal connection to each piece of Earth is important. Geologic maps and research quickly reveal what is known of the general geologic history of nearly every region on Earth. Just as you have a life story, each stone has an Earth-life story. Respect this and begin to understand the material.
Rocks over minerals - while pure samples of mineral crystals are pretty and many metaphysical texts discuss the qualities of each, I prefer using rocks over minerals for several reasons. 1) most simply, the neogemancy method I use can physically break samples, 2) mineral crystal samples are pure(ish) chemical substances while rocks are made up of several minerals. I think about this like biodiversity: mono-crop agriculture is devastating to soil and a forest of one tree is susceptible to pathogens. Reductionism applied to the silicate world seems just as harmful. Working with a silicate 'ecology' within a complete rock is more akin to working with Earth, 3) often times mineral samples, when purchased, are generally from unknown locations. Maybe a country or state tag are sold along with the sample but often the dealer does not know anything more specific. Many, not all, minerals on the 'gem and mineral trade' are not ethically collected. They likely come from a mine process that is environmentally damaging, supports poor labor practices, and/or has a high energy cost rooted in fossil fuels. Buying a simple and popular amethyst crystal may be doing more environmental harm to the Earth than you intend. 4) while I actually sell ethically and sustainable harvested silicate materials for magick and neogeomancy, I 100% encourage all practitioners to collect their own exotic material. Taking long pilgrimages to sacred rock sites is an amazing joy in my life and I suggest such a pilgrimage to everyone. Picking up a simple stone on a hike you love is great, but there is something much deeper about visiting a specific geologic province with the intent to collect material for your divination. Extremely powerful!