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: 1
Number of individual trees analyzed: 1
Number of specimens: 2
Number of measurements: 6
Max PZC read (of all measurements): 11.9
Min PZC read (of all measurements): 9.6
Max PZC average on one log: 10.4
Min PZC average on one log: 10.4
PZC Average of all logs: 10.4

Species: sacoglottis gabonensis
Family: Humiriaceae
Clade: Angiospermae
Description: A medium-sized tree with alternate, leathery, obovate leaves. It produces small, yellowish-white flowers and distinctive, large, hard, woody, globose fruits, often ridged or warty, resembling a small cannonball, containing oily seeds.
Other Local Names: Bedwa, Bidou, Bodoua, Édoué, Éloué, Niuka, Akouapo, Tougbi, Essoua, Atala, Tala, Ugu, Kpowuli

Reference Colour: Red brown
Texture: Fine
Grain: Straight or interlocked
Interlocked Grain: Marked

Diameter: 60÷100cm
Density @12% MC: 890kg/m³
Janka Hardness: 2430lbf
Crushing Strength @12%MC: 84MPa
Static Bending Strength @12%MC: 138MPa
Longitudinal Modulus of Elasticity E: 21.77GPa
Volumetric Shrinkage Coefficient: 0.47% per %
Total Tangential Shrinkage TS: 9.1%
Total Radial Shrinkage TS: 5.5%
T/R Anisotropy Ratio: 1.7-
Fibre Saturation Point: 31%
Thermal Conductivity: 0.29W/mk
Lower Heating Value: 20010KJ/Kg
Sapwood Demarcation: Not demarcated

Resistance to Decay: Class 1 – very durable
Resistance to Dry Wood Borers: Class D – durable (heartwood durable but sapwood not clearly demarcated)
Resistance to Termites: Class D – durable
Treatability: Class 4 – non-treatable
Use Class Covered by Natural Durability: Class 4 – in ground or fresh water contact Notes. The possible presence of few demarcated sapwood may have an influence on the expected durability. According to OZOUGA
Durability Notes: The possible presence of few demarcated sapwood may have an influence on the expected durability. According to OZOUGA Cross sections of Sacoglottis gabonensis 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
Drying Rate: Slow
Drying Risk of Distortion: High risk
Drying Risk of Case Hardening: No known specific risk
Drying Risk of Checking: High risk

Blunting Effect: High
Machining Tool: Tungsten carbide
Suitability for Peeling: Not recommended or without interest
Suitability for Slicing: Not recommended or without interest
Assembly Nailing Screwing: Good but pre-boring necessary
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: Difficult to obtain good finish due to interlocked grain
End Uses: Heavy carpentry, Bridges (parts in contact with water or, Vehicle or container flooring ground), House framing, Bridges (parts not in contact with water, or ground), Flooring, Hydraulic works (fresh water), Industrial or heavy flooring, Sleepers, Poles

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