Skip to content

PZC Chatometry

A standard system to measure wood chatoyance

Menu
  • Home
  • What is Chatoyance?
    • Curl
    • Ribbon Stripe
    • Other Figures
    • Flecks
    • Growth Rings
    • Knots
  • The PZC method
    • Scale example 1
    • Scale example 2
    • Scale example 3
    • Scale example 4
  • Woods
    • Summary Table
    • Africa
      • Abura
      • Afrormosia
      • Agba
      • Agba
      • Afzelia
      • Aniegre
      • Avodire
      • Azobe
      • Bilinga
      • Bilinga
      • Bomanga
      • Boire
      • Bubinga
      • Cola
      • Ebiara
      • Ebony, Gaboon
      • Etimoe
      • Faro
      • Faro
      • Framire
      • Guarea
      • Iroko
      • Lati
      • Khaya
      • Kosipo
      • Kotibe
      • Kotibe
      • Koto
      • Limba
      • Limba, Black
      • Makore
      • Mansonia
      • Moabi
      • Movingui
      • Niangon
      • Niove
      • Obeche
      • Ocotea
      • Ocotea
      • Ovangkol
      • Okoume
      • Padouk
      • Purpleheart
      • Ramin
      • Rosewood, African Blackwood
      • Rosewood, African Blackwood
      • Rosewood, Madagascar
      • Sapele
      • Sipo
      • Tali
      • Tiama
      • Wenge
      • Walnut, African
      • Zebrawood
    • Asia
      • Acacia, unspecified
      • Ailanthus
      • Albizia, unspecified
      • Alstonia
      • Artocarpus
      • Ash, Tamo
      • Bintangor
      • Bamboo
      • Camphor
      • Coconut
      • Ebony, Black and White
      • Ebony, Macassar
      • Fig, misc.
      • Kapur
      • Keruing
      • Mango
      • Meranti
      • Merbau
      • Mersawa
      • Narra
      • Paulownia
      • Rosewood, Indian
      • Satinwood
      • Sen
      • Sucupira
      • Teak
    • Europe
      • Alder
      • Apple
      • Ash, European
      • Ash, Olive
      • Beech, European
      • Birch
      • Birch, Karelian Burl
      • Black Locust
      • Bog Oak
      • Cedar, European
      • Cherry, Sweet
      • Chestnut, Horse
      • Chestnut, Sweet
      • Cypress, Mediterranean
      • Elm
      • Fir, European Silver
      • Hawthorn
      • Hazelnut
      • Hornbeam
      • Laburnum
      • Lagerstroemia
      • Larch, European
      • London Plane
      • Lime, European
      • Madrone
      • Maple, European
      • Mulberry
      • Oak, Sessile
      • Olive
      • Olive, Russian
      • Poplar, Yellow
      • Pine, Maritime
      • Pine, Swiss Stone
      • Pine, unspecified
      • Pear
      • Poplar
      • Spruce, Fiemme (Ciresa tonewood)
      • Sumac
      • Walnut, European
      • Yew
    • North America
      • Ash, American White
      • Alder, Red
      • Beech, North American
      • Beech, North American
      • Boxelder
      • Butternut
      • Catalpa
      • Cedar, Eastern Red
      • Cedar, Western Red
      • Cherry, Black
      • Cypress, Bald
      • Cypress, Lawson
      • Desert Ironwood
      • Desert Ironwood
      • Dogwood
      • Fir, Douglas
      • Giant Sequoia
      • Hackberry
      • Hemlock
      • Hickory
      • Holly
      • Honey Locust
      • Juniperus misc.
      • Koa
      • Magnolia
      • Maple, Bigleaf
      • Maple, Bigleaf
      • Maple, Hard
      • Mesquite
      • Mesquite
      • Oak, Red
      • Oak, White
      • Osage Orange
      • Osage Orange, Green
      • Red Gum
      • Pecan
      • Pecan
      • Redwood
      • Sassafras
      • Service Tree
      • Sycamore, American
      • Sycamore, American
      • Walnut, Black
      • Walnut, Claro
      • Walnut, Claro
      • Willow
    • Oceania
      • Agathis
      • Ash, Crow’s
      • Australian Blackwood
      • Black Bean
      • Cedar, Australian Red
      • Eucalyptus, unspecified
      • Ash, Mountain
      • Gum, River Red
      • Oak, Tasmanian
      • Jarrah
      • Maple, Queensland
      • Oak, Northern Silky
      • Oak, Southern Silky
      • Pine, Huon
      • She-Oak, River
      • Spotted Gum
      • Tasmanian Myrtle
      • Walnut, Queensland
    • South and Central America
      • Angelim
      • Araucaria
      • Aspidosperma
      • Bloodwood
      • Bocote
      • Canarywood
      • Carapa
      • Cedar, Spanish
      • Cerejeira
      • Chechen
      • Cumaru
      • Curupixa
      • Freijo
      • Garapa
      • Goncalo Alves
      • Goupie
      • Granadillo
      • Guanacaste
      • Guatambu
      • Imbuia
      • Ipe
      • Jacareuba
      • Jatoba
      • Jequitiba
      • Katalox
      • Leopardwood
      • Lignum Vitae
      • Louro Faia
      • Louro Preto
      • Mahogany, Cuban
      • Mahogany, Honduras
      • Massaranduba
      • Nothofagus
      • Osage Orange, Argentine
      • Pao Rosa
      • Peroba Rosa
      • Piquiarana
      • Podocarpus
      • Primavera
      • Rosewood, Brazilian
      • Rosewood, Cocobolo
      • Rosewood, Honduras
      • Rosewood, Kingwood
      • Rosewood, Santos
      • Tatajuba
      • Timbauba
      • Tineo
      • Tulipwood (Brazilian)
      • Ziricote
  • Case studies
  • Credits
  • Contacts
  • Services
  • Shop
    • Woodworker’s Guide to Chatoyance
    • Woodworker’s Guide to Chatoyance – Compact Edition

