| Scapolite
is a silicate of Aluminum which
cyrstallizes in the tetragonal system
with prismatic habit. The crystals
are usually found in association
with metamorphic rocks. Yellow appears
to be the more common color for
this material. Faceted scapolite
can be especially difficult to differentiate
from quartz because many of the
gemological properties are the same.
Violet scapolites can easily be
heated to yellow. |
| Gemological
Information |
| Color
: |
White,
Yellow, Violet, Pink |
| Refractive
Index: |
1.54
- 1.577 |
| Chemical
Composition: |
Na4Al3Si9O24Cl
/CA4Al6Si6O24CO3 |
| Hardness: |
6 |
| Density: |
2.6-2.71 |
| Crystal
Group: |
Tetragonal |
| Ocurrence: |
Sri
Lanka, Kenya, Mozambique, Madagascar,
Burma, Brazil, Canada. |
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