0
What else can I help you with?
What minerals can be scratched by a knife?
Minerals that can be scratched by a knife typically have a Mohs hardness of less than 5.5. Common examples include talc, gypsum, and calcite, which are softer minerals. A knife, generally made of hardened steel, can scratch these softer minerals, while harder minerals like quartz or diamond cannot be scratched by a knife.
What two minerals are colorless and have a colorless streak?
Diamond and quartz are colorless minerals that also have a colorless streak. This means that when these minerals are scratched against a white ceramic plate, they leave behind a streak that is also colorless.
What mineral has no clevage and cannot be scratched with a steel file?
The mineral that has no cleavage and cannot be scratched with a steel file is typically quartz. Quartz is known for its hardness, ranking 7 on the Mohs scale, which means it can only be scratched by harder materials. Its lack of cleavage results in conchoidal fractures, giving it a distinctive break pattern. Other minerals with similar characteristics may include certain varieties of garnet or tourmaline, but quartz is the most commonly referenced.
Is 7on MOHs hardness scale strong?
Yes, 7 on the Mohs hardness scale is considered strong. It indicates that the mineral can scratch minerals with a lower number but can be scratched by minerals with a higher number. Minerals like quartz and topaz have a hardness of 7 on the Mohs scale.
Which o the following minerals can you scratch with a knife blade but not wit a copper coin?
Minerals that can be scratched with a knife blade but not with a copper coin typically have a hardness between 3.5 and 5 on the Mohs scale. For instance, minerals like calcite (hardness 3) can be scratched by a copper coin but not by a knife blade, while minerals like fluorite (hardness 4) can be scratched by a knife but not by a copper coin. Therefore, minerals like fluorite would fit your criteria.
Which minerals on Mohs' hardness scale can be scratched by quartz?
Othoclase, apatite, fluorite, calcite, gypsum, and talc.
What minerals can be scratched by a knife?
Minerals that can be scratched by a knife typically have a Mohs hardness of less than 5.5. Common examples include talc, gypsum, and calcite, which are softer minerals. A knife, generally made of hardened steel, can scratch these softer minerals, while harder minerals like quartz or diamond cannot be scratched by a knife.
What two minerals are colorless and have a colorless streak?
Diamond and quartz are colorless minerals that also have a colorless streak. This means that when these minerals are scratched against a white ceramic plate, they leave behind a streak that is also colorless.
What are some minerals that have quartz in them?
Quartz is a mineral. No other minerals contain quartz.
What is the hardness of dolomite?
The hardness of dolomite ranges from 3.5 to 4 on the Mohs scale. It is softer than most other minerals and can easily be scratched by harder minerals such as quartz or topaz.
Can apatite be scratched by quartz?
Quartz is harder than apatite, quartz being a 7 on the Mohs mineral hardness scale and apatite being a 5.
What mineral has no clevage and cannot be scratched with a steel file?
The mineral that has no cleavage and cannot be scratched with a steel file is typically quartz. Quartz is known for its hardness, ranking 7 on the Mohs scale, which means it can only be scratched by harder materials. Its lack of cleavage results in conchoidal fractures, giving it a distinctive break pattern. Other minerals with similar characteristics may include certain varieties of garnet or tourmaline, but quartz is the most commonly referenced.
Which of the following minerals is most resistant to being scratched?
Diamond is the most resistant to being scratched as it is the hardest mineral on the Mohs scale with a rating of 10.
Is a granite a rock or a mineral?
Granite is an igneous rock. It is commonly formed from the following minerals. Quartz, potassium and Plagioclase Feldspars and Biotite Mica.
What are 2 minerals that can be scratched by a fingernail?
Quartz (Mohs 7.0) and diamond (Mohs 10,0) are two of many minerals that are harder than copper (Mohs 2.5-3.0).
Can barite scratch other rocks or minerals?
Yes, barite is a relatively soft mineral with a Mohs hardness of 3-3.5, so it can be easily scratched by harder minerals. It is unlikely to scratch most common minerals or rocks, but can be scratched by harder minerals such as quartz or topaz.
Is 7on MOHs hardness scale strong?
Yes, 7 on the Mohs hardness scale is considered strong. It indicates that the mineral can scratch minerals with a lower number but can be scratched by minerals with a higher number. Minerals like quartz and topaz have a hardness of 7 on the Mohs scale.
