Amber is made of resin from petrified coniferous trees. Mother Nature had to work quite hard to develop amber, which makes its formation so fascinating. Amber is produced under conditions of heat, pressure, oxygen, and exposure to light, but time is, of course, the most crucial component. Resin would catch everything it touched before it had a chance to set, making amber like a time capsule that gives us a glimpse into prehistoric periods. Only amber is regarded as a soft stone and is not cold to the touch. It is also very light in weight.