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: 5
Number of specimens: 9
Number of measurements: 27
Max PZC read (of all measurements): 28.3
Min PZC read (of all measurements): 12.5
Max PZC average on one log: 27.8
Min PZC average on one log: 13.5
PZC Average of all logs: 19.6

Species: bagassa guianensis
Family: Moraceae
Clade: Angiospermae
Description: Bagassa guianensis, also known as Cow Tree or Tatajuba, is a large South American tree prized for its durable, yellow timber and edible, milky, fig-like fruits.
Other Local Names: Amarelao, Bagaceira, Moral, Cow-wood, Fustic, Bagasse, Bois jaune, Kaw oudou, Odoun, Tatagva, Bagasse, Jawahedan, Kaw-oedoe, Mora amarillo

Reference Colour: Yellow brown
Texture: Medium
Grain: Interlocked grain
Interlocked Grain: Marked
Notes: When freshly cut, heartwood is yellow. It becomes yellow brown to dark brown with age.

Diameter: 50÷90cm
Density @12% MC: 800kg/m³
Janka Hardness: 1920lbf
Crushing Strength @12%MC: 78MPa
Static Bending Strength @12%MC: 109MPa
Longitudinal Modulus of Elasticity E: 21.49GPa
Volumetric Shrinkage Coefficient: 0.53% per %
Total Tangential Shrinkage TS: 5.2%
Total Radial Shrinkage TS: 3.7%
T/R Anisotropy Ratio: 1.4-
Fibre Saturation Point: 20%
Thermal Conductivity: 0.26W/mk
Lower Heating Value: 19180KJ/Kg
Sapwood Thickness: 2÷4cm
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 – poorly treatable
Use Class Covered by Natural Durability: Class 4 – in ground or fresh water contact Notes. This species is listed in the NF EN 350 standard. This species naturally covers the use class 5 (wood permanently or TATAJUBA
Durability Notes: This species is listed in the NF EN 350 standard. This species naturally covers the use class 5 (wood permanently or TATAJUBA Cross sections of Bagassa guianensis regularly submerged in salt water, sea water or brackish water) due to its high silica content. 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: Good
Drying Rate: Normal to slow
Drying Risk of Distortion: High 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: Sawdust is an irritant. Presence of internal stresses.
Assembly Nailing Screwing: Good but pre-boring necessary
Assembly Notes: High specific gravity: important that gluing be performed in compliance with the code of practice and instructions for the glue used.
Additional Notes: Interlocked grain may be troublesome in the use of this wood
End Uses: Turned goods, Moulding, Heavy carpentry, House framing, Ship building (planking and deck), Flooring, Shipbuilding (ribs), Sliced veneer, Cabinetry (high-end furniture), Decking, Stairs (inside), Bridges (parts in contact with water or, Vehicle or container flooring ground), Panelling, Bridges (parts not in contact with water, or ground), Exterior joinery, Exterior panelling, Interior joinery, Hydraulic works (fresh water), Built-in furniture or mobile item, Sleepers

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