Cabo de lanza (Bumelia obtusifolia)
Family: Sapotaceae
Common names: Cabo de lanza, Chiri-molle, Chupon, Guaranina, Horco molle, Ibira-hu, Ibira-nira, Ibiranina, Lanza colorada, Molle crespo, Molle del monte, Molle negro, Palo lanza, Palo piedra
Distributed in: Argentina (Latin America)
Common uses: Charcoal, Flooring, Fuelwood, Furniture, Handles: general, Heavy construction, Joinery, Light construction, Tool handles, Vehicle parts, Wheel spokes, Wheels
Tree size: Trunk diameter is 100-150 cm
Colors: the heart isRed, Yellow to golden-yellow to orangeand the sapwoodWhite to yellow, Yellow.The grain isStraight, the textureMedium to coarseand the lusterLustrous
Natural durability: Non durable
Ease of Drying: Difficult
Comments: General finishing qualities are rated as good
Planing: Easy to plane
Response to hand tools: Fairly Difficult to Difficult to Work
Polishing: Satisfactory;
- Numerical data Metric
- Numerical data English
- Strength properties
- References
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| Item |
Green |
Dry |
Metric |
| Specific Gravity |
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| Density |
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881 |
kg/m3 |
| Bending Strength |
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kg/cm2 |
| Crushing Strength |
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kg/cm2 |
| Hardness |
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kg |
| Impact Strength |
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cm |
| Shearing Strength |
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kg/cm2 |
| Stiffness |
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1000 kg/cm2 |
| Tangential Shrinkage |
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% |
| Radial Shrinkage |
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% |
| Weight |
865 |
689 |
kg/m3 |
| Maximum Load |
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cm-kg/cm3 |
| Toughness |
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cm-kg |
| Static Bending |
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kg/cm2 |
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 |  |  |  | | Item | Green | Dry | English | | Density | | 55 | lbs/ft3 | | Weight | 54 | 43 | lbs/ft3 | | Volumetric Shrinkage | 15 | | % | |
Density (dry weight) = 61-67 lbs/cu. ft Density (dry weight) = 53-60 lbs/cu. ft Density (dry weight) = 46-52 lbs/cu. ft. Shrinkage, Volumetric = large
Celulosa Argentina,1973,Libro del Arbol,Celulosa Argentina Buenos Aires 3 VolsRecord, 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. PressRecord, S.J.,1939,American Woods of the Family Sapotaceae,Tropical Woods 8(59) pp21-51Tortorelli, L.,1956,Maderas y Bosques Argentinos,Editorial Acme S.A.C.I. Buenos Aires
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