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: 6
Number of individual trees analyzed: 6
Number of specimens: 14
Number of measurements: 45
Max PZC read (of all measurements): 11.8
Min PZC read (of all measurements): 6.4
Max PZC average on one log: 11.1
Min PZC average on one log: 7.0
PZC Average of all logs: 9.3

Species: amphimas spp.
Family: Malvaceae
Clade: Angiospermae
Description: Large, emergent rainforest trees with straight, cylindrical trunks, often buttressed, pinnate leaves, and distinctive winged pods.
Other Local Names: Edzil, Edjin, Muizi, Edzui, Yaya, Bokanga

Reference Colour: Yellow brown
Texture: Coarse
Grain: Straight
Interlocked Grain: Absent
Notes: Cream white to yellow brown. The presence of parenchyma bands at regular intervals give an aesthetic aspect to sawnwoods.

Diameter: 80÷100cm
Density @12% MC: 820kg/m³
Janka Hardness: 1740lbf
Crushing Strength @12%MC: 73MPa
Static Bending Strength @12%MC: 128MPa
Longitudinal Modulus of Elasticity E: 16.83GPa
Volumetric Shrinkage Coefficient: 0.69% per %
Total Tangential Shrinkage TS: 10.8%
Total Radial Shrinkage TS: 6.4%
T/R Anisotropy Ratio: 1.7-
Fibre Saturation Point: 30%
Thermal Conductivity: 0.27W/mk
Lower Heating Value: 19580KJ/Kg
Sapwood Thickness: 5÷8cm
Sapwood Demarcation: Not clearly demarcated

Resistance to Decay: Class 3 – moderately durable
Resistance to Dry Wood Borers: Class S – susceptible (risk in all the wood)
Resistance to Termites: Class M – moderately durable
Treatability: Class 4 – non-treatable Atlas of Tropical Timber Species
Use Class Covered by Natural Durability: Class 2 – inside or under cover (dampness possible)
Durability Notes: This species is listed in the NF EN 350 standard. Prone to blue stain.

Log Buoyancy: Does not float
Log Conservation: Low (treatment necessary)
Drying Rate: Slow
Drying Risk of Distortion: High risk
Drying Risk of Case Hardening: Yes
Drying Risk of Checking: High risk

Blunting Effect: Normal
Sawing Tooth: Ordinary or alloy steel
Machining Tool: Ordinary
Suitability for Peeling: Not recommended or without interest
Suitability for Slicing: Good
Sawing Machining Notes: Sawing may require power. Grain tearing in machining.
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: Aspect quite similar to Eyong (Eribroma obloma)
End Uses: Boxes and crates, Panelling, Interior joinery, Built-in furniture or mobile item, Moulding, House framing, Flooring, Sliced veneer

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