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: 6
Number of measurements: 18
Max PZC read (of all measurements): 19.5
Min PZC read (of all measurements): 10.3
Max PZC average on one log: 18.5
Min PZC average on one log: 10.6
PZC Average of all logs: 14.6

Species: couratari spp.
Family: Lecythidaceae
Clade: Angiospermae
Description: Couratari are large, emergent rainforest trees (Lecythidaceae) known for their showy flowers and distinctive woody, lidded fruits that release winged seeds.
Other Local Names: Imbirema, Kakawalli, Wadara, Balata blanc, Couatari, Inguipipa, Maho cigare, Tabari, Ingipipa, Capa de tabaco, Tampipio

Reference Colour: Creamy white
Texture: Medium
Grain: Straight
Interlocked Grain: Absent
Notes: Wood cream white, pinkish white or yellowish grey white depending on the species. Unpleasant odour when green.

Diameter: 50÷80cm
Density @12% MC: 620kg/m³
Janka Hardness: 810lbf
Crushing Strength @12%MC: 48MPa
Static Bending Strength @12%MC: 87MPa
Longitudinal Modulus of Elasticity E: 14.5GPa
Volumetric Shrinkage Coefficient: 0.5% per %
Total Tangential Shrinkage TS: 7%
Total Radial Shrinkage TS: 4.5%
T/R Anisotropy Ratio: 1.6-
Fibre Saturation Point: 28%
Thermal Conductivity: 0.21W/mk
Lower Heating Value: 18780KJ/Kg
Sapwood Demarcation: Not demarcated

Resistance to Decay: Class 5 – non-durable
Resistance to Dry Wood Borers: Class S – susceptible (risk in all the wood) Atlas of Tropical Timber Species TAUARI Cross sections of Couratari multiflora
Resistance to Termites: Class S – susceptible
Treatability: Class 1 – treatable
Use Class Covered by Natural Durability: Class 1 – inside (no risk of dampness)
Durability Notes: Several species, with different natural durability, are grouped under the name Tauari. Some species and origins could be used without preservation treatment for end-uses under use class 2. However, commercial lots are usually constituted by different species. Consequently, it is advisable to use the less durable woods as a point of reference.

Log Buoyancy: Floats
Log Conservation: Low (treatment necessary)
Drying Rate: Rapid
Drying Risk of Distortion: No risk or very slight risk
Drying Risk of Case Hardening: No known specific risk
Drying Risk of Checking: No risk or very slight risk

Blunting Effect: High
Machining Tool: Tungsten carbide
Suitability for Peeling: Good
Suitability for Slicing: Good
Assembly Nailing Screwing: Good but pre-boring necessary
End Uses: Turned goods, Framing, Formwork, Boxes and crates, Stairs (inside), Veneer for back or face of plywood, Veneer for interior of plywood, Panelling, Glued Laminated, Interior joinery, Built-in furniture or mobile item, Moulding, Blockboard, Flooring, Sliced veneer, Seats

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