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: 2
Number of individual trees analyzed: 2
Number of specimens: 5
Number of measurements: 15
Max PZC read (of all measurements): 19.9
Min PZC read (of all measurements): 13.9
Max PZC average on one log: 18.6
Min PZC average on one log: 15.0
PZC Average of all logs: 16.8

Species: petersianthus macrocarpus
Family: Lecythidaceae
Clade: Angiospermae
Description: Petersianthus macrocarpus, commonly known as Toog or Philippine Mahogany, is a large deciduous tree native to Southeast Asia. It features a tall, straight trunk, large simple leaves, and striking clusters of showy red to reddish-orange flowers resembling shaving brushes. Its fruit is a distinctive large, woody, winged capsule.
Other Local Names: Abing, Abalé, Minzu, Abale, Abin, Abing, Esia, Owewe, Nossoba, Bossoho, Wulo

Reference Colour: Red brown
Texture: Medium
Grain: Interlocked grain
Interlocked Grain: Marked

Diameter: 60÷100cm
Density @12% MC: 800kg/m³
Janka Hardness: 1200lbf
Crushing Strength @12%MC: 57MPa
Static Bending Strength @12%MC: 103MPa
Longitudinal Modulus of Elasticity E: 12.87GPa
Volumetric Shrinkage Coefficient: 0.53% per %
Total Tangential Shrinkage TS: 9.2%
Total Radial Shrinkage TS: 4.7%
T/R Anisotropy Ratio: 2-
Fibre Saturation Point: 36%
Thermal Conductivity: 0.26W/mk
Sapwood Thickness: 8÷10cm
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 M – moderately durable
Treatability: Class 3 – poorly treatable
Use Class Covered by Natural Durability: Class 2 – inside or under cover (dampness possible) Notes. Wide sapwood sensitive to insect attacks. ESSIA
Durability Notes: Wide sapwood sensitive to insect attacks. ESSIA Cross sections of Petersianthus macrocarpus

Log Buoyancy: Does not float
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: Normal
Sawing Tooth: Stellite-tipped
Machining Tool: Tungsten carbide
Suitability for Peeling: Bad
Suitability for Slicing: Good
Sawing Machining Notes: Machining more or less easy according to interlocked grain, especially in planing (tearing).
Assembly Nailing Screwing: Good but pre-boring necessary
Assembly Notes: Risks of splits with thin dimensions. High specific gravity: important that gluing be performed in compliance with the code of practice and instructions for the glue used.
Additional Notes: Mottled, striated, veined or moiré wood are in high demand for decorative sliced, veneer
End Uses: Heavy carpentry, Vehicle or container flooring, Sliced veneer

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