sir in the exception model how is it exception? I mean to say that the one you are saying as basal pinacoid cant it be as macro pinacoid and it also satisfies the rule of "smaller axis is a axis"... please explain this..
if all the vertical faces will remain similar or will be of same size in orthorhombic prism of 1st order then it is exactly equal to tetragonal prism of 1st order? then what makes it different from that?
Tha size of orthorhombic is small and situated between pinacoid faces in orthorhombic system where as in tetragonal they are large in size and side by side. In both system axis relation is the major difference for their position.
Ahsan wani Thanks for watching video. In orthorhombic system total 8 vertical faces present but out of them 4 are identical or equal faces are called Prism 110 indices remaining 4 faces are forming 2 pairs of identical faces one pair which remain front and back are called front/ a pinacoid 100 indices where as remaining a 2 faces are smaller in size present on sides or along b axis is called side/ b / brachy pinacoid I request you kindly watch these forms in video and understand the holding position so that you can identify the forms which contain vertical faces in it. Let me know due you understand with my explaination.
In all systems axis always pass from centre. If axis from edge to edge then it is not belongs to principles of symmetry . In cubic all axes are equal and perpendicular thats why they have max planes and axis of symmetry. In cubic if you hold the model o0osite cormers,centre of faces or edges all imganary axis are equal in length passing from the centre and same orientation but in ortho if hold along such position the axis is not passing from the centre and their length is varies in all places thats why it is not considered as like cubic system. I hope you get your answer to it.
Crime Zone Thank you for your request. Tomarrow I will upload a video on micro paleontology then hard part morphology of lamellibranchia followed by ortho poda, Cephalopods, Brachiopods , Echinodermata, Then Triclinic system axinite type then mineralogy starts from basic. I hope you will enjoy and update your knowledge and learn the short cuts on it. Thanks. Arthopoda
sir when c axis intersects a face we call it as basal, but when an a axis intersects a face we call it as macro and when b intersects the face then brachy. why so? I mean we have named brachy when a is parallel and macro when b is parallel. then why the case of basal is different? cant we simply read that when a face intersects c then basal, intersects a then macro and when intersects b then brachy?
In case of c axis both horizontal axis are parallel to the face that’s why it is called basal pinacoid. Pinacoids are named based on which axis is parallel to the face.
I have been watching your video for 2 days
And I became a fan of you ❤️❤️
Thank you sir 🙏🎉🙏
Thanks.God is Great.
sir in the exception model how is it exception? I mean to say that the one you are saying as basal pinacoid cant it be as macro pinacoid and it also satisfies the rule of "smaller axis is a axis"... please explain this..
It was very helpful, thanks.
You are welcome
Nice lecture
It’s my pleasure. Thanks for visit.
if all the vertical faces will remain similar or will be of same size in orthorhombic prism of 1st order then it is exactly equal to tetragonal prism of 1st order? then what makes it different from that?
Tha size of orthorhombic is small and situated between pinacoid faces in orthorhombic system where as in tetragonal they are large in size and side by side.
In both system axis relation is the major difference for their position.
@@pcgeokimberlite2947 Thanks Sir. for a while I forgot about the crystallographic axes' length also matters. Thank you very much for the details...
@@pcgeokimberlite2947 56:37 of your video, clears all my doubts :) Thank you very much
Sir please do understand me how is it possible to have 8vertical faces in orthorhombic crystal system
Ahsan wani Thanks for watching video.
In orthorhombic system total 8 vertical faces present but out of them 4 are identical or equal faces are called Prism 110 indices remaining 4 faces are forming 2 pairs of identical faces one pair which remain front and back are called front/ a pinacoid 100 indices where as remaining a 2 faces are smaller in size present on sides or along b axis is called side/ b / brachy pinacoid
I request you kindly watch these forms in video and understand the holding position so that you can identify the forms which contain vertical faces in it.
Let me know due you understand with my explaination.
Sir in Orthorhombic system why the edge to edge and the corner to corner axis were not considered (like cubic system) ?
In all systems axis always pass from centre. If axis from edge to edge then it is not belongs to principles of symmetry .
In cubic all axes are equal and perpendicular thats why they have max planes and axis of symmetry. In cubic if you hold the model o0osite cormers,centre of faces or edges all imganary axis are equal in length passing from the centre and same orientation but in ortho if hold along such position the axis is not passing from the centre and their length is varies in all places thats why it is not considered as like cubic system.
I hope you get your answer to it.
@@pcgeokimberlite2947 yes sir 🙏
I got it 🙏
Thank you sir 🙏
Sir please upload mineralogy video
Mineral group
@@crimezone5050 sure I have to work on it and I will start preparation for it.
I accept your request Crime Zone.
Sir please upload more videos on geology
Crime Zone Thank you for your request. Tomarrow I will upload a video on micro paleontology then hard part morphology of lamellibranchia followed by ortho poda, Cephalopods,
Brachiopods ,
Echinodermata,
Then Triclinic system axinite type then mineralogy starts from basic.
I hope you will enjoy and update your knowledge and learn the short cuts on it.
Thanks.
Arthopoda
sir when c axis intersects a face we call it as basal, but when an a axis intersects a face we call it as macro and when b intersects the face then brachy. why so? I mean we have named brachy when a is parallel and macro when b is parallel. then why the case of basal is different? cant we simply read that when a face intersects c then basal, intersects a then macro and when intersects b then brachy?
In case of c axis both horizontal axis are parallel to the face that’s why it is called basal pinacoid.
Pinacoids are named based on which axis is parallel to the face.
@@pcgeokimberlite2947 Ohhh, noted. Thank you Sir..
Best
Thank You Dr Sanjay Joshi. It is a reward for me from my batchmate and colleague in senior college. Great.
Sound Quality to be Improve.Rest is ok
I will solve the problem in upcoming videos.
Sir I haven't 100% clarity about 1st order praim/pyramid and 2nd order prism/pyramid till now
Please make me understand it 🙏🙏🙏
Watch the video How to recognise the first and second order prim or pyramid a separate video was uploaded on the channel.
@@pcgeokimberlite2947 okay sir 🙏
❤❤
Shaurya Thank you for symbolic feedback.I like it 💐