Garnet group (Hindi)
Вставка
- Опубліковано 6 вер 2024
- We are back with another mineral group -- Garnet Group.
As per your demand we started a series on mineral groups in hindi.
In this video we will see the basic concept of Garnet group and its tricks.
-----------------------------------------------------------------------------------------------------------------------
Garnet Group
Crystal system - Cubic / Isometric
Silicate Structure - Nesosilicate
General Formula - X3Y2Si3O12
At X - Divalent ions (Ca2+, Mg2+, fe2+, Mn2+…etc)
At Y - Trivalent Ions (Al3+, Fe3+, Cr3+ & Ti3+)
Principal Minerals of Garnet group
Grossular Ca3Al2Si3O12
Pyrope Mg3Al2Si3O12
Almandine Fe3Al2Si3O12
Spessartine Mn3Al2Si3O12
Andradite Ca3Fe2Si3O12
Uvarovite Ca3Cr2Si3O12
Pyralspite Series
pyralspites (pyrope-almandine-spessartine)pyrope Mg3Al2Si3O12almandine Fe3Al2Si3O12spessartine Mn3Al2Si3O12
Al at Y place
Ugrandite Series
ugrandites (uvarovite-grossular-andradite)
grossular Ca3Al2Si3O12andradite Ca3Fe2Si3O12uvarovite Ca3Cr2Si3O12
Ca at X place.
Form - Dodecahedron / Trapezohedron / granular /Equant / Equigranular
Colour - Pale olive green, greenish white, yellow-pink (Gr), Deep crimson (Py), Deep red (Al), Dark brown
Cleavage - Absent
Streak - White
Fracture - conchoidal to uneven
Lustre - Vitreous
Hardness - 6-7.5
Sp gravity - 3.5-4.3
Varities
Cinnamon stone
Colophonite
Pyreneite
Melanite
Topazolite
Demantoid
Distinguishing Features
The high relief and isotropic or weakly birefringent nature of garnet ischaracteristic, with, in the birefringent varieties, zoning or sector twinning.
Minerals of this group generally are less strongly coloured in thin sectionthan the spinels, and lack the {111} cleavage sometimes seen in the latter.
Within the garnet group the various species are best distinguished by theirrefractive indices, specific gravities and cell edges, in conjunction, ifpossible, with partial chemical data, e.g. for FeO or MnO.
Hydrogrossular has a lower refractive index than any of the natural anhydrous garnets.
--------------------------------------------------------------------------------------------------------------------
QUARTZ - Academy
Exclusive coaching Institute for Earth Sciences
provide coaching related to all geology exam
IIT-JAM
GATE
Regular B.Sc
Regular M.Sc
All University Entrances
CSIR-UGC -NET
UGC- SET
-------------------------------------------------------------------------------------------------------------------------
Follow our team : Team Quartz
Mr. Nikhil V. Sherekar Sir (Founder of Quartz - Academy and Owner of Vidarbha Diamond Institute)
M.Sc Geology (University of Pune)
NET-CSIR (AIR-99)
UGC-JRF (AIR28)
SET
PET
GATE
COC
/ nikhil.shere. .
/ mikiback4u
ShivGeo, Amravati
email - nikhilsherekar@outlook.com
contact no - 8390377801
- Team QUARTZ -
Mayur Mararthe
Vipin Palaspagar
Mayur Bobade
Rushikesh Gudadhe
Tejas Tantarpale
Prachi Bais
Avinash Raut
Suyash Charthal
Ajinkya Wankhade
Adarsh malviya
Shivani Rajurkar
Rushikesh Jaisingpure
Rushabh Lanjewar
Rutuja Kharpe
Akshay wadatkar
Akansha Gawande
Abhishek Gupta
Achal Raut
Gayatri Lakade
Gopal Deokate
Gunjan Tale
Mrunal Ganorkar
Poonam Deshmukh
Vrutvik Malode
Abhishek Gudadhe
Sanket Vairade
Akshay Bhadande
Reenal Bhatkar
Om Shinde
Mahima Gadlinge
Dnyaneshwari Fendar
Atharv Nayab
Sakshi Lunge
Rutuja Gawai
Very good and helpful excellent presentation
Excellent ppt with excellent explanation
Class is very interesting,SIR...
Keep watching
Crystallography ka v video bnao n plz sirr
ua-cam.com/video/cUT9_ZzQ4TE/v-deo.html crystallography
I have 11 gram ruby specific gravity 3. 71 transparent colour.
What velu sir
Seriously sir aap bhut achha samjhate hai👌👌
Thanks for appreciation
Keep sharing, keep supporting
Team quartz
Aap s padhne k bad lagta h itna easy tha krkr
Very useful
Sir good job keep doing thank u 👏👏
Sir please upload other mineral groups🙏...apka padhane ka style 👏👏
Sure. Stay connected
We will be back soon with another mineral group as per your suggestion.
Till then keep sharing, keep supporting.
Thanks.
Team QUARTZ
@@Quartz-Academy thank u sir 😊
Please bring more videos on petrology
Kindly visit our website - www.quartzacademy.in for petrology courses.
Thanks
Team Quartz
Sir aap mahan ho thanks
Sir plz make more videos plz sir
Excellent presentation,,,, sir pls make video on sedimentary facies
Thanks for amazing video❤️
Hindi m geology vacuum tha thoda keep it continue
Thank you so much sir ❤️❤️
Thank you 🌹😊👌👍
Pls sir crystallography and structural geology complete video in hindi
Excellent sir
sir me quartz sonte supliery banna chata hu
Nice video sir
Crystallography in hindi
Please upload other minerals groups
Sericite which group of mineral
Sericite is a variety of Muscovite belongs to Mica group.
one verieties is allochrite
Uploaded others group mineral video
Kindly check mineral group Playlist for more videos.
Thanks
Team Quartz
Msc 1 sem 1 chi notes bhetnar kay sir
Sorry to say but Quartz Academy give only Entrance related coaching and material and not according to Semester.
Kindly mention your university / College name as each university has different semester subjects.
Thanks
Team Quartz
We won't more videos sir . thank you
Click on join button for more videos.