What is a Gemstone?
The gemstone is just a piece of minerals or crystal that well cut and polished by tools in gemological labs. While Explore of beautiful minerals and gems we found more than 4000 gems that are amazing and attractive by their appearance. Gemstones appearance, luster, hardness, specific gravity, and other physical properties are depending on their internal chemical composition.
A gemstone is a collective term for all ornamental stones that possess the following attributes:
- Beauty
- Rarity
- Durability
- Demand
- Tradition
- Portability
What is a Gemstone?
The gemstone is just a piece of minerals or crystal that well cut and polished by tools in gemological labs. While Explore of beautiful minerals and gems we found more than 4000 gems that are amazing and attractive by their appearance. Gemstones appearance, luster, hardness, specific gravity, and other physical properties are depending on their internal chemical composition.
A gemstone is a collective term for all ornamental stones that possess the following attributes:
- Beauty
- Rarity
- Durability
- Demand
- Tradition
- Portability
Gemstones have three basic origins
- Inorganic: minerals.
- Organic: formed from living organisms.
- Man-made: formed in a laboratory environment.
What is a mineral?
A mineral can be defined as being of inorganic origin with a definite chemical composition, physical properties which are relatively constant and a crystalline structure.
In mineralogy, there are several thousand minerals listed, but only about 100 have been cut as gemstones with fewer than 50 having the necessary qualities to be truly classed as “Gemstones”.
What is rock?
A rock can be defined as any mineral or mixture of minerals that make up an important part of the earth’s crust
Rock is a metamorphic rock type that changes its shape with changing heat and pressure. Rock is occurring solid mass and mineraloid matter.
Rock are categories on the basses of its Composition and composed one mineral. Quartz and Pyrite are types of rock that suit the one mineral Composition.
Rock Classification:
Rock is Further classified below on the bases of formation
- Metamorphic
- Sedimentary
- Igneous
Examples:
- Granite (Feldspar, Quartz, and Mica)
- Lapis Lazuli: (Lazurite, Sodalite, Calcite, and Pyrite)
What is a Mineral
A mineral can be defined as being of inorganic origin with a definite chemical composition, physical properties which are relatively constant and a crystalline structure.
In mineralogy, there are several thousand minerals listed, but only about 100 have been cut as gemstones with fewer than 50 having the necessary qualities to be truly classed as “Gemstones”.
What is a Gemstone?
The gemstone is just a piece of minerals or crystal that well cut and polished by tools in gemological labs. While Explore of beautiful minerals and gems we found more than 4000 gems that are amazing and attractive by their appearance. Gemstones appearance, luster, hardness, specific gravity, and other physical properties are depending on their internal chemical composition.
A gemstone is a collective term for all ornamental stones that possess the following attributes:
- Beauty
- Rarity
- Durability
- Demand
- Tradition
- Portability
Gemstones have three basic origins
- Inorganic: minerals.
- Organic: formed from living organisms.
- Man-made: formed in a laboratory environment.
What is a mineral?
A mineral can be defined as being of inorganic origin with a definite chemical composition, physical properties which are relatively constant and a crystalline structure.
In mineralogy, there are several thousand minerals listed, but only about 100 have been cut as gemstones with fewer than 50 having the necessary qualities to be truly classed as “Gemstones”.
Example Of Minerals
Quartz: Quartz is one of the most abundant minerals on Earth and is commonly used as a gemstone. It has a definite chemical composition (SiO2), exhibits physical properties such as hardness and cleavage, and has a crystalline structure.
Diamond: Diamond is a well-known gemstone with a definite chemical composition (pure carbon), distinct physical properties (extreme hardness, high refractive index), and a crystalline structure.
Emerald: Emerald is a variety of the mineral beryl, which has a chemical composition (Be3Al2Si6O18), specific physical properties, and a crystalline structure. It is prized for its green color.
Ruby: Ruby is a red variety of the mineral corundum (Al2O3), which meets the criteria of being a gemstone due to its color, hardness, and crystal structure.
Sapphire: Sapphire is another variety of corundum that comes in various colors, commonly blue. It has the necessary qualities to be classified as a gemstone.
What is a Rock?
A rock can be defined as any mineral or mixture of minerals that make up an important part of the earth’s crust
Rock is a metamorphic rock type that changes its shape with changing heat and pressure. Rock is occurring solid mass and mineraloid matter.
Rock are categories on the basses of its Composition and composed one mineral. Quartz and Pyrite are types of rock that suit the one mineral Composition.
