Mineral resource and mineral reserve

Mineral resource vs mineral reserve Mineral resource of a country (or an area) means the total available economically viable mineral stored in that country (or in the area). Mineral Reserve is the availability of a particular mineral in an occurrence that can be economically exploited. Please remember, reserve can be of proved, estimated or probable category, depending on the degree of the intensity of geological investigation carried out to assess the potentiality of that occurrence. But mineral resources are usually tentative. In other words, Reserve pertains to a particular mineral while the Resource is the sum total of all the economic minerals.
Mineral resources are defined as natural concentrations of minerals or, bodies of rock that are, or may become, of potential economic interest due to their inherent properties.
The classification includes the more important groups of primary ores:

•  Syngenetic deposits; contemporaneous with the inclosing rocks:

1. Sedimentary beds; mechanical, chemical, organic, etc.
2. Magmatic segregations; consolidated from molten magmas.

• Epigenetic deposits;, deposited later than the inclosing rocks:

1. Contact-metamorphic deposits; deposited in intruded rocks by fluids passing from consolidating intruding rocks.
2. Hydrothermal fluids;
Pegmatite veins; deposited by "aqueo-igneous" magmatic solutions.
Deposits of the deep vein zone; formed at high temperature and under great pressure, generally in and along fissures.
Deposits formed at moderate and shallow depths by ascending hot solutions.
Deposits formed at and near the surface by ascending hot solutions.
Deposits formed at moderate and shallow depths by cold meteoric solutions.