Sulfides are minerals that contain sulfur. These minerals are inorganic compounds, which means that they are formed through geological rather than biological processes. ... Oxides are those minerals that contain oxide anions, or oxygen, with ice and quartz being the exceptions.
- What are metal sulfides?
- What does sulfide mean?
- What is oxide ore?
- Which is an example of a sulfide mineral?
- Is sulphide a metal or nonmetal?
- Is sulfur a metal or nonmetal?
- Is gold a sulfide?
- What are the uses of sulfides?
- How do you identify sulfides?
- What is difference between oxide and hydroxide?
- What does oxide mean?
- What type of minerals are oxides?
What are metal sulfides?
Metal sulfides are a major group of minerals that provide the crystal chemist a rich field for investigation due to their diverse structural types. They are abundant and cheap since they usually exist in nature as minerals such as heazlewoodite (Ni3S2), chalcocite (Cu2S), pyrite (FeS2) and so on.
What does sulfide mean?
Sulfide, also spelled sulphide, any of three classes of chemical compounds containing the element sulfur. ... Organic sulfides are compounds in which a sulfur atom is covalently bonded to two organic groups.
What is oxide ore?
The oxide group of minerals include naturally occurring compounds where oxygen is combined with one or more metals such as iron, manganese, aluminum, chromium, titanium and copper. ... Many oxide minerals serve as major ore minerals of economic importance, and some as significant gemstones!
Which is an example of a sulfide mineral?
Some examples of sulfides include galena ( the principle ore mineral for lead and silver), cinnabar (the main ore mineral for mercury), and chalcopyrite (which provides copper). ... These minerals are not to be confused with sulfates which are comprised of a central atom surrounded by oxygen atoms.
Is sulphide a metal or nonmetal?
They break down into a powdery mass on tapping with a hammer. They are not sonorous and are poor conductors of heat and electricity. These materials are called non-metals. The examples of non-metals are sulphur, carbon, oxygen, phosphorus, etc.
Is sulfur a metal or nonmetal?
Sulfur (S), also spelled sulphur, nonmetallic chemical element belonging to the oxygen group (Group 16 [VIa] of the periodic table), one of the most reactive of the elements. Pure sulfur is a tasteless, odourless, brittle solid that is pale yellow in colour, a poor conductor of electricity, and insoluble in water.
Is gold a sulfide?
Gold(I) sulfide is the inorganic compound with the formula Au2S. It is the principal sulfide of gold. It decomposes to gold metal and elemental sulfur, illustrating the "nobility" of gold.
What are the uses of sulfides?
Tantalum and niobium sulfides have low friction coefficients and can be used as lubricants for optical and sensitive instruments. Rare earth sulfides are semi-conductors and have been used in thermoelectric devices. Alkaline earth sulfides plus those of calcium and zinc are used for phosphor compositions.
How do you identify sulfides?
Sulfide minerals consist of one or more metals combined with sulfur; sulfarsenides contain arsenic replacing some of the sulfur. Sulfides are generally opaque and exhibit distinguishing colours and streaks. (Streak is the colour of a mineral's powder.)
What is difference between oxide and hydroxide?
These classes consist of oxygen-bearing minerals; the oxides combine oxygen with one or more metals, while the hydroxides are characterized by hydroxyl (OH)– groups. Ice, H2O, is a simple oxide of the X2O type that incorporates hydrogen as the cation. ...
What does oxide mean?
An oxide (/ˈɒksaɪd/) is a chemical compound that contains at least one oxygen atom and one other element in its chemical formula. "Oxide" itself is the dianion of oxygen, an O2– (molecular) ion. Metal oxides thus typically contain an anion of oxygen in the oxidation state of −2.
What type of minerals are oxides?
Several oxide minerals are of economic significance and important sources of metals: Fe (hematite, magnetite), Cr (chromite), Mn (pyrolusite, manganite, psilomelane), Zn (zincite), Sn (cassiterite), Ti (ilmenite, rutile), and Al (bauxite) (Deer et al.