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Ditta 5
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Kirikaua
Kirikaua (Iryanthera lancifolia)

Family: Myristicaceae

Common names: Kirikaua, Kirikawa, Marbuk, Moussigot rouge, Savannah dalli, Swamp kirikaua, Ucuhuba-rana, Weputana

Distributed in: Brazil, Guyana, Peru, Suriname (Latin America)

Common uses: Boxes and crates, Cabinetmaking, Concrete formwork, Cooperages, Furniture, Handles: general, Joinery, Ladders, Light construction, Millwork, Oars, Plywood, Turnery, Vats, Veneer

Environment profile: Rare

Tree size: Trunk diameter is 200-250 cm

Colors: the heart isWhite to cream, Yellow to golden-yellow to orangeand the sapwoodWhite to yellow, Yellow.The grain isStriped figure, the textureMedium coarse to coarseand the lusterSlightly lustrous

Natural durability: Susceptible to attack from termites (Isoptera), Very durable

Odor: Has an odor

Kiln Schedules: Drying (speed) is fast

Kiln Drying Rate: Naturally dries slowly

Drying Defects: Slight surface checking, Slight twist/warp

Ease of Drying: Slowly

Tree Identification: Bole/stem form is straight

Blunting Effect: Moderate

Boring: Very good to excellent results

Carving: Fairly Easy to Very Easy

Cutting Resistance: Easy to saw

Gluing: Fairly Easy to Very Easy

Mortising: Very Good to Excellent

Moulding: Poor to Very Poor

Movement in Service: Poor to Very Poor

Nailing: Fair to Good

Planing: Planes well, to a good finish

Resistance to Impregnation: Sapwood is permeable

Response to hand tools: Responds Readily

Routing recessing: Fairly Easy to Very Easy

Sanding: Very Good to Excellent Results

Veneering qualities: Veneers easily, Veneers moderately easy

Steam bending: Fairly Easy to Very Easy

Screwing: Fair to Good Results, Fairly Easy to Very Easy; Turning: Very Good to Excellent Results

Painting: Very Good to Excellent; Polishing: Very Good to Excellent; Staining: Very Good to Excellent; Varnishing: Very Good to Excellent;

  • Numerical data Metric
  • Numerical data English
  • Strength properties
  • References
Item Green Dry Metric
Specific Gravity
Density 576 kg/m3
Bending Strength 542 849 kg/cm2
Crushing Strength 275 449 kg/cm2
Hardness 451 kg
Impact Strength cm
Shearing Strength 85 kg/cm2
Stiffness 117 135 1000 kg/cm2
Tangential Shrinkage %
Radial Shrinkage 5 %
Weight 560 432 kg/m3
Maximum Load 0,35 0,49 cm-kg/cm3
Toughness cm-kg
Static Bending kg/cm2
Item Green Dry English
Bending Strength 7711 12078 psi
Density 36 lbs/ft3
Hardness 995 lbs
Maximum Crushing Strength 3916 6397 psi
Shearing Strength 1221 psi
Stiffness 1665 1923 1000 psi
Work to Maximum Load 5 7 inch-lbs/in3
Weight 35 27 lbs/ft3
Radial Shrinkage 5 %
Tangential Shrinkage 10 %

Density (dry weight) = 38-45 lbs/cu. ft.
Density (dry weight) = 31-37 lbs/cu. ft.
Work to Maximum Load = very low
Shrinkage, Tangential = large
Modulus of Elasticity (stiffness) = medium
Max. crushing strength = medium
Hardness (side grain) = soft
Density (dry weight) = 46-52 lbs/cu. ft.
Density (dry weight) = 23-30 lbs/cu. ft.
Shrinkage, Radial = large
Shrinkage, Radial = fairly large
Shearing strength (parallel to grain) = very low
Shearing strength (parallel to grain) = low
Bending strength (MOR) = medium
Bending strength (MOR) = low

Berni, C.A., Bolza, E., Christensen, F.J.,1979,South American Timbers - The Characteristics, Properties and Uses of 190,Species,C.S.I.R.O Div. Building ResearchFanshawe, D.B.,1954,Forest Products of British Guiana Part 1 Principal Timbers,Forest Department British Guiana Forestry Bulletin (New Series 2nd,Edition,No.1France - C.T.F.T./C.T.B.,1982,Guide pour le Choix des Essences Deroulables-pour la fabrication du,contreplaque,C.T.F.T./C.T.B. FranceGuyana Forest Department,1971,Kirikaua (Iryanthera lancifolia,Guyana Forest and Timber (formerly Guyana Forest Industries Newsletter) 1:,1, 2.Polak, A.M.,1992,Major Timber Trees of Guyana A Field Guide,The Tropenbos Foundation Wageningen, The NetherlandsWangaard, F.F., W.L. Stern, and S.L. Goodrich. 1955. Tropical Woods - Properties and Uses of Tropical Woods, Volume V, No. 103. School of Forestry, Yale University, New Haven, Connecticut.
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