CALCITE CRYSTAL
Calcite crystal is colorless transparent most probably found in Iceland. So its name is Iceland spar. Chemically its name is calcium carbonate. It belongs to rohombohedral class of a hexagonal system. Hexagonal system is a combination of six parallelogram each become parallelogram with an angle 109 degree and 78 degree. then there are two opposite corner at which three axies are meet and makes an equal angle 109 degree
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Thnku sir ….very easy to understand
Thank you sir you made it so simple even a little child can understand
Sir your video is so helpful for this topic .can you please refer some reference books for polarisation of em waves included topics as nicol prism etc.
Thank u sir
Nice explanation sir
Hamare yahan ccalcite bohot hi
Thank you sir
toh sir optic axis paraller to surface kaise hoga
Thank You Sir
up to the point thank you sir
U are great sir.
Double refraction and retarder plate video jaldi banaia
Sir thank you..
Superbbbb explanation sir.
Aap jitna silently explain karte ho, dusra koi nahi kar sakta.
Keep it up sir
مارشل کے بنیادی مرکب میں کیل سائٹ شامل ہوتا ہے ۔۔۔۔
Primary composition of marble includes calcite…..
Calcite mere pas hai aur ye humare india me bahut hai mere yaha sir ji
Very informative sir .Keep it up