The Rudraksha turned black during breaking-in—is there still hope? Try these methods
…帮助。金刚菩提盘黑了修复方法首先要说的是打底,金刚刚拿到手一定要先打底,把表面和Texturedeep inside, then start breaking-in (patina process). Pre-treatment takes at least one month, brushing for twenty minutes every day

