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: 5
Number of individual trees analyzed: 6
Number of specimens: 15
Number of measurements: 48
Max PZC read (of all measurements): 27.8
Min PZC read (of all measurements): 13.3
Max PZC average on one log: 26.0
Min PZC average on one log: 16.3
PZC Average of all logs: 20.3

Species: carapa spp.
Family: Meliaceae
Clade: Angiospermae
Description: Carapa spp. are medium to large tropical trees (Meliaceae family) characterized by large, glossy pinnate leaves and distinctive woody, spherical fruits that split into four valves to release large, oily seeds.
Other Local Names: Andiroba branca, Andiroba vermelha, Andirobeira, Carapa, Nandiroba, Güino, Masabalo, Mazabalo, Cedro bateo, Cedro macho, Figueroa, Tangare, Crabwood, Carapa, Bastard mahogany, Cedro bateo, Krappa, Crappo, Carapa, Masabalo

Reference Colour: Red brown
Texture: Medium
Grain: Straight or interlocked
Interlocked Grain: Slight
Notes: Buoyancy is variable: Andiroba branca (varzea) floats. Andiroba vermelha (terra firme) does not float.

Diameter: 50÷80cm
Density @12% MC: 670kg/m³
Janka Hardness: 1050lbf
Crushing Strength @12%MC: 59MPa
Static Bending Strength @12%MC: 102MPa
Longitudinal Modulus of Elasticity E: 14.53GPa
Volumetric Shrinkage Coefficient: 0.55% per %
Total Tangential Shrinkage TS: 7.7%
Total Radial Shrinkage TS: 4.8%
T/R Anisotropy Ratio: 1.6-
Fibre Saturation Point: 27%
Thermal Conductivity: 0.22W/mk
Lower Heating Value: 18700KJ/Kg
Sapwood Thickness: 3÷5cm
Sapwood Demarcation: Not clearly demarcated

Resistance to Decay: Class 3-4 – moderately to poorly durable
Resistance to Dry Wood Borers: Class S – susceptible (risk in all the wood)
Resistance to Termites: Class M – moderately durable
Treatability: Class 3 – poorly treatable Atlas of Tropical Timber Species
Use Class Covered by Natural Durability: Class 2 – inside or under cover (dampness possible)
Durability Notes: This species is listed in the NF EN 350 standard.

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: High risk

Blunting Effect: Normal
Sawing Tooth: Ordinary or alloy steel
Machining Tool: Ordinary
Suitability for Peeling: Good
Suitability for Slicing: Good
Sawing Machining Notes: Some difficulties in planing in the presence of interlocked grain.
Assembly Nailing Screwing: Good but pre-boring necessary
Assembly Notes: Tends to split with nailing.
Additional Notes: This wood is often used as a substitute for Mahogany
End Uses: Turned goods, Shingles, Framing, Ship building (planking and deck), Cabinetry (high-end furniture), Boxes and crates (traditional gazebo, like structure), Stairs (inside), Veneer for back or face of plywood, Moulding, Panelling, Flooring, Glued Laminated, Sliced veneer, Exterior joinery, Exterior panelling, Interior joinery, Seats, Built-in furniture or mobile item

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