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Basalt scores an 8 on the Moh's scale. This makes it harder than quartz and vanadium, but weaker than boron and titanium carbide. It can easily scratch steel and glass. It is just about as hard as topaz. Basalt is also an igneous rock, formed by hardened lava, which explains why it is so hard.
Wiki User
∙ 10y ago
Wiki User
∙ 12y agoThe hardness of potassium feldspar on the Mohs Scale of Hardness is a 6. The hardness of plagioclase feldspar is also a 6.
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Can a fingernail scratch feldspar?
No on the mohs scale the fingermail is lower than feldspar. Source:Knowledge.
What scale is used to find a mineral's hardness?
the mohs hardness scale
What is topaz's number on the mohs scale?
Topaz is number 8 on the Mohs scale.
What is the most soft material in the mohs scale?
The softest material in the mohs scale is talc
How hard is a finger nail on the mohs hardness scale?
It is about 2.5 in the Mohs Hardness Scale.
A mineral with a hardness of 6?
Orthoclase feldspar is 6 on the Mohs scale of mineral hardness.
Can a fingernail scratch feldspar?
No on the mohs scale the fingermail is lower than feldspar. Source:Knowledge.
What mineral has hardness of 6?
Orthoclase feldspar is 6 on the Mohs scale of mineral hardness.
what is hardness of feldspar?
Feldspars generally have a hardness of 6 on Mohs' hardness scale.
Can talc scratch feldspar?
According to Mohs' Hardness Scale, talc registers at a 1, whilst feldspar registers at a 6, so, no, talc cannot scratch feldspar.
Is feldspar the hardest mineral next to a diamond?
No Feldspar is rated 6 on the Mohs Scale and diamond is rated 10. The mineral which is rated 9 on the Mohs is Corundum but there are other minerals which are harder that that but less harder than diamond.
What is fluorite on the mohs hardness scale?
Fluorite is the number 4 mineral on the Mohs scale of mineral hardness, above calcite and below apatite.
How hard is orthoclase feldspar?
On the Mohs Scale of mineral hardness, feldspar is 6 and quartz is 7, so quartz is harder. What does this mean? quartz will scratch feldspar, but feldspar will not scratch quartz.
What scale is used to find a mineral's hardness?
the mohs hardness scale
What is the scale called to measure hardness of gemstones?
The Mohs scale. # Talc # Gypsum # Calcite # Fluorite # Apatite # Feldspar # Quartz # Topaz # Corundum # Diamond The Mohs scale, however, is an purely ordinal scale. For example, corundum (9) is twice as hard as topaz (8), but diamond (10) is almost four times as hard as corundum. Check the related link for more info.
What is the hardness of feldspar?
Feldspars generally have a hardness of 6 on Mohs' hardness scale.
Is feldspar harder than calcite?
no,calcite is ranked number 3 on the mohs scale of hardness. topaz is ranked number 8 on mohs scale of hardness. 10 is the hardest(diamond) 1 is the softest(talc) look it up!
