Understanding Tectosilicates
Welcome to our comprehensive guide on Tectosilicates. Lecture on structure of SiO2 polymorphs, opal, feldspathoids, feldspars and zeolites, followed by rock classification discussion.
Key Takeaways about Tectosilicates
- In the previous tutorial we learned about some types of silicates, so now let's learn about the rest. That will be inosilicates, ...
- Following Strunz's classification of silicates, along with tectosilicates, are quartz, feldspar, and feldspathoids. Silicates ...
- Luster - Vitreous Streak - white Hardness - 7 Density - moderatley low Cleavage - none Color - variable, usually pale colors ...
- Tectosilicates
- Luster - vitreous Streak - white Hardness - 6-6.5 Density - moderately low density Cleavage - two planes @ 90 degrees Color ...
Detailed Analysis of Tectosilicates
Oxygen, silicon, and aluminium are the most abundant elements in the surface of the earth; more than 80% of the atoms in the ... Intro ... Luster - vitreous Streak - white Hardness - 5-6 Density - low density Cleavage - none Color - variable Crystal system - amorphous ...
Unlike quartz there are no rainbow colours under cross polarised light. Almost no relief. Garnet and zircon are similar but ...
In summary, understanding Tectosilicates gives us a better perspective.