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: 5
Number of individual trees analyzed: 5
Number of specimens: 11
Number of measurements: 36
Max PZC read (of all measurements): 22.3
Min PZC read (of all measurements): 17.5
Max PZC average on one log: 20.9
Min PZC average on one log: 18.7
PZC Average of all logs: 20.0

Species: guibourtia arnoldiana
Family: Fabaceae
Clade: Angiospermae
Description: A large, tropical African hardwood tree, known for its valuable, dense, reddish-brown wood. It features pinnate leaves, small white flowers, and flat, woody pods.
Other Local Names: M’penze, Benzi, Mbengé, Olive walnut

Reference Colour: Brown
Texture: Fine
Grain: Straight or interlocked
Interlocked Grain: Slight
Notes: Heartwood yellowish brown to brown presenting a dark striping or reddish glints.

Diameter: 40÷80cm
Density @12% MC: 790kg/m³
Janka Hardness: 1770lbf
Crushing Strength @12%MC: 79MPa
Static Bending Strength @12%MC: 138MPa
Longitudinal Modulus of Elasticity E: 21.25GPa
Volumetric Shrinkage Coefficient: 0.56% per %
Total Tangential Shrinkage TS: 8.8%
Total Radial Shrinkage TS: 5%
T/R Anisotropy Ratio: 1.8-
Fibre Saturation Point: 27%
Thermal Conductivity: 0.26W/mk
Lower Heating Value: 19940KJ/Kg
Sapwood Thickness: 5÷8cm
Sapwood Demarcation: Clearly demarcated

Resistance to Decay: Class 3 – moderately durable
Resistance to Dry Wood Borers: Class D – durable (sapwood demarcated, risk limited to sapwood)
Resistance to Termites: Class D-M – durable to moderately durable
Treatability: Class – 3-4 – poorly or not permeable
Use Class Covered by Natural Durability: Class 2 – inside or under cover (dampness possible) Notes. This species is listed in the NF EN 350 standard. MUTÉNYÉ
Durability Notes: This species is listed in the NF EN 350 standard. MUTÉNYÉ Cross sections of Guibourtia arnoldiana

Log Buoyancy: Does not float
Log Conservation: Moderate (treatment recommended)
Drying Rate: Slow
Drying Risk of Distortion: Slight risk
Drying Risk of Case Hardening: No known specific risk
Drying Risk of Checking: Slight risk

Blunting Effect: Fairly high
Machining Tool: Tungsten carbide
Suitability for Peeling: Not recommended or without interest
Suitability for Slicing: Good
Sawing Machining Notes: Some difficulties in planing due to interlocked grain.
Assembly Nailing Screwing: Good but pre-boring necessary
Additional Notes: Can be used as a substitute for Walnut (Juglans regia) for sliced veneer
End Uses: Turned goods, Built-in furniture or mobile item, Heavy carpentry, House framing, Cabinetry (high-end furniture), Flooring, Stairs (inside), Sliced veneer, Panelling, Seats, Interior joinery, Marquetry

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