Difference between revisions of "Template:Ametrine"
From The Gemology Project
Africanuck (talk | contribs) |
m |
||
(5 intermediate revisions by 2 users not shown) | |||
Line 3: | Line 3: | ||
! colspan=2 | Ametrine | ! colspan=2 | Ametrine | ||
|- | |- | ||
− | | Chemical composition || | + | | Chemical composition || Silicon dioxide SiO<sub>2</sub> |
|- | |- | ||
− | | Crystal system || | + | | Crystal system || Trigonal |
|- | |- | ||
− | | Habit || | + | | Habit || Prismatic |
|- | |- | ||
− | | Cleavage || | + | | Cleavage || Poor |
|- | |- | ||
− | | Fracture || | + | | Fracture || Conchoidal |
|- | |- | ||
− | | Hardness || | + | | Hardness || 7 |
|- | |- | ||
− | | Optic nature || | + | | Optic nature || Uniaxial + |
|- | |- | ||
− | | | + | | Refractive index || 1.544 - 1.553 |
|- | |- | ||
− | | Birefringence || | + | | Birefringence || 0.009 |
|- | |- | ||
− | | Dispersion || | + | | Dispersion || 0.013 |
|- | |- | ||
− | | Specific gravity || | + | | Specific gravity || 2.63 - 2.65 |
|- | |- | ||
− | | Lustre || | + | | Lustre || Vitreous |
− | |||
− | |||
|} | |} | ||
− | |||
− |
Latest revision as of 19:03, 21 December 2006
Ametrine | |
---|---|
Chemical composition | Silicon dioxide SiO2 |
Crystal system | Trigonal |
Habit | Prismatic |
Cleavage | Poor |
Fracture | Conchoidal |
Hardness | 7 |
Optic nature | Uniaxial + |
Refractive index | 1.544 - 1.553 |
Birefringence | 0.009 |
Dispersion | 0.013 |
Specific gravity | 2.63 - 2.65 |
Lustre | Vitreous |