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Which minerals can be scratched by fluorite?

Last Updated: 25th June, 2020

It can be scratched by topaz, corundum,anddiamond. Quartz will scratch minerals thathavea lower number on the scale. Fluorite isone.

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In this manner, what mineral can be scratched with a fingernail?

The Mohs Hardness Scale ranks the order of hardnessofminerals and some common objects. For example,yourfingernail can scratch the minerals talc andgypsum,with a hardness of 2 or lower. A copper penny canscratchcalcite, gypsum, and talc.

which minerals on the Mohs scale will scratch apatite? Minerals

Mohs hardness Mineral Absolute hardness
3 Calcite 14
4 Fluorite 21
5 Apatite 48
6 Orthoclase feldspar 72

Additionally, can fluorite be scratched by a penny?

Since Fluorite is a 4 on the scale it meansthatfluorite can scratch all the minerals below it but notbescratched by them. Also if a penny can scratchamineral it rates a 3, a fingernail is 2.5, knife blade 5.5,glass5.5 and steel file 6.5.

What mineral Cannot be scratched?

Mineral Hardness
INTERMEDIATE Mineral cannot be scratched with a fingernailbutcan be scratched with a steel nail.
SOFT Mineral can be scratched with a fingernail

Related Question Answers

Desiderio Puliyur


Can quartz be scratched by a knife?

Soft - can be scratched by afingernail,Mohs' 1-2; Medium - can be scratched by aknife ornail, Mohs' 3-5; Hard - cannot be scratched by aknife butcan scratch glass, Mohs' 6-9; A relativehardness value of6.5 means that the mineral could scratchorthoclase(feldspar) but not quartz.

Catinca Bescansa


What mineral can be scratched by every other mineral?

Mohs invented a scale of hardness based on howonemineral scratched another. Rocks are made up of one ormoreminerals. According to the scale, Talc is the softest:itcan be scratched by all other materials. Gypsum isharder:it can scratch talc but not calcite, which isevenharder.

Izeia Schmiedberger


Takeshi Enzil


What minerals will scratch glass?

Proceeding with the glass plate, the mineralisunable to scratch the glass (hardness = 5.5) atall.This mineral is about 4.0 on the Mohs scale.

The Mohs Scale is shown below, using commonly known mineralstorepresent each degree of hardness:
  • Talc.
  • Gypsum.
  • Calcite.
  • Fluorite.
  • Apatite.
  • Feldspar.
  • Quartz.
  • Topaz.

Imogene Marquijana


Can Silver scratch glass?

Things That Scratch Glass
Anything harder than glass can scratchit.Hardened steel, such as a file, can scratch glass.Titanium,chromium and even sapphires or rubies can scratchglass,while aluminum or a butter knife blade maynot.

Somaya Ajuda


What is the hardest rock on earth?

Diamond was once thought to be the hardest andthemost incompressible material on earth, either naturalorman-made. Although diamond is still considered thehardest,the bulk modulus of the metal osmium has recentlybeen found to be476 GPa.

Loubna Secall


Can quartz be scratched?

Quartz does not scratch.
Quartz is almost indestructible andhasimpressive flexural strength compared to natural stonecountertops.Quartz is highly scratch resistant, butit canand does scratch. Tight-grained, dark, solidcolors areespecially susceptible and scratches are difficulttofix.

Edit Mehnke


Do diamonds get scratched?

Diamonds are almost completelyscratchproof and are one of the gemstones able to withstandabuse fromjust about every other material – with theexception ofanother diamond of course. The reason for thissuperstrength is that diamonds top the scale ofgemstonehardness.

Jarvis Volcik


Which mineral is harder topaz or quartz?

Quartz has a hardness of 7 on the MOHSscale,while Topaz is an 8. That means that Topazwillscratch Quartz. You can try and scratch one of thegemstoneswith the other and which ever one is scratched willbeQuartz.

Ahcene Pabon


Is glass harder than talc?

On the Mohs scale, fingernail has hardness 2.5;copperpenny, about 3.5; a knife blade, 5.5; window glass,6.5;steel file, 6.5. If it is scratched then the rock you'retesting ishardness 1. If not then try to scratch theTalc withyour rock. If the rock scratches the Talcthen it isharder than the Talc.

Darren Korbes


Can halite scratch glass?

Halite is also much softer than glassandcan be easily scratched using a nail ormetalsurface. If any doubt remains, halite is one of thefewcommon minerals that, when broken into small fragments,willreadily dissolve in water.

Maurice Lahsen


Can Topaz be scratched?

These enhanced Topaz pieces must be handledwithspecial care because the coating can be scratchedandthe gem ruined very easily. Topaz itself is a hardgemstonewith a Mohs hardness of 8. Mohs hardness is a standardizedmetricof how difficult it is to scratchsomething.

Lucretia Dodenhoft


What minerals are harder than glass?

Fluorite Non-metallic (purple, green, yellow) Softer than glass
Calcite Non-metallic Softer than glass
Halite Non-metallic Softer than glass
Gypsum Non-metallic Softer than glass and softer than a fingernail

Aurelien Realpe


Can cardboard scratch glass?

Cardboard is full of contaminantsincludingglass, dirt and rocks; even surface dirt on thecardboardcould cause scratching.

Alexandr Curralo


What color streak will hematite always give you?

Some specimens of hematite will produce a brilliantredstreak, others will produce a reddish brown streak. Careisneeded when testing a specimen of hematite with ametallicluster.

Auxiliadora Higino


How do halite deposits form?

Halite is mainly a sedimentary mineralthatusually forms in arid climates where ocean waterevaporates.Over geologic time, several enormous saltdeposits have beenformed when repeated episodes ofseawater evaporationoccurred in restricted basins. Some of thesedeposits arethousands of feet thick.

Saim Keuffel


What is the transparency of mica?

Thin sheets are transparent or, if deeplycolored,translucent. Micas are stable when exposed toelectricity,light, moisture and extreme temperatures. Manufacturedmicaincludes built-up mica, glass-bondedmica, groundmica, phosphate-bonded mica andreconstitutedmica.

Siaka Schultebraucks


Lyuba Arnal


Is there a mineral harder than diamond?

Scientists have calculated that wurtzite boronnitrideand lonsdaleite (hexagonal diamond) both havegreaterindentation strengths than diamond. Source:EnglishWikipedia. ( -- Currently, diamond isregardedto be the hardest known material in theworld.