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Tauroniro
Tauroniro (Humiria balsamifera)

Family: Humiriaceae

Common names: Aneichi ou dou, Bakabe-ie, Basra bolletrie, Bastard bolletrie, Bastard bulletwood, Bastard bully, Bhoso, Blackaberie, Bois a flambeau, Bois d'encens, Bois rouge, Boume houmiri, Caramura, Chilco, Couramira, Couranira, Couranoura, Gomier de montagne, Gommier de montagne, Homiry, Houmiri, Houmiri boumier, Humiry, Kierie-ma, Meri, Nieri, Nina, Nino, Olorosa, Oloroso, Omiry, Quera, Quinilla, Racine, Swietimerie, Tabaniro, Taranira, Tauaranru, Tauroniro, Tawanangro, Tourameira, Touroniro, Towaronero, Toweroenierou, Triane, Turamira, Turanira, Turi, Umiri, Umiri balsamo, Umiry, Umiry de casca cheiro, Umiry de cheiro

Distributed in: Brazil, Colombia, Columbia, French Guiana, Guyana, Peru, Suriname, Venezuela (Central America, Latin America)

Distribution overview: The Guianas, Colombia, Venezuela, and the Brazilian Amazon. In Guyana it is a principal dominant species in the marsh forests; does best on light sandy soils. In Surinam occurs in savanna forests.

Common uses: Agricultural implements, Boat building (general), Bridge construction, Building construction, Building materials, Cabin construction, Chairs, Chests, Concealed parts (Furniture), Construction, Cooperages, Decorative veneer, Desks, Dining-room furniture, Domestic flooring, Dowell pins, Dowells, Drawer sides, Factory construction, Factory flooring, Figured veneer, Fine furniture, Floor lamps, Flooring, Furniture , Furniture components, Furniture squares or stock, Furniture, Hatracks, Heavy construction, Joinery, Kitchen cabinets, Light construction, Living-room suites, Mine timbers, Office furniture, Parquet flooring, Piling, Plywood, Poles, Radio - stereo - TV cabinets, Railroad ties, Rustic furniture, Stools, Sub-flooring, Tables , Tables, Tool handles, Utility furniture, Vehicle parts, Veneer, Veneer: decorative, Wardrobes, Wheel spokes, Wheels

Product sources: The ITTO reports that the species is an important source of timber locally. Export potential is rated as fair.

Environment profile: Status has not been officially assessed

Colors: the heart isPurple, Reddish brownand the sapwoodPaler than heartwood, Same as heartwood.The grain isStraight, the textureMedium coarse to coarseand the lusterLustrous

Natural durability: Susceptible to marine borer attack, Very durable

Odor: No specific smell or taste

LightInduced Color Change: Lighter

Kiln Schedules: Drying (speed) is fast

Drying Defects: Slight surface checking, Slight twist/warp

Ease of Drying: Moderate

Tree Identification: Bole/stem form is not buttressed

Comments: General finishing qualities are rated as good

Boring: Easy

Carving: Generally poor

Cutting Resistance: Cutting Resistance with dry wood is easy

Planing: Ease of planing is moderate

Response to hand tools: Moderate working qualities

Sanding: Difficult to sand

Turning: Difficult to turn

Polishing: Satisfactory;

  • Numerical data Metric
  • Numerical data English
  • Strength properties
  • References
Item Green Dry Metric
Specific Gravity 0,62 0,71
Density 817 kg/m3
Bending Strength 867 1355 kg/cm2
Crushing Strength 59 67 kg/cm2
Hardness 767 kg
Impact Strength cm
Shearing Strength 150 kg/cm2
Stiffness 150 177 1000 kg/cm2
Tangential Shrinkage 9 %
Radial Shrinkage 6 %
Weight 801 641 kg/m3
Maximum Load 0,7 1,4 cm-kg/cm3
Toughness 164 cm-kg
Static Bending 538 761 kg/cm2
Item Green Dry English
Bending Strength 12335 19277 psi
Crushing Strength 853 960 psi
Density 51 lbs/ft3
Hardness 1693 lbs
Maximum Crushing Strength 6425 9549 psi
Shearing Strength 2140 psi
Static Bending 7664 10829 psi
Stiffness 2135 2527 1000 psi
Toughness 143 inch-lbs
Work to Maximum Load 10 20 inch-lbs/in3
Specific Gravity 0.62 0.71
Weight 50 40 lbs/ft3
Radial Shrinkage 6 %
Tangential Shrinkage 9 %
Volumetric Shrinkage 15 %

Modulus of Elasticity (stiffness) = high
Max. crushing strength = high
Hardness (side grain) = medium
Bending strength (MOR) = high
Shrinkage, Tangential = large
Shrinkage, Radial = large
Shearing strength (parallel to grain) = medium
Density (dry weight) = 46-52 lbs/cu. ft.
Bending strength (MOR) = medium
Shrinkage, Volumetric = large
Density (dry weight) = 53-60 lbs/cu. ft.
Shrinkage, Tangential = fairly large
Shrinkage, Radial = fairly large
Shearing strength (parallel to grain) = low
Hardness (side grain) = hard
Density (dry weight) = 61-67 lbs/cu. ft.
Bending strength (MOR) = very high

Bena, P.,1960,Essences Forestieres de Guyane,Bureau Agricole et Forestier Guyanais GuyanaBerni, 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 ResearchChichignoud, M., G. Deon, P. Detienne, B. Parant and P. Vantomme.1990.Tropical Timber Atlas of Latin America.International Tropical Timber Organization (ITTO, Centre Technique Forestier Tropical, Division of CIRAD, 45 bis Avenue de la Belle Gabrielle, Nogent-sur-Marne, CEDEX, France.Chudnoff, M.,1984,Tropical Timbers of the World,U.S.A. Department of Agriculture, Forest Service, Forest Products,Laboratory, Madison.Edmondson, C.H.,1949,Reaction of Woods from S.America and Caribbean areas to Marine Borers in,Hawaiian Waters,Caribbean Foresters,10(1,PP37-41Erfurth, T., Rusche, H.,1976,The Marketing of Tropical Wood B. Wood Species from S. American Tropical,Moist Forests,F.A.O. Forestry DepartmentFanshawe, D.B.,1954,Forest Products of British Guiana Part 1 Principal Timbers,Forest Department British Guiana Forestry Bulletin (New Series 2nd,Edition,No.1Longwood, F.R.,1962,Commercial Timbers of the Caribbean,U.S.A. Department of Agriculture, Agriculture Handbook,No.207Peru - P.A.D.T.,1981,Descripcion general y anatomica de 105 Maderas del Grupo Andino,Junta del Acuerdo de Cartagena, P.A.D.T. Report, Junac, Lima, Peru.Peru - P.A.D.T.,1981,Tablas de propiedades fisicas y mecariicas de la Madera de 24 especies de,Colombia,Junta del Acuerdo de Cartagena, P.A.D.T. Report, Lima, Peru.Polak, A.M.,1992,Major Timber Trees of Guyana A Field Guide,The Tropenbos Foundation Wageningen, The NetherlandsRecord, S.J., Hess, R.W.,1943,Timbers of the New World,Yale University PressRecord, S.J., Mell, C.D.,1924,Timbers of Tropical America,Yale Univ. PressWangaard, 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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