Nargusta

terminalia amazonia, Combretaceae, Angiospermae (Hardwood)

reference picture – see below for more pictures

Other names: Verdolago amarillo, Carara, Cuiarana, Guarajuba, Jatai-amarello, Loirinho, Mirindiba, Pau mulato branco, Periquiteira, Timburita, Guayabillo, Guayabon, Yuyun, Naranjo, Volador, Alasoabo, Coffee mortar, Cokerwood, Fukadi, Naharu, Simia chimi, Yellow sanders, Anangossi, Anangossiti, Angouchy, Amarillo, Palo amarillo, Chamisa, Rifari, Yacushapana, Boes’amandra, Bosamandel, Kalebashout, Guyabi amarillo, Chicharron, Guayabo, Pata de dando amarillo

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: 4
Number of measurements: 12
Max PZC read (of all measurements): 14.7
Min PZC read (of all measurements): 7.9
Max PZC average on one log: 13.9
Min PZC average on one log: 8.7
PZC Average of all logs: 11.3

Species: terminalia amazonia
Family: Combretaceae
Clade: Angiospermae
Description: A large Amazonian tree characterized by simple, often clustered leaves, small flowers, and distinctive drupe fruits.
Other Local Names: Verdolago amarillo, Carara, Cuiarana, Guarajuba, Jatai-amarello, Loirinho, Mirindiba, Pau mulato branco, Periquiteira, Timburita, Guayabillo, Guayabon, Yuyun, Naranjo, Volador, Alasoabo, Coffee mortar, Cokerwood, Fukadi, Naharu, Simia chimi, Yellow sanders, Anangossi, Anangossiti, Angouchy, Naranjo, Nargusta, Volador, Amarillo, Amarillo, Palo amarillo, Chamisa, Rifari, Yacushapana, Boes’amandra, Bosamandel, Kalebashout, Guyabi amarillo, Chicharron, Guayabo, Pata de dando amarillo

Reference Colour: Yellow brown
Texture: Medium
Grain: Straight
Interlocked Grain: Absent
Notes: Light yellow to yellow brown wood. Sometimes, presence of reddish veins.

Diameter: 50÷90cm
Density @12% MC: 930kg/m³
Janka Hardness: 2880lbf
Crushing Strength @12%MC: 77MPa
Static Bending Strength @12%MC: 151MPa
Longitudinal Modulus of Elasticity E: 22.38GPa
Volumetric Shrinkage Coefficient: 0.57% per %
Total Tangential Shrinkage TS: 9.2%
Total Radial Shrinkage TS: 5.9%
T/R Anisotropy Ratio: 1.6-
Fibre Saturation Point: 25%
Thermal Conductivity: 0.3W/mk
Lower Heating Value: 18690KJ/Kg
Sapwood Thickness: 3÷8cm
Sapwood Demarcation: Clearly demarcated

Resistance to Decay: Class 3 – moderately durable
Resistance to Dry Wood Borers: Class D – durable (sapwood demarcated, risk limited to sapwood) TANIMBUCA / YELLOW SANDERS* Cross sections of Buchenavia fanshawei
Resistance to Termites: Class M – moderately durable
Treatability: Class 3 – poorly treatable
Use Class Covered by Natural Durability: Class 2 – inside or under cover (dampness possible)
Durability Notes: The species Buchenavia tetraphylla (called Gindya udu in Surinam) is reported to have a higher natural durability than the other Tanimbuca species.

Log Buoyancy: Does not float
Log Conservation: Moderate (treatment recommended)
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
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.
End Uses: Arched goods, Exterior joinery, Turned goods, Interior joinery, Heavy carpentry, Built-in furniture or mobile item, Ship building (planking and deck), Moulding, Shipbuilding (ribs), Flooring, Cabinetry (high-end furniture), Industrial or heavy flooring, Tool handles (resilient woods), Sliced veneer

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

Pictures – each from a different individual tree:

Log 1 (from [Source 28]) – PZC = 13.4
Log 2 (from [Source 4]) – PZC = 9.1

[Previous] —————— [Next]

Want to know more? Get Woodworker’s Guide to Chatoyance!

… and enjoy the read!

Lascia un commento Annulla risposta

Il tuo indirizzo email non sarà pubblicato. I campi obbligatori sono contrassegnati *

PZC Chatometry 2026 . Powered by WordPress