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: 3
Number of measurements: 15
Max PZC read (of all measurements): 18.4
Min PZC read (of all measurements): 9.9
Max PZC average on one log: 17.8
Min PZC average on one log: 10.5
PZC Average of all logs: 14.2

Species: dalbergia spruceana
Family: Fabaceae
Clade: Angiospermae
Description: Dalbergia spruceana is a medium to large Amazonian tree, prized for its rosewood timber. It features pinnately compound leaves, small whitish flowers in panicles, and flat, oblong seed pods.
Other Local Names: Jacaranda, Jacarandá do pará, Saboarana, Jacaranda preto, Rosewood, Para

Reference Colour: Pinkish brown
Texture: Coarse
Grain: Undulating
Interlocked Grain: Slight
Notes: Sapwood white to pale cream. Heartwood deep rouge or reddish-brown with black striping or mottling.

Diameter: 30÷50cm
Density @12% MC: 1040kg/m³
Janka Hardness: 4200lbf
Crushing Strength @12%MC: 97MPa
Static Bending Strength @12%MC: 183MPa
Longitudinal Modulus of Elasticity E: 26.15GPa
Volumetric Shrinkage Coefficient: 0.54% per %
Total Tangential Shrinkage TS: 8.2%
Total Radial Shrinkage TS: 3.2%
T/R Anisotropy Ratio: 2.6-
Fibre Saturation Point: 21%
Thermal Conductivity: 0.33W/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 4 – non-treatable
Use Class Covered by Natural Durability: Class 4 – in ground or fresh water contact Atlas of Tropical Timber Species ROSEWOOD, PARA

Log Buoyancy: Does not float
Log Conservation: Good
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
Machining Tool: Tungsten carbide
Suitability for Peeling: Not recommended or without interest
Suitability for Slicing: Good
Sawing Machining Notes: Good for turning.
Assembly Nailing Screwing: Good but pre-boring necessary
Assembly Notes: Very high specific gravity and extractive content: important that gluing be performed in compliance with the code of practice and instructions for the glue used.
Additional Notes: Top, market applications as with all Dalbergia species
End Uses: Turned goods, Flooring, Cabinetry (high-end furniture), Sliced veneer, Musical instruments, Sculpture, Tool handles (resilient woods), Marquetry

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