In the application of geomantic omen, foxes have two different functions, one is to attract peach blossoms and the other is to avoid rotten peach blossoms. Pink crystals attract peach blossoms, so foxes carved with pink crystals attract peach blossoms. Obsidian absorbs negative energy to ward off evil spirits, so foxes carved with obsidian avoid rotten peach blossoms. The so-called rotten peach blossom luck is just some bad peach blossom luck.
Which one is more suitable depends on whether you want to have good luck or avoid bad luck. For single people, the pink crystal fox will be better and can help you make money. For people or couples in love, obsidian fox is better, which can avoid bad luck and make feelings better.