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PZC Chatometry

A standard system to measure wood chatoyance

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  • What is Chatoyance?
    • Curl
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    • Scale example 1
    • Scale example 2
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    • Africa
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    • North America
      • Ash, American White
      • Alder, Red
      • Beech, North American
      • Beech, North American
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      • Sycamore, American
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    • Oceania
      • Agathis
      • Ash, Crow’s
      • Australian Blackwood
      • Black Bean
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      • Eucalyptus, unspecified
      • Ash, Mountain
      • Gum, River Red
      • Oak, Tasmanian
      • Jarrah
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      • Oak, Northern Silky
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      • Pine, Huon
      • She-Oak, River
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    • South and Central America
      • Angelim
      • Araucaria
      • Aspidosperma
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      • Podocarpus
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      • Rosewood, Cocobolo
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      • Rosewood, Kingwood
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      • Tulipwood (Brazilian)
      • Ziricote
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Gum, Shining

Botanical NameEucalyptus Nitens
Common NamesGum, Shining
Number of sources2
Number of different logs2
Number of specimens14
Number of measurements42
Max PZC read (of all measurements)19.0
Min PZC read (of all measurements)12.4
Max PZC average on one log16.2
Min PZC average on one log14.2
PZC Average of all logs15.2
Summary table

Visualized Chatoyance examples (one each different log)

Log 1 (from John Fairweather) – PZC = 17.9
Log 2 (from I. Beasley / S. Meldrum) – PZC = 13.4

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