major minerals

ma·jor min·er·als

(mā'jǒr min'ĕr-ălz)
Minerals required by adults in amounts exceeding 100 mg/day.
References in periodicals archive ?
Canada ranks in the top five countries in the global production of 11 major minerals and metals: First in potash
In the complex microprophries is very fine grained with orthoclase, perthite, quartz, biotite, magnetite, epidote as major minerals. Alkali feldspar, perthite and orthoclase make up the 84 % of the rock.
The evaluation templates for Star Rating was notified vide notification dated 23.05.2016 for major minerals Based on the performance of the mining lease, 1 to 5 star rating, the positive impact of getting higher Star Rating will drive miners to quickly adopt sustainable mining practices.
Ranga Rao further said that geo referral policy is being brought for all major minerals in the state and the permissions for mining activities are being given through auction in an e-permit model.
The meeting discussed different proposals to increase in royalty rates for major minerals and also gave approval for revision of application fee and rents under small scale mining.
With over 25 years in the business, Mr Ryan has worked on projects ranging from major minerals and waste schemes to large-scale mixed-used developments and a variety of energy projects.
"We assessed the progress of different mineral- rich states,and found that most have neither the required manpower nor the technical expertise to carry out auctioning of identified blocks of major minerals in the near future," said a ministry official.
It says, "The state sector is to include all large-scale and mother industries, foreign trade, major minerals, banking, insurance, power generation, dams and large-scale irrigation networks, radio and television, post, telephone and telegraph services, aviation, shipping, roads, railroads and the like.
Kazakhstan has one of the richest mineral reserves in the world, and is in the top ten in size for a number of major minerals. It has the potential to overtake current major mineral producers but needs substantial investment from foreign companies which have the necessary capital and technology to develop its deposits.
"This is a very welcome decision as coal-rich states like Jharkhand Odisha West Bengal Chhattisgarh and Madhya Pradesh will benefit from the auctions unlike now where only the centre stands to benefit." He wanted the same reforms to be extended to the mining and sale of other major minerals like iron ore.
Mineralogical investigations show that gibbsite (Al[(OH).sub.3]), diaspore (AlO(OH)), goethite (FeO(OH)) and hematite ([Fe.sub.2][O.sub.3]) are the major minerals in the bauxite ores, anatase (Ti[O.sub.2]), quartz (Si[O.sub.2]) and calcite (CaC[O.sub.3]) are minor accessories (Table 2 and Figs.