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: 1
Number of individual trees analyzed: 3
Number of specimens: 6
Number of measurements: 18
Max PZC read (of all measurements): 14.1
Min PZC read (of all measurements): 9.9
Max PZC average on one log: 13.5
Min PZC average on one log: 11.1
PZC Average of all logs: 12.2

Species: celtis australis
Family: Cannabaceae
Clade: Angiospermae
Description: Celtis australis, the European nettle tree, is a medium-sized deciduous tree characterized by its smooth, grey, beech-like bark and rough, serrated, ovate leaves with an asymmetrical base. It produces small, dark purple, edible drupes in autumn.
Other Local Names: Bawe, Odou vrai, Édou, Kiliakamba, Celtis, Lohonfé, Engo, Esa-biri, Esa-kokoo, Esa-kosua, Shiunza, Lokonfi, Dunki, Ita, Ohia, Zuwo, Ekembe bakaswa, Namanuka, Balzé, Bolundé, Kayombo

Reference Colour: Yellow brown
Texture: Medium
Grain: Straight or interlocked
Interlocked Grain: Slight
Notes: Yellowish white with greenish veins in the innermost part of the logs. Particularly unpleasant odour when green or rewetted. Sometimes greenish discoloration in the innermost part of the logs.

Diameter: 70÷90cm
Density @12% MC: 720kg/m³
Janka Hardness: 1500lbf
Crushing Strength @12%MC: 59MPa
Static Bending Strength @12%MC: 111MPa
Longitudinal Modulus of Elasticity E: 16.2GPa
Volumetric Shrinkage Coefficient: 0.45% per %
Total Tangential Shrinkage TS: 7.4%
Total Radial Shrinkage TS: 4%
T/R Anisotropy Ratio: 1.9-
Fibre Saturation Point: 26%
Thermal Conductivity: 0.24W/mk
Lower Heating Value: 18920KJ/Kg
Sapwood Demarcation: Not clearly demarcated

Resistance to Decay: Class 5 – non-durable DIANIA Cross sections of Celtis adolfi-friderici
Resistance to Dry Wood Borers: Class S – susceptible (risk in all the wood)
Resistance to Termites: Class S – susceptible
Treatability: Class 1 – treatable
Use Class Covered by Natural Durability: Class 1 – inside (no risk of dampness)
Durability Notes: Very prone to blue stain.

Log Buoyancy: Floats
Log Conservation: Low (treatment necessary)
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: Good
Suitability for Slicing: Good
Sawing Machining Notes: Possible sawing and machining difficulties if there is interlocked grain. In this case, special tools are recommended. Sometimes, high silica content for Celtis tessmanii.
Assembly Nailing Screwing: Good but pre-boring necessary
Assembly Notes: Tends to split with nailing.
End Uses: Matches, Veneer for interior of plywood, Turned goods, Panelling, Heavy carpentry, Interior joinery, Formwork, Built-in furniture or mobile item, Boxes and crates, Moulding, Stairs (inside), Flooring, Veneer for back or face of plywood, Sliced veneer, Vehicle or container flooring

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