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Is a gem a rock?
A gem is considered any attractive mineral or rock which when cut and polished, may be used for ornamentation. A gem can be either a mineral or a rock, but most gems are minerals. A rock is an aggregate of many minerals, with no specific structure, while a mineral has a much more ordered atomic structure, with specific physical and chemical properties. A gem is not necessarily a crystal; lapis lazuli is not a mineral or a crystal, yet can still be considered a gem due to its desirable color and traits when polished.
What is the lustre of marble?
Marble does not have a lustre because it is not a mineral
The appearance of a mineral that can vary according to the impurities in that mineral as well as other factors?
The appearance of a mineral can vary due to impurities, which can introduce colors or bands into the mineral. Other factors such as crystal structure, cleavage, and luster can also influence the overall appearance of a mineral. These variations in appearance are important for identifying and classifying minerals.
The appearance or quality of light that is reflected from the surface of a mineral is called?
The appearance or quality of light that is reflected from the surface of a mineral is called luster. It describes how light interacts with the surface of a mineral, giving it characteristics such as metallic, pearly, vitreous, or silky.
What is the appearance of a minerals surface judged by its brilliance and reflective abilities?
The appearance of a mineral's surface is judged by its brilliance and reflective abilities which are determined by its luster. Luster can be categorized as metallic, non-metallic, or submetallic based on how the mineral reflects light. Each type of luster gives the mineral a distinct appearance.
A mineral that is rare and can be cut and polished given it a beautiful appearance?
crystals
What is a rare mineral that can be cut and polished?
A rare mineral that can be cut and polished could be called a gemstone.
Is dolomite valuable?
Yes, dolomite can be valuable because it is a mineral that is commonly used in construction, agriculture, and as a source of magnesium. It is often used as a building and ornamental stone due to its hardness and beautiful appearance. Additionally, dolomite is sometimes used as a soil conditioner to improve the pH levels and nutrient availability in agricultural soils.
Is sulphur shiny when polished?
Well, sulphur is an interesting mineral! When polished, sulphur can have a shiny appearance, but it may not be as shiny as other minerals like quartz or pyrite. Each mineral has its own unique beauty when polished, so it's all about appreciating the special qualities of each one. Just remember, every mineral is like a happy little friend waiting to shine in its own way!
A mineral that is rare and can be cut and polished is called?
A mineral that is rare and can be cut and polished is called a gemstone. Gemstones are typically prized for their beauty, rarity, and durability, making them valuable for use in jewelry and other decorative items. Examples of gemstones include diamonds, rubies, emeralds, and sapphires.
Valuable mineral the first letter is go?
Gold is a valuable mineral
What is a rare valuable mineral that can be cut and polished to give it abeautiful appearance?
Many different minerals are prized for their rarity and beauty. For example, phosphophyllite, crocoite, zoisite variety "tanzanite", to name just a few, are not found at many places, come in stunning colors and large, lustrous crystals, and can command enormous prices.
What is a polished mineral with a glassy luster called?
a rock
Is a mineral an ore or a gem if it contains something useful and can be sold for a profit?
Actually, a mineral is an ore if it contains another mineral. It can also be sold for a profit, once the USEFUL mineral is either melted out, or drilled out. Then the left over of the ore is useless, but the mineral itself can be sold for profit purposes.
What mineral has a smooth curvey surface?
Malachite is a mineral known for its smooth and curvy surface due to its botryoidal or concentric growth patterns. It often forms rounded, bulging shapes with a polished appearance, making it a visually striking specimen in its natural form.
Is a gem a rock?
A gem is considered any attractive mineral or rock which when cut and polished, may be used for ornamentation. A gem can be either a mineral or a rock, but most gems are minerals. A rock is an aggregate of many minerals, with no specific structure, while a mineral has a much more ordered atomic structure, with specific physical and chemical properties. A gem is not necessarily a crystal; lapis lazuli is not a mineral or a crystal, yet can still be considered a gem due to its desirable color and traits when polished.
Is as gem a rare mineral such as a diamond that can be cut and polished?
Yes.
