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What are two minerals with cleavage?

Answer

All minerals have cleavage, but the quality of that cleavage varies considerably from perfect through imperfect to poor. With glassy materials, the cleavage may be conchoidal. Examples of minerals with perfect cleavage are calcite, biotite and mica.
Q&A Related to "What are two minerals with cleavage?"
The clevage modulus elasticity of beryllium is approximately 50%
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I can list several: calcite, fluorite, topaz, gypsum, halite, all the feldspars, galena, sphalerite, rhodochrosite, celestite, and many others. Hope this answers your question. Source
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I believe that means how it breaks. Some break in crystals, some in slivers, some in sheets.
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Explore this Topic
Cleavage may be defined as how a crystal breaks when the pressure is applied on the mineral on a particular area, if the crystal maintains a smooth area it implies ...
Mineral cleavage refers to how a crystal breaks when it is subject to stress on a particular plane. The broken piece which retains a smooth plane or crystal shape ...
Cleavage is related to fracture in that they both described how a mineral will break when it is under stress. Cleavage refers to when a mineral breaks along its ...
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