|
|
|
|
|
|
|
|
||
|
|
|||
|
|
|||
|
|
|
Name: |
willemite |
|
|||
|
Class: |
Silicates |
||||
|
Chemistry: |
Zn2SiO4 Zinc Silicate |
||||
|
Color(s): |
colorless, brown, yellow-green, reddish, black, Streak: white |
||||
|
Hardness: |
5.5 |
SpecGrav: |
3.9 - 4.2 |
||
|
Fracture: |
uneven to conchoidal |
Cleavage: |
good 3 directions |
||
|
Crystal: |
Hexagonal (short prismatic or rhombohedral) |
||||
|
Envronment: |
hydrothermal replacement deposits |
||||
|
Association: |
calcite, zincite, franklinite, rhodonite, hemimorphite |
||||
|
Locals: |
| Zambia | Greenland | New Jersey,New Mexico/USA | Mexico | |
||||
|
Misc: |
Named for the Willem I, king of Netherlands. It fluoresces a bright yellow-green |
||||
|
Photos |
|||||
|
|
|
|
|
|
|
|
|
|
