This board is becoming ridiculously boring for a lurker like myself, so I figure I will ask a question I was pondering last week. Note I have done very little research into it so don’t jump all over me for getting certain facts wrong (mainly the depth of Blackbird).

From what I can see Blackbird is surface deposit (can be mined by open pit), that possibly extends deep enough to make an underground mining necessary; how do chromium deposits form. From what I can see in South Africa and Madagascar is they are primarily reef deposits, is Blackbird the same. If so that leads me to my second question, Reef mining is essentially impossible in Canada because of workforce safety and experience issues so how do you mine it? Cut and fill (seems expensive)?