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: 15
Number of individual trees analyzed: 15
Number of specimens: 46
Number of measurements: 138
Max PZC read (of all measurements): 28.6
Min PZC read (of all measurements): 14.0
Max PZC average on one log: 26.5
Min PZC average on one log: 15.8
PZC Average of all logs: 21.4

Species: milicia spp.
Family: Moraceae
Clade: Angiospermae
Description: Large, deciduous tropical African trees, highly valued for their durable, rot-resistant timber (Iroko). They typically feature buttress roots, simple alternate leaves, and produce small flowers followed by fleshy, multiple fruits.
Other Local Names: Moreira, Kambala, Lokotin, Abang, Kambala, Abang, Mandji, Odoum, Simmé

Reference Colour: Yellow brown
Texture: Coarse
Grain: Interlocked grain
Interlocked Grain: Slight
Notes: Yellow brown to more or less dark brown, with golden glints. Ribbon-like aspect on quartersawn, darker veins on slab. Possible presence of very hard white calcium carbonate deposits, sometimes surrounded by a darker colour.

Diameter: 80÷100cm
Density @12% MC: 640kg/m³
Janka Hardness: 1230lbf
Crushing Strength @12%MC: 54MPa
Static Bending Strength @12%MC: 87MPa
Longitudinal Modulus of Elasticity E: 12.84GPa
Volumetric Shrinkage Coefficient: 0.44% per %
Total Tangential Shrinkage TS: 5.4%
Total Radial Shrinkage TS: 3.5%
T/R Anisotropy Ratio: 1.5-
Fibre Saturation Point: 23%
Thermal Conductivity: 0.22W/mk
Lower Heating Value: 19900KJ/Kg
Sapwood Thickness: 5÷10cm
Sapwood Demarcation: Clearly demarcated

Resistance to Decay: Class 1-2 – very durable to 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 3 – not in ground contact, outside Atlas of Tropical Timber Species IROKO
Durability Notes: This species is listed in the NF EN 350 standard. This species naturally covers the use class 5 (wood permanently or regularly submerged in salt water, sea water or brackish water). Heartwood does not cover use class 4 required for end uses in contact with permanent humidity (example: contact with ground). On the other hand, this species can be used outside without any treatment if the construction is well-drained and does not have a water trap. 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: Normal
Drying Risk of Distortion: Slight risk
Drying Risk of Case Hardening: No known specific risk
Drying Risk of Checking: No risk or very slight risk

Blunting Effect: Fairly high
Sawing Tooth: Stellite-tipped
Machining Tool: Tungsten carbide
Suitability for Peeling: Good
Suitability for Slicing: Good
Sawing Machining Notes: Calcium carbonate deposits in some logs severely damage tools. Very irritant sawdust. Risk of tearing (interlocked grain).
Assembly Nailing Screwing: Good
Additional Notes: Filling is recommended. Wood sometimes resistant to wood finish product. Iroko, contains a non, saturated phenolic compound: chlorophorin, a powerful anti, oxidant. Paints, or varnishes free of siccative oil are therefore used for finishing. These synthetic, resin, based, paints and varnishes (such as vynilic paints and polyurethane varnishes) can also be used as, an undercoat
End Uses: Turned goods, Exterior joinery, Framing, Interior joinery, Ship building (planking and deck), Built-in furniture or mobile item, Cabinetry (high-end furniture), Flooring, Stairs (inside), Sliced veneer, Veneer for back or face of plywood, Decking, Vehicle or container flooring, Bridges (parts not in contact with water, Veneer for interior of plywood or ground), Panelling, Cooperage, Glued Laminated

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