The Way Home

by Arya Akhavan (February 2013)
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Gemology Projectopen
L/W
100%
Design RI
1.55
H/W
59%
Gear
80
V/W³
0.176
Symmetry
5 (mirrored)
Facets
61
Tiers
9
Crown
31
Pavilion
15

I've been trying to write pentagons for my Tessellation suite. There's no such thing as a tessellation of pentagons in Euclidian space, but with two types of rhombi you can get pretty close (this one doesn't count). Works in materials from petalite to rutile (RI = 1.50 - 2.62) with no changes, but I prefer it in labradorite. Suggested size = 5-8 mm

Wireframe

The Way Home 3D view
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Pavilion

#AngleFacetsNotes
G190.00°
 824405672
Set stone size.
G290.00°
 5112127374353596975
Level girdle.
P143.91°
 824405672
Cut to centerpoint.
P243.32°
 5112127374353596975
Meet at culet.

Crown

#AngleFacetsNotes
C123.66°
 824405672
Set girdle width.
C221.59°
 5112127374353596975
Level girdle.
C319.88°
 5112127374353596975
Meet C1, C2
C412.86°
8016324864
Meet C2, C3
T0.00°
20
Meet C3, C4