Ancient buildings joined with lime mortar have stood for thousands of years, while cement lasts about 75 years and no maker guarantees it beyond 100. Old palaces of 70 to 76 floors were built without a single nail of iron, and the more iron is used today, the higher the electromagnetic current.
Black basalt forms from lava brought up from deep in the earth, so it carries more energy and strength, which is why black road metal sells at a higher price. Which wood suits which planet and use is taught later.