Sign up to join our community!
Lost your password? Please enter your email address. You will receive a link and will create a new password via email.
✳️Cinnabar is a toxic mercury sulfide mineral with a chemical composition of HgS. 🔷It is the only important ore of mercury. It has a bright red color that has caused people to use it as a pigment, and carve it into jewelry and ornaments for thousands of years in many parts of the world. Its […]
🔷Kimberlites, named after the town of Kimberly, South Africa, where they were first described, are volcanic rocks that originate in Earth’s mantle.🔷They are mined exclusively for diamonds. The photo shows the “Big Hole” at Kimberly.🔷The Hole was mined from 1871 to 1914 and reached a depth of 240 m below the surface. Subsequently it filled […]
Geological Time Scale The geological time scale is a system of chronological measurement that relates geological events and geological time to a numerical scale. It is used to describe the timing and relationships between events that have occurred throughout Earth’s history. The time scale is divided into four main parts: Eons, Eras, Periods, and Epochs. […] Table of Contents Toggle Geological Time Scale
What are Rare Earths? The Japanese call them “the seeds of technology.” The US Department of Energy calls them “technology metals.” They make possible the high tech world we live in today – everything from the miniaturization of electronics, to the enabling of green energy and medical technologies, to supporting a myriad of essential telecommunications and defense systems. […] Table of Contents Toggle What are Rare Earths?Which Elements ...
Geology 101 is the study of the Earth and its materials, structures, processes, and history. It is a broad field that encompasses many different disciplines, including mineralogy, petrology, paleontology, and geophysics. Geologists study the Earth’s physical features, including its rocks, minerals, soils, and water. They also study the Earth’s internal structure and the processes that […] Table of Contents Toggle Why Study Geology?What Do GEOSCIENTISTS ...
What is Volcano I heard about the volcano before 🤔??….We all see volcanoes in movies and news, but did you ask yourself why or how do they happen? On our trip today, we will explore the volcano and see its formation, why it happens, and how.. Are you ready, hero ??Let’s start our journey The […] Table of Contents Toggle What is VolcanoOne ...
An unconformity is a surface of erosion or non-deposition that separates two rock units that have different ages. It represents a time gap in the geologic record, and it occurs when sedimentary rocks are tilted, uplifted, and eroded before new sediment is deposited on top of them. There are three types of unconformities: Disconformities A […] Table of Contents Toggle There are three types of unconformities:
Minerals are homogeneous, naturally occurring, inorganic solids that have a definite crystalline structure and chemical composition. In 1995, the World Minerals Organization put another definition saying that “a mineral is an element or a chemical compound that is naturally crystalline and formed as a result of geological processes.”Minerals have their own specific physical properties which […] Table of Contents Toggle Minerals are classified according to their chemical composition.
The difference between mineral, metal and ores Many people confuse three completely different classes of substances (minerals, ores, and metals), so that metal becomes a mineral, and all minerals become ores. Minerals Minerals are inorganic solids (elements or compounds) that have distinct physical properties. Each substance has a known atomic structure and a fixed chemical […] Table of Contents Toggle MineralsOres materialsMetals
Geology online Quizzes questions and answers. Free online quiz with multiple-choice questions (MCQ) without registration. Geology Multiple Choice Questions geology questions and answers | geology questions for competitive exams | geology exam questions. Geology quiz questions and answers.geology quizes. Geology online quiz.
Crystalline materials are solid substances with regular, ordered atomic structures and sharp melting points. Amorphous materials, on the other hand, lack a crystalline structure due to their irregular atomic arrangements and often have a glassy or rubbery consistency. Furthermore, amorphous materialRead more
Crystalline materials are solid substances with regular, ordered atomic structures and sharp melting points. Amorphous materials, on the other hand, lack a crystalline structure due to their irregular atomic arrangements and often have a glassy or rubbery consistency. Furthermore, amorphous materials can exhibit properties not found in crystalline materials such as increased toughness, ductility and flexibility. Consequently, these characteristics make amorphous materials well-suited for applications like coatings and insulation.
See lessCrystalline materials are solid substances with regular, ordered atomic structures and sharp melting points. Amorphous materials, on the other hand, lack a crystalline structure due to their irregular atomic arrangements and often have a glassy or rubbery consistency. Furthermore, amorphous materialRead more
Crystalline materials are solid substances with regular, ordered atomic structures and sharp melting points. Amorphous materials, on the other hand, lack a crystalline structure due to their irregular atomic arrangements and often have a glassy or rubbery consistency. Furthermore, amorphous materials can exhibit properties not found in crystalline materials such as increased toughness, ductility and flexibility. Consequently, these characteristics make amorphous materials well-suited for applications like coatings and insulation.
See lessCrystalline materials are solid substances with regular, ordered atomic structures and sharp melting points. Amorphous materials, on the other hand, lack a crystalline structure due to their irregular atomic arrangements and often have a glassy or rubbery consistency. Furthermore, amorphous materialRead more
Crystalline materials are solid substances with regular, ordered atomic structures and sharp melting points. Amorphous materials, on the other hand, lack a crystalline structure due to their irregular atomic arrangements and often have a glassy or rubbery consistency. Furthermore, amorphous materials can exhibit properties not found in crystalline materials such as increased toughness, ductility and flexibility. Consequently, these characteristics make amorphous materials well-suited for applications like coatings and insulation.
See lessThe difference between crystalline and amorphous Crystalline solids are solids that are composed of a repeating, ordered arrangement of atoms or molecules. These solids have a regular, three-dimensional structure that is repeated throughout the solid, resulting in a highly ordered and predictable arRead more
The difference between crystalline and amorphous
Crystalline solids are solids that are composed of a repeating, ordered arrangement of atoms or molecules. These solids have a regular, three-dimensional structure that is repeated throughout the solid, resulting in a highly ordered and predictable arrangement of the atoms or molecules. Crystalline solids are typically hard, strong, and have a high melting point. Examples of crystalline solids include metals, minerals, and some types of plastics.
Amorphous solids, on the other hand, do not have a repeating, ordered arrangement of atoms or molecules. These solids are characterized by a disordered, random arrangement of atoms or molecules, resulting in a less predictable structure. Amorphous solids are typically softer and more flexible than crystalline solids, and have a lower melting point. Examples of amorphous solids include glass, rubber, and some types of plastics.
One way to distinguish between crystalline and amorphous solids is through their physical properties. Crystalline solids typically have a higher melting point, are harder and stronger, and have a more ordered structure than amorphous solids. Additionally, crystalline solids often have a distinctive, repeating pattern when viewed under a microscope or through X-ray diffraction techniques. Amorphous solids, on the other hand, do not have a repeating pattern and tend to be softer and more flexible.
See less