Difference between revisions of "Template:Chrysoberyl"

From The Gemology Project
Jump to: navigation, search
 
m
 
(One intermediate revision by one other user not shown)
Line 5: Line 5:
 
| Chemical composition || BeAl<sub>2</sub>O<sub>4</sub>
 
| Chemical composition || BeAl<sub>2</sub>O<sub>4</sub>
 
|-
 
|-
| Crystal system || orthorombic
+
| Crystal system || Orthorombic
 
|-
 
|-
| Habit || pseudo-hexagonal twins
+
| Habit || Pseudo-hexagonal twins
 
|-
 
|-
| Cleavage || wak to moderate
+
| Cleavage || Weak to moderate
 
|-
 
|-
| Fracture || conchoidal to uneven
+
| Fracture || Conchoidal to uneven
 
|-
 
|-
 
| Hardness || 8.5
 
| Hardness || 8.5
 
|-
 
|-
| Optic nature || biaxial +
+
| Optic nature || Biaxial +
 
|-
 
|-
| Refaction index || 1.74-1.75
+
| Refractive index || 1.74-1.75
 
|-  
 
|-  
 
| Birefringence || 0.009
 
| Birefringence || 0.009
 
|-
 
|-
| Dispersion || low, 0.014
+
| Dispersion || Low, 0.014
 
|-  
 
|-  
 
| Specific gravity || 3.72
 
| Specific gravity || 3.72
 
|-
 
|-
| Lustre || bright vitreous
+
| Lustre || Bright vitreous
 
|-
 
|-
| Pleochroism || moderate to strong
+
| Pleochroism || Moderate to strong
 
|}
 
|}

Latest revision as of 18:18, 22 December 2006

Chrysoberyl
Chemical composition BeAl2O4
Crystal system Orthorombic
Habit Pseudo-hexagonal twins
Cleavage Weak to moderate
Fracture Conchoidal to uneven
Hardness 8.5
Optic nature Biaxial +
Refractive index 1.74-1.75
Birefringence 0.009
Dispersion Low, 0.014
Specific gravity 3.72
Lustre Bright vitreous
Pleochroism Moderate to strong