Chatoyance was measured by the chatometry.com team using the PZC method. The statistics for this specific timber are hereby summarized to provide an evaluation of data robustness:
Number of sources for samples: 9
Number of individual trees analyzed: 9
Number of specimens: 25
Number of measurements: 75
Max PZC read (of all measurements): 25.1
Min PZC read (of all measurements): 12.3
Max PZC average on one log: 24.2
Min PZC average on one log: 12.6
PZC Average of all logs: 20.0

Species: guibourtia ehie
Family: Fabaceae
Clade: Angiospermae
Description: A large tropical African tree, Guibourtia ehie is prized for its attractive, durable Ovangkol wood. It features pinnate leaves, small white flowers, and flat, winged seed pods.
Other Local Names: M’bagna, Mbagna, Amazakoué, Mozambique, Ovangkol, Anokye, Anokyé, Hyedua, Hyeduanini, Palissandro, Guibourtia, Kaluk afuon

Reference Colour: Yellow brown
Texture: Fine
Grain: Interlocked grain
Interlocked Grain: Slight

Diameter: 60÷75cm
Density @12% MC: 820kg/m³
Janka Hardness: 2250lbf
Crushing Strength @12%MC: 69MPa
Static Bending Strength @12%MC: 127MPa
Longitudinal Modulus of Elasticity E: 21.47GPa
Volumetric Shrinkage Coefficient: 0.57% per %
Total Tangential Shrinkage TS: 8%
Total Radial Shrinkage TS: 3.9%
T/R Anisotropy Ratio: 2.1-
Fibre Saturation Point: 24%
Thermal Conductivity: 0.27W/mk
Sapwood Thickness: 4÷7cm
Sapwood Demarcation: Clearly demarcated

Resistance to Decay: Class 2 – durable
Resistance to Dry Wood Borers: Class D – durable (sapwood demarcated, risk limited to sapwood)
Resistance to Termites: Class D – durable
Treatability: Class 3 – poorly treatable
Use Class Covered by Natural Durability: Class 4 – in ground or fresh water contact OVÈNGKOL
Durability Notes: This species is listed in the NF EN 350 standard. According to the European standard NF EN 335 of May 2013, performance length might be modified by conditions in which it is used.

Log Buoyancy: Does not float
Log Conservation: Good

Sawing Machining Notes: Some difficulties due to interlocked grain. Sometimes white efflorescence on sawnwoods; a wash with warm water can remove it.
Assembly Notes: High specific gravity: important that gluing be performed in compliance with the code of practice and instructions for the glue used.
Additional Notes: Resistant to one or several acids
End Uses: Turned goods, Interior joinery, Cabinetry (high-end furniture), Built-in furniture or mobile item, Stairs (inside), Flooring, Musical instruments, Sliced veneer, Panelling, Decking, Exterior joinery, Exterior panelling

Source 1: Tropical Timber Atlas, Editions Quae, e-ISBN 978-2-7592-2770-9