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Nargusta
Nargusta (Terminalia amazonica)

Family: Combretaceae

Common names: Almendro, Amarillo carabazuelo, Aromilla, Canshan, Cochun, Coffee mortar, Cuiarana, Fukadi, Guayabo, Guayabo leon, Nacastillo, Nargusta, Pardillo negro, Pau-mulato brancho, Tanimbuca, White oliver

Distributed in: Bahamas, Belize, Brazil, Columbia, Cuba, Dominican Republic, Ecuador, El Salvador, Guatemala, Guyana, Haiti, Honduras, Jamaica, Mexico, Nicaragua, Panama, Peru, Suriname, Trinidad and Tobago, Venezuela (Central America, Latin America)

Distribution overview: The species occurs in Central and South America. Its range extends southward from southern Mexico through Central America and into northern South America to Brazil and Peru. The tree is common in the Wallaba forests of Guyana. It is also found in Trinidad, and is scattered in very small concentrations per acre in the forests in Belize.

Common uses: Boat building, Cabinetmaking, Construction, Flooring, Furniture , Railroad ties, Shipbuilding, Turnery, Utility plywood

Product sources: Although Nargusta is rather abundant within its growth range,

Environment profile: Rather secure within its natural growth range

Tree size: Trunk diameter is 150-200 cm

Colors: the heart isYellow, Yellowish-Olive and the sapwoodWhite to yellow, Yellow.The grain isIrregular, the textureMediumand the lusterMedium to high

Natural durability: Susceptible to attack by subterranean termites , Susceptible to insect attack

Odor: No specific smell or taste

Kiln Schedules: T3-C2 (4/4) T3-C1(8/4) US/T3-C2 (4/4) T3-C1(8/4) U

Kiln Drying Rate: Rapid

Drying Defects: Sever warping and checking , Splitting

Ease of Drying: Variable results.

Blunting Effect: Little

Boring: Fairly easy to very easy

Carving: Fairly Easy to Very Easy

Cutting Resistance: Fairly difficult to saw

Gluing: Good gluing properties

Mortising: Fairly Easy to Very Easy

Moulding: Fairly Easy to Very Easy

Movement in Service: Fairly Easy to Very Easy

Nailing: Fairly Easy to Very Easy, Pre-boring required

Planing: Very Good to Excellent

Resistance to Impregnation: Sapwood response to preservative treatment is variable

Response to hand tools: Very difficult to work with hand tools

Routing recessing: Fairly Easy to Very Easy

Sanding: Fairly Easy to Very Easy

Veneering qualities: Veneers easily, Veneers moderately easy

Steam bending: Unsuitable

Screwing: Good screw holding properties, Pre-Boring is recommended in screwing ; Turning: Gluing is often difficult

Polishing: Yields a shiny surface ; Staining: Very Good to Excellent;

  • Numerical data Metric
  • Numerical data English
  • Strength properties
  • References
Item Green Dry Metric
Specific Gravity 0,63 0,76
Density 785 kg/m3
Bending Strength 835 1223 kg/cm2
Crushing Strength 73 84 kg/cm2
Hardness 715 kg
Impact Strength 83 cm
Shearing Strength 134 kg/cm2
Stiffness 138 158 1000 kg/cm2
Tangential Shrinkage 9 %
Radial Shrinkage 6 %
Weight 769 624 kg/m3
Maximum Load 0,84 1,12 cm-kg/cm3
Toughness 210 cm-kg
Static Bending 531 779 kg/cm2
Item Green Dry English
Bending Strength 11887 17395 psi
Crushing Strength 1039 1205 psi
Density 49 lbs/ft3
Hardness 1578 lbs
Impact Strength 33 inches
Maximum Crushing Strength 5419 9349 psi
Shearing Strength 1911 psi
Static Bending 7556 11084 psi
Stiffness 1970 2254 1000 psi
Toughness 183 inch-lbs
Work to Maximum Load 12 16 inch-lbs/in3
Specific Gravity 0.63 0.76
Weight 48 39. lbs/ft3
Radial Shrinkage 6 %
Tangential Shrinkage 9 %
Volumetric Shrinkage 15 %

Heavy
Hard
Dense
Nargusta has medium strength properties in bending, crushing, and resistance to shock loads. It is low in stiffness

Boone, R.S., C.J. Kozlik, P.J. Bois and E.M. Wengert. 1988. Dry Kiln Schedules for Commercial Woods: Temperate and Tropical. United States Department of Agriculture, Forest Service, General Technical Report FPL-GTR-57, Forest Products Laboratory, Madison, Wisconsin.Chudnoff, M.,1984,Tropical Timbers of the World,U.S.A. Department of Agriculture, Forest Service, Forest Products,Laboratory, Madison.Descriptiva Data SourceKribbs, D.A. 1959. Commercial Foreign Woods on the American Market. Buckhout Lab., Dept. of Botany, The Pennsylvania State University, University Park, Pennsylvania.Lavers, G.M. 1967. The Strength Properties of Timbers. Forest Products Research Bulletin, No. 50 (Spersedes Bulletin No. 45). Ministry of Technology, Her Majesty's Stationery Office, London.Lincoln, W.A. 1986. World Woods in Color. Linden Publishing Co. Inc. Fresno, California.Teixeiro, D.E., M.A.E. Santana, and M. Rabelo de Souza. 1988. Amazonian Timbers for the International Market. International Tropical Timber Organization (ITTO) Technical Series 1, Prepared by the Brazilian Institute for Forestry Development, Brasilia, Brazil.Wangaard, F.F. and A.F. Muschler.1952. Properties and Uses of Tropical Woods III, Tropical Woods, No. 98,Yale University Press, School of Forestry, New Haven, Connecticut.WCMC. 1992. Conservation Status Listing: Trees and Timbers of the World. World Conservation Monitoring Center (WCMC, Plants Program, 219 Huntingdon Road, Cambridge, CB3 ODL, United Kingdom.
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