i found this gem in the mountains as a child and it looks similar to a sapphire on an old identification chart. I wanted an expert opinion on what it might be and if it is valuable.
Where in the mountains did you find it? Which country? At first glance, it looks like a garnet. I'm looking through rough I have found. It doesn't look like my sapphires or rubies, but more like my garnets, but not my alluvial ones. Garnet crystals are dodecahedral.