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: 6
Number of specimens: 11
Number of measurements: 39
Max PZC read (of all measurements): 22.9
Min PZC read (of all measurements): 12.5
Max PZC average on one log: 22.0
Min PZC average on one log: 15.3
PZC Average of all logs: 17.1

Species: erythrophleum micranthum
Family: Fabaceae
Clade: Angiospermae
Description: Erythrophleum micranthum is a medium to large toxic tree native to tropical Africa, belonging to the legume family (Fabaceae). It features compound leaves, small yellowish-white flowers, and pods, and is notably potent due to its alkaloid content.
Other Local Names: Élone, N’kassa, Alui, Éloun, Potrodom, Elondo, Mancone, Missanda, Erun, Sasswood, Kassa, Missanda, Missanda, Gogbei, Mwavi, Muave

Reference Colour: Brown
Texture: Coarse
Grain: Interlocked grain
Interlocked Grain: Marked

Diameter: 60÷90cm
Density @12% MC: 910kg/m³
Janka Hardness: 2760lbf
Crushing Strength @12%MC: 79MPa
Static Bending Strength @12%MC: 128MPa
Longitudinal Modulus of Elasticity E: 19.49GPa
Volumetric Shrinkage Coefficient: 0.57% per %
Total Tangential Shrinkage TS: 8.4%
Total Radial Shrinkage TS: 5.1%
T/R Anisotropy Ratio: 1.6-
Fibre Saturation Point: 26%
Thermal Conductivity: 0.29W/mk
Lower Heating Value: 18280KJ/Kg
Sapwood Thickness: 3÷6cm
Sapwood Demarcation: Clearly demarcated

Resistance to Decay: Class 1 – very 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
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: 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: Fairly high
Machining Tool: Tungsten carbide
Suitability for Peeling: Bad
Suitability for Slicing: Not recommended or without interest
Sawing Machining Notes: Sawing and machining requires powerful equipment. Some difficulties due to interlocked grain during planing.
Assembly Nailing Screwing: Good but pre-boring necessary
Assembly Notes: Avoid direct contact with nails, screws and other iron fasteners due to risks of local chemical degradation of wood and iron, combined with blackish stains. High specific gravity: important that gluing be performed in compliance with the code of practice and instructions for the glue used.
End Uses: Heavy carpentry, Bridges (parts in contact with water or, Vehicle or container flooring ground), Exterior joinery, Bridges (parts not in contact with water, or ground), Industrial or heavy flooring, Poles, Stakes, Hydraulic works (fresh water), Decking, Sleepers

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