Measurements: 42 x 15 x 15 mm
Description: A clear quartz crystal with small pumpellyllite balls inside and on its surface. When tilted in light, two small rainbows can be seen - one in its termination, and one around midway in its shaft.
The specimen has a few neat pressure marks and a flaw.
Weight
of Specimen: 14.1 g
Chemical
Composition: SiO2 (quartz)
Ca2MgAl2(Si2O7)(SiO4)(OH)2 ·
H2O
(pumpellyite)
Hardness on Mohs
Scale:
(quartz) 7
(pumpellyite) 5.5
- 6
Location:
Specimen
Code: NBB 200
US $ 18
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