Galena
Orthoclase Feldspar.
In a hand sample/specimen you can the properties used to identify minerals are luster, diaphaneity, color, streak, luminescence, play of colors, crystal shape, tenacity, cleavage, hardness, specific gravity and density, magnetism, electrical properties, reaction to acid.
yes, minerals can only be scratched by other minerals with hardness equal or greater. thus this explains why a diamond can be cut and "polished" by dust or smaller diamonds
1.Color 2.Streak 3.Luster 4.Fluorescence 5.Chemical 6.Composition 7.Hardness 8.density 9.fracture 10.cleavage 11.crystal form
Answer 1Mohs Hardness Scale is a comparative way of measuring the hardness of a rock or mineral - that is, its resistance to scratching. It is usually used with minerals because rocks tend to have a heterogeneous consistency and therefore varying degrees of hardness.The Mohs scale goes from 1 to 10, with one being the softest mineral and ten being the hardest. There are minerals that are considered "indicators" and are known to have a specific, constant hardness value. These indicator minerals, with their hardness values, are:Talc: 1 (softest)Gypsum: 2Calcite: 3Fluorite: 4Apatite: 5Feldspar: 6Quartz: 7Topaz: 8Corundum: 9Diamond: 10 (hardest)A set of common objects with known hardness values is often used to estimate the hardness of an unknown sample, by attempting to scratch it. The average human fingernail has a hardness of 2.5 and a copper penny has a hardness of 3.5. A stainless steel blade is about 6.5 and a section of average window glass is approximately 5.5._______________________________________________________Answer 2The Mohs scale of mineral hardness is based on the ability of one natural sample of matter to scratch another mineral. The samples of matter used by Mohs are all different minerals. Minerals are pure substances found in nature.1 = talcum, softest10= diamond, hardestFurther reading via 'Related links'A Mohs hardness scale is a graph. This graph shows information on the body and the hardness.
Orthoclase Feldspar.
Orthoclase feldspar is 6 on the Mohs scale of mineral hardness.
Streak. The 6 properties of minerals are streak, hardness, crystal form, color, cleavage/fracture, and luster. Hope that can answer your question:)
Lustre Colour Cleavage Hardness Streak Crystal Habit Specific Gravity Magnetism Effervescence Double Refraction Taste Feel
Orthoclase feldspar is 6 on the Mohs scale of mineral hardness.
the hardness scale for the mineral hornblende is 5-6.
A mineral with a hardness of 6 on the Mohs scale can be scratched by anything harder than a 6, such as minerals with a hardness of 7 or higher. It will not be scratched by minerals with a hardness of 5 or lower.
6
The hardness of glass is around 6, and the hardness of iron is about 5. So your mineral is probably around a 5.5.
In a hand sample/specimen you can the properties used to identify minerals are luster, diaphaneity, color, streak, luminescence, play of colors, crystal shape, tenacity, cleavage, hardness, specific gravity and density, magnetism, electrical properties, reaction to acid.
the cleavage for pyrite is cubic
A pearl is composed of the mineral aragonite which has a hardness of 3.5-4.0.