As proposed earlier, I have put this subject in a separate article, to keep the information on both Gem mining and Embedding separated and thus hopefully easier to comprehend. The main purpose of mining in Kingdoms of Middle Earth is to acquire the Gem Shards needed to make the Gems used for embedding in gear.
Here I will give an overview of the things necessary to find the mines on the map, mine them successfully for Gem Shards, and other possible benefits from mining. To mine we need to know the following things:
With update 10.3, a new system of enhancing gear has been introduced, besides upgrading and enhancing, namely Embedding (Gems). So what does this feature exactly do and what do you need to do this? As in the article about upgrading and enhancing, I will try to combine everything you need to know into this one article. For a run down of what gears to embed with Gems, see this article.