I have been investigating iron ore producers/explorers over the...

I have been investigating iron ore producers/explorers over the past couple of months and I have come across a few
companies investigating iron sand deposits.
Quite a few have made some headway and have found a few magnetite bearing sand deposits around the 10-15% Fe
mark. Some of these have done scoping studies and PFS and most of them are showing very low OPEX and
CAPEX figures.
I understand that some companies have been investigating coastal deposits of iron sand with magnetite, that they feel should be able to be offloaded directly onto ships after processing off shore.
I further understand that such deposits with iron sand containing magnetite grading 10% or more Fe will become an
environmental hazard with the gradual increase of water temperatures through global warming.
Have any of you heard similar reports, if so could you share info.
I would also be grateful if you could advise me of any iron sand projects that are currently being investigated.
If some interest is shown I will share my research with those willing to contribute,