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: 9
Number of individual trees analyzed: 10
Number of specimens: 30
Number of measurements: 90
Max PZC read (of all measurements): 24.5
Min PZC read (of all measurements): 9.4
Max PZC average on one log: 19.3
Min PZC average on one log: 10.7
PZC Average of all logs: 14.5

Species: peltogyne spp.
Family: Fabaceae
Clade: Angiospermae
Description: Large tropical tree known for its distinctive, dense purple heartwood. It has alternate, pinnately compound leaves, small white flowers, and flat pod fruits.
Other Local Names: Violettholz, Guarabu, Ipe roxo, Jatobazinho, Pau violeta, Roxinho, Tananeo, Amaranth, Koroborelli, Merawayana, Purpleheart, Saka, Amarante, Bois violet, Palo de rosa, Palo morado, Nazanero, Dastan, Kocolorelli, Malako, Purperhart, Morado, Zapatero

Reference Colour: Purple
Texture: Medium
Grain: Straight
Interlocked Grain: Absent
Notes: Purple wood turns to dark brown with light. Possible presence of internal stresses.

Diameter: 50÷90cm
Density @12% MC: 870kg/m³
Janka Hardness: 2280lbf
Crushing Strength @12%MC: 80MPa
Static Bending Strength @12%MC: 141MPa
Longitudinal Modulus of Elasticity E: 21.25GPa
Volumetric Shrinkage Coefficient: 0.58% per %
Total Tangential Shrinkage TS: 6.7%
Total Radial Shrinkage TS: 4.4%
T/R Anisotropy Ratio: 1.5-
Fibre Saturation Point: 23%
Thermal Conductivity: 0.28W/mk
Lower Heating Value: 18120KJ/Kg
Sapwood Thickness: 5÷10cm
Sapwood Demarcation: Clearly demarcated

Resistance to Decay: Class 2-3 – durable to moderately 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
Durability Notes: This species is listed in the NF EN 350 standard. Resistance to decay varies from moderate to good. 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 to slow
Drying Risk of Distortion: Slight risk
Drying Risk of Case Hardening: No known specific risk
Drying Risk of Checking: Slight risk

Blunting Effect: Fairly high
Machining Tool: Tungsten carbide
Suitability for Peeling: Not recommended or without interest
Suitability for Slicing: Good
Sawing Machining Notes: Sawing and machining requires powerful equipment.
Assembly Nailing Screwing: Good but pre-boring necessary
Assembly Notes: Tends to split with nailing. High specific gravity: important that gluing be performed in compliance with the code of practice and instructions for the glue used.
Additional Notes: In the United States, Pao roxo is used to make deluxe coffins
End Uses: Turned goods, Glued Laminated, Coffins, Tool handles (resilient woods), Heavy carpentry, Exterior joinery, Ship building (planking and deck), Interior joinery, Ship building (ribs), Built-in furniture or mobile item, Cabinetry (high-end furniture), Flooring, Stairs (inside), Sliced veneer, Vehicle or container flooring, Exterior panelling, Musical instruments, Sculpture, Panelling, Marquetry

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