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: 1
Number of individual trees analyzed: 1
Number of specimens: 2
Number of measurements: 6
Max PZC read (of all measurements): 23.5
Min PZC read (of all measurements): 21.8
Max PZC average on one log: 23.0
Min PZC average on one log: 23.0
PZC Average of all logs: 23.0

Species: cratoxylum arborescens, c. glaucum
Family: Hypericaceae
Clade: Angiospermae
Description: Cratoxylum arborescens: A large tree known for its showy pink flowers and large, often reddish young leaves. It typically has flaky bark. Cratoxylum glaucum: A medium-sized tree distinguished by its leaves, which are distinctly glaucous (bluish-white) on the underside, and its white to pale pink flowers.
Other Local Names: Gerunggang, Mapat, Mulu, Sulunus, Gonggang, Serungan

Reference Colour: Dark red
Texture: Coarse
Grain: Straight or interlocked
Interlocked Grain: Slight
Notes: Risk of splitting during felling (growth stress). Brittleheart. Wood red brown to dark red. Lustrous aspect.

Diameter: 80÷90cm
Density @12% MC: 450kg/m³
Janka Hardness: 360lbf
Crushing Strength @12%MC: 37MPa
Static Bending Strength @12%MC: 67MPa
Longitudinal Modulus of Elasticity E: 10.83GPa
Volumetric Shrinkage Coefficient: 0.44% per %
Total Tangential Shrinkage TS: 7.7%
Total Radial Shrinkage TS: 3.5%
T/R Anisotropy Ratio: 2.2-
Fibre Saturation Point: 31%
Thermal Conductivity: 0.16W/mk
Sapwood Thickness: 4÷6cm
Sapwood Demarcation: Clearly demarcated

Resistance to Decay: Class 5 – non-durable
Resistance to Dry Wood Borers: Class D – durable (sapwood demarcated, risk limited to sapwood)
Resistance to Termites: Class S – susceptible
Treatability: Class 1 – treatable
Use Class Covered by Natural Durability: Class 1 – inside (no risk of dampness) Atlas of Tropical Timber Species GERONGGANG

Log Buoyancy: Floats
Log Conservation: Moderate (treatment recommended)
Drying Rate: Rapid
Drying Risk of Distortion: Slight risk
Drying Risk of Case Hardening: No known specific risk
Drying Risk of Checking: Slight risk

Blunting Effect: Normal
Sawing Tooth: Ordinary or alloy steel
Machining Tool: Ordinary
Suitability for Peeling: Good
Suitability for Slicing: Not recommended or without interest
Sawing Machining Notes: Wood sometimes has a blunting effect. Surface of some woods rough due to irregular grain. Veneers tend to tear.
Assembly Nailing Screwing: Poor
End Uses: Boxes and crates, Built-in furniture or mobile item, Veneer for back or face of plywood, Moulding, Veneer for interior of plywood, Blockboard, Panelling, Fibre or particle boards, Interior joinery

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