EC Manufacturer: Medtronic Ophthalmics, Inc. A Division of Medtronic Xomed Inc. 6743 Southpoint Drive. Jacksonville, FL 32216 USA. 0123. Authorized Representative (for EC regulatory matters) Medtronic B.V.
2016-09-28T08:01:51-04:00. The two kinds of minerals are: macrominerals and trace minerals. Macro means large in Greek (and your body needs larger amounts of macrominerals than trace minerals). The macromineral group is made up of calcium, phosphorus,magnesium, sodium, potassium, chloride, and sulfur. This question is archived.
Although similar to rocks, minerals are the building blocks for making rocks, and are found in various types of rock in differing shapes and chemical compositions throughout the Earth's crust. Although minerals differ in shape, composition and distribution, four major classes of minerals make up the Earthâs crust. Silicates The silicate class of minerals makes up 90 percent of the Earthâs crust, and is compounds of silicon and other chemical elements. The two most common silicate types found in the Earthâs crust are quartz and feldspar minerals.