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: 4
Number of individual trees analyzed: 4
Number of specimens: 6
Number of measurements: 24
Max PZC read (of all measurements): 10.3
Min PZC read (of all measurements): 5.6
Max PZC average on one log: 9.5
Min PZC average on one log: 6.2
PZC Average of all logs: 7.9

Species: dalbergia melanoxylon
Family: Fabaceae
Clade: Angiospermae
Description: Dalbergia melanoxylon, or Siamese Rosewood, is a medium-sized deciduous tree native to Southeast Asia. It is critically endangered and highly prized for its exceptionally dense, dark, fragrant heartwood, used in luxury furniture and musical instruments. It features pinnate leaves and small, yellowish-white flowers.
Other Local Names: Ebbehout, Driedoring, Mokelete, Sebrahout, Swartdriedoring, Umbambangwe, Zebe, Zobbi, Kikwaju, Mpingo, Poyi, Farakalay, Ebène du Mozambique, Grenadille d’Afrique, Grenadille du Mozambique, Pau preto, Motangu, Kafundula, Dialambame, Ébène, Tabum, Chinsale, Kasalusalu, Mfwankomo, Mkelete, Mkumudwe, Msalu, Mukelete, Musonkomo, Murwiti, Pulupulu

Reference Colour: Black
Texture: Fine
Grain: Straight
Interlocked Grain: Absent
Notes: Light yellow sapwood. Heartwood dark purple-brown with black streaks. Typical rose scent.

Diameter: 30÷60cm
Density @12% MC: 1290kg/m³
Janka Hardness: 6630lbf
Crushing Strength @12%MC: 72MPa
Static Bending Strength @12%MC: 162MPa
Longitudinal Modulus of Elasticity E: 20.25GPa
Volumetric Shrinkage Coefficient: 0.36% per %
Total Tangential Shrinkage TS: 4.8%
Total Radial Shrinkage TS: 2.9%
T/R Anisotropy Ratio: 1.7-
Fibre Saturation Point: 25%
Thermal Conductivity: 0.4W/mk
Sapwood Thickness: 1÷2cm
Sapwood Demarcation: Clearly demarcated

Resistance to Decay: Class 1 – very durable
Resistance to Dry Wood Borers: Class D – durable (sapwood demarcated, risk limited to sapwood)
Resistance to Termites: Class D – durable
Treatability: Class – 3-4 – poorly or not permeable
Use Class Covered by Natural Durability: Class 4 – in ground or fresh water contact Atlas of Tropical Timber Species GRENADILLO
Durability Notes: This species naturally covers the use class 5 (end uses submerged in salt water, sea water or brackish water) due to its pronounced hardness. However this characteristic is of little interest for this precious species.

Log Buoyancy: Does not float
Log Conservation: Good
Drying Rate: Slow
Drying Risk of Distortion: No risk or very slight risk
Drying Risk of Case Hardening: No known specific risk
Drying Risk of Checking: High risk

Blunting Effect: High
Sawing Tooth: Stellite-tipped
Machining Tool: Tungsten carbide
Suitability for Peeling: Not recommended or without interest
Suitability for Slicing: Not recommended or without interest
Assembly Nailing Screwing: Good but pre-boring necessary
Assembly Notes: Very high specific gravity: very important that gluing be performed in compliance with the code of practice and instructions for the glue used.

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