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: 10
Number of individual trees analyzed: 14
Number of specimens: 30
Number of measurements: 96
Max PZC read (of all measurements): 27.1
Min PZC read (of all measurements): 12.2
Max PZC average on one log: 24.4
Min PZC average on one log: 12.8
PZC Average of all logs: 18.6

Species: guibourtia demeusei
Family: Fabaceae
Clade: Angiospermae
Description: Guibourtia demeusei, commonly known as Bubinga or African Rosewood, is a large tropical hardwood tree native to Central and West Africa, prized for its dense, durable, reddish-brown heartwood with distinctive grain, widely used in fine furniture, flooring, and musical instruments.
Other Local Names: Essingang, Lianu, Akume, Ébana, Kévazingo, Ovèng, Waka

Reference Colour: Red brown
Texture: Medium
Grain: Straight or interlocked
Interlocked Grain: Slight
Notes: Wood pink or reddish brown, with some fine purplish red veins. Some brown veins. Sometimes wavy grain.

Diameter: 90÷150cm
Density @12% MC: 920kg/m³
Janka Hardness: 3060lbf
Crushing Strength @12%MC: 76MPa
Static Bending Strength @12%MC: 137MPa
Longitudinal Modulus of Elasticity E: 20.18GPa
Volumetric Shrinkage Coefficient: 0.62% per %
Total Tangential Shrinkage TS: 7.9%
Total Radial Shrinkage TS: 5.5%
T/R Anisotropy Ratio: 1.4-
Fibre Saturation Point: 24%
Thermal Conductivity: 0.3W/mk
Lower Heating Value: 19750KJ/Kg
Sapwood Thickness: 2÷8cm
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 4 – non-treatable Atlas of Tropical Timber Species
Use Class Covered by Natural Durability: Class 4 – in ground or fresh water contact
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: Moderate (treatment recommended)
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: Fairly high
Sawing Tooth: Stellite-tipped
Machining Tool: Tungsten carbide
Suitability for Peeling: Not recommended or without interest
Suitability for Slicing: Good
Sawing Machining Notes: Care is needed in presence of irregular grain. Very decorative veneers.
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.
End Uses: Turned goods, Interior joinery, Heavy carpentry, Built-in furniture or mobile item, Cabinetry (high-end furniture), Flooring, Stairs (inside), Sliced veneer, Vehicle or container flooring, Decking, Panelling, Seats, Exterior joinery, Sleepers

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