What is a Gemstone?
The gemstone is just a piece of minerals or crystal that well cut and polished by tools in gemological labs. While Explore of beautiful minerals and gems we found more than 4000 gems that are amazing and attractive by their appearance. Gemstones appearance, luster, hardness, specific gravity, and other physical properties are depending on their internal chemical composition.
A gemstone is a collective term for all ornamental stones that possess the following attributes:
- Beauty
- Rarity
- Durability
- Demand
- Tradition
- Portability
Gemstones have three basic origins
- Inorganic: minerals.
- Organic: formed from living organisms.
- Man-made: formed in a laboratory environment.
What is a mineral?
A mineral can be defined as being of inorganic origin with a definite chemical composition, physical properties which are relatively constant and a crystalline structure.
In mineralogy, there are several thousand minerals listed, but only about 100 have been cut as gemstones with fewer than 50 having the necessary qualities to be truly classed as “Gemstones”.
Classification of Rocks
Rock is Further classified below on the bases of formation
- Metamorphic
- Sedimentary
- Igneous
Examples:
- Granite (Feldspar, Quartz, and Mica)
- Lapis Lazuli: (Lazurite, Sodalite, Calcite, and Pyrite)
There are three main groups of rocks, namely:
Igneous
Yellow sapphire is a variety of corundum that consisting of aluminum oxide too. The chemical formula for sapphire stone is Aluminium oxide, Al2O3 and its hardness is measure in moh’s scale which is 9 mohs most harder stone after diamond. Some interesting things that make yellow sapphire precious one is Specific gravity, Refractive index, and Luster.
Specific gravity: 4.0~4.1
Refractive index: nω=1.768–1.772, nε=1.760–1.763,
Luster: Vitreous
Sedimentary
Yellow sapphire is a variety of corundum that consisting of aluminum oxide too. The chemical formula for sapphire stone is Aluminium oxide, Al2O3 and its hardness is measure in moh’s scale which is 9 mohs most harder stone after diamond. Some interesting things that make yellow sapphire precious one is Specific gravity, Refractive index, and Luster.
Specific gravity: 4.0~4.1
Refractive index: nω=1.768–1.772, nε=1.760–1.763,
Luster: Vitreous
Metamorphic
Yellow sapphire is a variety of corundum that consisting of aluminum oxide too. The chemical formula for sapphire stone is Aluminium oxide, Al2O3 and its hardness is measure in moh’s scale which is 9 mohs most harder stone after diamond. Some interesting things that make yellow sapphire precious one is Specific gravity, Refractive index, and Luster.
Specific gravity: 4.0~4.1
Refractive index: nω=1.768–1.772, nε=1.760–1.763,
Luster: Vitreous
Gemstones can be further classified into:
- 1. Groups
- 2. Species
- 3. Varieties
Group
Species
Variety
Feldspar
- Beryl Chrysoberyl
- Corundum
- Orthoclase
- Microcline
- Plagioclase
- Emerald, Aquamarine, Alexandrite, Chrysoberyl.
- Ruby and Sapphire.
- Moonstone.
- Amazonite.
- Labradorite.
Garnet
- Almandine Pyrope
- Grossular
- Andradite
- Spessartite
- Uvarovite
- Opal Quartz
- Chalcedony
- Tourmaline
- Purple/ Blood red.
- Hessonite.
- Demantoid.
- Orange, yellow, flame red.
- Emerald green.
- Black Opal, White Opal, Fire Opal, Amethyst, Citrine.
- Agates, Cornelian, Onyx.
- Indicolite, Rubellite, Green Tourmaline.
Group
Species
Variety
Feldspar
- Beryl Chrysoberyl
- Corundum
- Orthoclase
- Microcline
- Plagioclase
- Emerald, Aquamarine, Alexandrite, Chrysoberyl.
- Ruby and Sapphire.
- Moonstone.
- Amazonite.
- Labradorite.
Garnet
- Almandine Pyrope
- Grossular
- Andradite
- Spessartite
- Uvarovite
- Opal Quartz
- Chalcedony
- Tourmaline
- Purple/ Blood red.
- Hessonite.
- Demantoid.
- Orange, yellow, flame red.
- Emerald green.
- Black Opal, White Opal, Fire Opal, Amethyst, Citrine.
- Agates, Cornelian, Onyx.
- Indicolite, Rubellite, Green Tourmaline.