Classes of Mineral

Although the earth has high minerals in silicon and oxygen other class also exist like calcite, pyrite, hametite, magnetite etc. the none silicate minerals are also of great economic importance as they are more concentrate minerals more than the silicon minerals. Silcon exist in six-fold or octahedral structure or coordination. The level polymerization can be determined by the tetrahedral corners formed

There are Native elements which are chemically bonded to other mineral elements. And are either semi-metals, non-metals. Some alloys and solid solutions are also included. Distributed into groups by their structure, ductility and chemical attributes including shinning metallic lustre. The Gold group metals, silver and cupper exist, the platinum group, the iron nickel are characterized by several iron-nickel alloy varieties, examples are taenite and kamacite. Combinations are also available within the Native carbon group and it occurs in allotropes of graphite and diamond, the diamond is much stronger structure than graphite which accounts for diamonds hard structure.

Sulfides Minerals

We love this new creation of BangPOV. It’s all about point of view fun and these girls surely bring the excitement and joy to these lucky guys!

There is always some truth to saying guys are loving big asses. And you know what? It’s all real!

So, what you really need to do porn? Well, good body and cute face would be enough to start – and these girls are just like that.

There is so many massage techniques that can bring you satisfaction. One of them is the nuru one and you can be sure it will be the ultimate choice of yours once you find out how it works!

Have you heard these horror stories about fake cops trying to scam people? They are not doing it anymore as we spread the word!

One night, a was babysitting for a family who owned the local apple orchard. I was in the kitchen cooking dinner for the children, and they were watching television in the living room. When dinner was ready, there was a child missing. I search the house and called his name, but he didn’t answer. I was such a busted babysitter! I ran outside to check the yard. When I couldn’t find him, I realized I needed help. The orchard was so large, I could never cover the property before it got dark. When I called the children’s parents, there was no answer. I decided to call the police. Within minutes, there were several officers searching the property. I went to get the other children’s jackets from their rooms so I could take them outside, and found the missing child sleeping in the closet. I was very relieved and embarrassed.

She arrived into his house feeling sad. He wondered who had offended this Caucasian woman. She was his longtime friend. She told him she owed a friend some money. The friend began to insult her when she failed to pay it in time. So he wanted him to assist. Being generous, the Afro-American man told her to wait in the sitting room so that he could go the bedroom and get the money. The lady insisted that she wanted to escort her to his bedroom because she felt black man could be better. So they went. On arrival, she began to strip herself naked as he grabbed the man’s belt and untied so fast as if she was on a rescue mission. The man began to lick her tits as they began to romp like a tiger and a tigress.

To call a girl huge dicks lover she needs to have a particular set of skills in her hands.

You just need to know what to do with all this oil to satisfy your girl.

Nothing but great kind of videos – povd tube is filled with intimate actions.

Sulphide minerals are chemical combinations made of combinations of one or more metallic or semimetalic compounds with sulphur, arsenic or selenium or tellurium. And most time it can form deposites abilities and can form a sulfurous smell when in powdered form such as pyrides. Many sulfide minerals types are economically important as metal ores e.g sphalerite (ZnS), Galena, molybdenum and ore of Mercury and many others.

Mineral Oxides

Mineral Oxides are divided into 3 groups which are simple oxides, hydroxides and multiple oxides. The simple are represented as O2− the major anion and bonding that can be further divided into ratio of oxygen and corresponding cations. H20 is an example which oxides can exist in combination with oxygen we also have peroxides in ratio combination of 2:2. There are existence of other large forms of oxides combination

Halides Minerals

Sodium chloride (a table salt) is an example of minerals that combine to form clorides other example of combination include halogen like fluorine, chlorine, iodine and bromide which are the major anion combining to form mineral halides.

Carbonates Minerals

Carbonates minerals contain the major anionic group which is represented as (CO3]2−. They are known for their cleavage tendencies maintaining a rhombohedra cleavage, and they do react with acidic substances. Hydrochloric acid is used to differentiate carbonates from non- carbonate during geologists exploration. The reaction of carbonates with acide is responsible for the large formation of limestone caves.

Sulfates Minerals

Sulphate minerals is found to have the combination of the sulfate anion represented as [SO4]2−. They are fragile, translucent and transparent show tendencies. They precipitate and evaporate when observed forming saline waters. The most common hydrous sulfate are the gypsum category (CaSO4⋅2H2O.

Phosphates Minerals

These categories of minerals are characterized by the tetrahedral [PO4]3− anion, however they have generalized structure, the phosphorus is replaced by vanadium, antimony and arsenic. Apatite group are the most common phosphate which also has fluorapatite (Ca5(PO4)3F) within its group and chlorapatite (Ca5(PO4)3Cl) etc. They are major crystalline contents of the teeth and bones. The relatively available monazite group structure of ATO4.

Minerals’ Physical properties

Minerals are classified according to the physical properties and characteristics from the more complex, physical properties, luster, colour, reactions, crystal forms e.t.c as seen in optical or x-ray diffraction analysis. Hardness Occurring Minerals The hardest substance known is Diamond and it is controlled by strong crystalline chemical structure of the minerals which has 10 Mohs … Continue reading Minerals’ Physical properties

Mineral Chemistry

The most abundant chemicals element is oxygen, silicon others coming afterwards are in decreasing order of abundance such as aliminium, iron, magnesium, calcium, sodium and potassium. Minerals exist in combinations too example such as magma rich in iron and magnesium. Many variety of these minerals chemical composition varies among between end member species. For example, … Continue reading Mineral Chemistry

Basic Definition of Minerals

Minerals are defined by their characteristics and with certain criteria’s like stability at room temperature, for instance exception is mercury which crystalizes at -39 degree Celsius and metastable at 25°C. Minerals being chemical compound can be represented by fixed formulas. A Mineral is an element or chemical compound which may be crystalline and formed as … Continue reading Basic Definition of Minerals

Minerals? Yes, Minerals.

Any naturally occurring solid substance and inorganic matter which is representable by a chemical formula which can either be abiogenic and has an atomic structure is referred to as a Mineral. It is quite different from a rock which can comprise of an aggregate of minerals and non minerals and may not have specific chemical … Continue reading Minerals? Yes, Minerals.