Mouse
drag1 - LMB Manipulate Structure
drag2 - RMB Resize/Rotate Keyboard
S - Stereo Pair on/off
H - Help Screen
I - Data Info
A - Atoms On/Off
P - Polyhedra On/Off
B - Bonds On/Off
Help on Above
Galli E , Passaglia E , Tschermaks Mineralogische und Petrographische Mitteilungen , 25 (1978) p.33-46, Vertumnite: its crystal structure and relationship with natural and synthetic phases, Locality: Campomorto, Montalto di Castro
Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline).
Habit:
Pseudo Hexagonal - Crystals show a hexagonal outline.
Hardness:
5 - Apatite
Luster:
Vitreous (Glassy)
Streak:
white
Optical Properties of Vertumnite
Gladstone-Dale:
CI meas= -0.007 (Superior) - where the CI = (1-KPDmeas/KC) CI calc= 0.44 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1384,KPDmeas= 0.2491,KC= 0.2473 Ncalc = 1.53 - 1.96