0
What else can I help you with?
Jamal is testing some minerals to try to identify them Look at the drawing What property is Jamal testing?
Jamal is likely testing the hardness of the minerals, which is a common property used for identification. This could involve scratching the minerals with a reference material or observing how easily they can be scratched. By assessing their resistance to scratching, he can compare the results with known hardness scales, such as Mohs scale, to help identify the minerals.
Do minerals have a hardness of 4 or greater?
There is a scale of mineral hardness therefore obviously some will be softer than "4" and others harder because "4" is jut one point on that scale.
Do all minerals contain usful metals?
No, not all minerals contain useful metals. Minerals are naturally occurring inorganic substances with a variety of compositions, and only some of them will contain metals that are economically valuable for things like industrial purposes or jewelry making.
Describe seven physical properties that help distinguish one mineral from another?
Color - Different minerals exhibit a wide range of colors due to variations in their chemical composition. Hardness - Minerals have different levels of hardness, which can be measured using the Mohs scale from talc (softest) to diamond (hardest). Cleavage - The way a mineral breaks along planes of weakness can provide clues to its identity (e.g., cubic cleavage in halite). Luster - The way light reflects off a mineral's surface can be metallic, vitreous, pearly, silky, or dull. Density - Different minerals have distinct densities based on their composition and crystal structure, which can help differentiate them. Streak - The color of a mineral's powder when rubbed against a hard surface can be different from its external color. Magnetism - Some minerals are magnetic, while others are not, providing a useful diagnostic property.
5. Which of the following is a chemical property color freezing point ability to react with oxygen hardness?
Reactivity is a chemical property; all the others are physical properties. (Color is ... kinda iffy; you could make a case for it being a property of the electronic structure of the material in some cases.)
Why is hardness of valuable property of some minerals?
Because it is :P
How many silicate minerals are present in Mohrs hardness scale?
There are numerous silicate minerals present in Mohs hardness scale. Some examples include quartz (hardness of 7), feldspar (hardness of 6), and amphibole (hardness varies based on composition). Each of these minerals falls at different points on the scale, indicating their relative hardness compared to other minerals.
How do minerals contribute to the hardness of rocks?
Minerals contribute to the hardness of rocks by their physical and chemical properties. Some minerals like quartz are harder and more resistant to abrasion, while others like calcite are softer and less durable. The arrangement and bonding of mineral crystals within rocks can also affect their overall hardness.
When minerals are hit with a hammer what happen?
When minerals are hit with a hammer, they may break, fracture, or shatter, depending on their hardness and crystal structure. Some minerals will form cleavage along specific planes, while others will show irregular fractures. This property can be used to help identify minerals based on their physical characteristics.
Why can some minerals be used as gemstones?
The most valuable gemstones are the clear, crystalline form of the harder minerals such as diamond, corundum, tourmaline, topaz, and garnet. Other minerals with exceptional clarity or color, and even some rock types are known commercially to be valuable as gemstones, but hardness is a key to frequent wearability.
What property can be used only for a few minerals?
Magnetism is a property that can be used for only a few minerals. Some minerals exhibit magnetic properties, while others do not. This property can be helpful in identifying and distinguishing certain minerals from others.
Are some rocks harder than other rocks?
Absolutely, based on the hardness of the minerals that compose them.
What are some valuable minerals that come out of volcanoes?
Sulfer and Igneous rock
Is Magnetism is a special property of some minerals?
Yes
How could you determine the hardness rating for a mineral not listed on the scale?
Moh's Scale of Hardness # Talk # Gypsum # Calcite # Fluorite # Apatite # Orthocalse Feldspar # Quartz # Topaz # Corundum # Diamond Has only 10 minerals in it. There are literally 100s if minerals to be found in the rocks that are not used in the scale but that can have their hardness related to the scale. e.g. graphite, galena, beryl, zircon etc.
What is the harness of phosphate on mohs harness scale?
Phosphate minerals do not have a specific hardness on Mohs scale because the hardness of a mineral is determined by its crystal structure and chemical composition. Each phosphate mineral can have a different hardness depending on its specific properties. However, some common phosphate minerals like apatite typically have a hardness of around 5 on the Mohs scale.
Can a fingernail scratch some minerals?
Yes. But only soft ones such as talc (solid form of chalk and baby powder). Generally only minerals below 2 on the hardness scale.
